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etch resist-it works so far

etch resist-it works so far

2004-01-30 by pebo festus

i finally got around to using soidium silicate(water glass)on a small
piece of pcb. i hardened it with co2(carbon dioxide), then etched
with ferric chloride?(sp).i used a tooth pick and put some small
dots,large dot and a line of water glass on the board, then hardened
and etched, it came out excelant.i noticed a very small dot that i
put on there, it was about .005 of an inch. NOW -if i can gat an
inkjet printer to handle the water glass and a streight through feed
for the pcb i will be in business.
if any one has any suggestion on what printer to use i would
appreceiate it.i dont know which would be best-a pezeio or heated ink
head. the water glass has some water in it. JUST LOOKIN FOR SOME
THOUGHTS FROM OTHERS.
mebo

Re: [Homebrew_PCBs] etch resist-it works so far

2004-01-30 by Stefan Trethan

On Fri, 30 Jan 2004 21:58:46 -0000, pebo festus <mebo31@...> wrote:

> i finally got around to using soidium silicate(water glass)on a small
> piece of pcb. i hardened it with co2(carbon dioxide), then etched
> with ferric chloride?(sp).i used a tooth pick and put some small
> dots,large dot and a line of water glass on the board, then hardened
> and etched, it came out excelant.i noticed a very small dot that i
> put on there, it was about .005 of an inch. NOW -if i can gat an
> inkjet printer to handle the water glass and a streight through feed
> for the pcb i will be in business.
> if any one has any suggestion on what printer to use i would
> appreceiate it.i dont know which would be best-a pezeio or heated ink
> head. the water glass has some water in it. JUST LOOKIN FOR SOME
> THOUGHTS FROM OTHERS.
> mebo
>

Don't waste your time with a thermo printer.
I tried with acrylic paint (water solube strongly diluted in the form of
floor polish).
If you have any chance to get this working it is with a piezo.


Also keep in mind that anything works "toothpick applied".
e.g. use colophony resin solved in alcohol or paint thinner.
works perfectly if applied with a brush (or toothpick).
dries in seconds to minutes in air (no hardening).
is a good resist, and a very good flux also as a side effect.

Problem: i won't "toothpick" my pcbs and i found no way applying it
by printing.


Nearly any laquer will work very well as a resist.
the hard part is to get it printed in a thick enough even enough continous
layer.
i personaly very much wonder why you insist on using water glass.
(what is the reason?) i would rather try the acrylic paint with a piezo.
I see no advantage in a resist that is water soluble and needs co2
hardening.

looking forward to any results you get..

ST

Re: etch resist-it works so far

2004-01-30 by mikezcnc

Won't work. Will clog up the cartridge. The software algorithm
controlling the jets is designed for certain types of ink. You need
an alcohol based ink. While you are at it, try to develop a
conductive ink as that do awway with nasty etching. Mike

Re: etch resist-it works so far

2004-01-30 by pebo festus

ok, thanks stefan, i only used the tooth pick to get some small dots
on the test pcb, will not be using the pick to lay out the board. you
are right on the thermo printer for acrylic,but waterglass may have a
different composition than acrylic. i have a thermo now, am working
on getting the carteridge cleaned to try it.
i dont nessercerly have to use waterglass but as you have stated
there are problems with all other salutions.after hardning the
waterglass didnt come off the trace, the etched board will have to be
sanded to remove the silicate, it fairly durable.
i do appreciate your response and if you hve more to add please do so.
mebo


>
> Don't waste your time with a thermo printer.
> I tried with acrylic paint (water solube strongly diluted in the
form of
> floor polish).
> If you have any chance to get this working it is with a piezo.
>
>
> Also keep in mind that anything works "toothpick applied".
> e.g. use colophony resin solved in alcohol or paint thinner.
> works perfectly if applied with a brush (or toothpick).
> dries in seconds to minutes in air (no hardening).
> is a good resist, and a very good flux also as a side effect.
>
> Problem: i won't "toothpick" my pcbs and i found no way applying it
> by printing.
>
>
> Nearly any laquer will work very well as a resist.
> the hard part is to get it printed in a thick enough even enough
continous
> layer.
> i personaly very much wonder why you insist on using water glass.
> (what is the reason?) i would rather try the acrylic paint with a
piezo.
> I see no advantage in a resist that is water soluble and needs co2
> hardening.
>
> looking forward to any results you get..
>
> ST

Re: etch resist-it works so far

2004-01-31 by pebo festus

--- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> wrote:
> Won't work. Will clog up the cartridge. The software algorithm
> controlling the jets is designed for certain types of ink. You need
> an alcohol based ink. While you are at it, try to develop a
> conductive ink as that do awway with nasty etching. Mike

ok, thanks mike, this is the kind of info i am looking for.by the
way, the thought of conductive ink is a good idea, if one can come up
with an ink that can except solder and heat.
I am not sure i can add alcohol to waterglass but may try a small
amount. what kind of alcohol is in the printer ink ?
methanal,ethanol?????
mebo

Re: etch resist-it works so far

2004-01-31 by pebo festus

--- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> wrote:
> Won't work. Will clog up the cartridge. The software algorithm
> controlling the jets is designed for certain types of ink. You need
> an alcohol based ink. While you are at it, try to develop a
> conductive ink as that do awway with nasty etching. Mike

BY the way mike, what kind of ink does the piezo printers use???
mebo

Re: etch resist-it works so far-to mike

2004-01-31 by pebo festus

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...>
wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...>
wrote:
> > Won't work. Will clog up the cartridge. The software algorithm
> > controlling the jets is designed for certain types of ink. You
need
> > an alcohol based ink. While you are at it, try to develop a
> > conductive ink as that do awway with nasty etching. Mike
>
> BY the way mike, what kind of ink does the piezo printers use???
> mebo

ok mike , read on the label of the carterage--its got isopropyl
alcohol in it,looking better all time. that is regular rubbing
alcohol.
mebo

Re: [Homebrew_PCBs] Re: etch resist-it works so far-to mike

2004-01-31 by Stefan Trethan

> ok mike , read on the label of the carterage--its got isopropyl
> alcohol in it,looking better all time. that is regular rubbing
> alcohol.
> mebo
>
>

another thought:

i was so stupid to convert a printer to flatbed before making sure the ink
will work.
it did not.


do test the printing first with the printer like it is, on a sheet of
paper and maybe
on a sheet of plastic (ohp transparency).

maybe you will find a way to color the water glass (assuming it is
transparent here)
to see it better (on the paper and on the copper later).

good luck!

ST

Re: [Homebrew_PCBs] Re: etch resist-it works so far-to mike-and stefan

2004-02-01 by pebo festus

good thoughts stefan, already had run that through my
beady little brain. my big problem now is to get the
cartaridge clean and get the old canon printer hooked
to a computer. i dont want to ruin my black ink
cartaridge, i will try to find two or three empty ones
and disect one to see how to clean and refill with
what i want. the driver for the old canon bj200 is a
touch over 3 meg so cant put it on a 31/2 floppy. i
ahve an old 286 ibm i was planing on useing but it
doesnt have a cd rom.
tia
mebo


__________________________________
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Yahoo! SiteBuilder - Free web site building tool. Try it!
http://webhosting.yahoo.com/ps/sb/

Re: [Homebrew_PCBs] Re: etch resist-it works so far-to mike-and stefan

2004-02-01 by Stefan Trethan

On Sat, 31 Jan 2004 20:53:51 -0800 (PST), pebo festus <mebo31@...>
wrote:

> good thoughts stefan, already had run that through my
> beady little brain. my big problem now is to get the
> cartaridge clean and get the old canon printer hooked
> to a computer. i dont want to ruin my black ink
> cartaridge, i will try to find two or three empty ones
> and disect one to see how to clean and refill with
> what i want. the driver for the old canon bj200 is a
> touch over 3 meg so cant put it on a 31/2 floppy. i
> ahve an old 286 ibm i was planing on useing but it
> doesnt have a cd rom.
> tia
> mebo
>
>

why not use the pc you write your emails with?

a 286 is maybe a bit old, should be no problem to get something with over
100mhz for free?

Is this canon a piezo printer?
I really doubt a thermoprinter will work, but you will see......

I would advise getting one at ebay, they are sold for some 10 to 20 eur.
maybe this is also a good source for a old "test pc", i do not know.
the old computers are strangely expensive on our ebay so it is better to
ask around
and get them for free...


ST

Re: [Homebrew_PCBs] Re: etch resist-it works so far-to mike-and stefan

2004-02-01 by pebo festus

thanks for the thoughts stefan.the canon is a thermo,
i am looking for a piezo to try also. yes i have two
more computers, a intel 350 and an intel 600, just
thought might set the 286 up out in the shop. the
canon bj200 carteridge has isopropyl alcohol 67-63-0
written on it, dont know what that is telling me. i
mixed a small amout of water glass and propalene
glycol yesterday and it gelled and set up kinda
hard,was thinking what chemical i can print(get thrugh
the ink carterage) with and paint the board with the
other,run through the printer and have them harden.
like i have said before "there just has to be an
easier way to get the etch resist on the board." would
be nice to run the blank pcb through the printer, set
the resist and etch. but nothing ever comes easy or
cheap.
mebo


__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free web site building tool. Try it!
http://webhosting.yahoo.com/ps/sb/

Re: [Homebrew_PCBs] Re: etch resist-it works so far-to mike-and stefan

2004-02-01 by Stefan Trethan

On Sun, 1 Feb 2004 07:43:32 -0800 (PST), pebo festus <mebo31@...>
wrote:

> thanks for the thoughts stefan.the canon is a thermo,
> i am looking for a piezo to try also. yes i have two
> more computers, a intel 350 and an intel 600, just
> thought might set the 286 up out in the shop. the
> canon bj200 carteridge has isopropyl alcohol 67-63-0
> written on it, dont know what that is telling me. i
> mixed a small amout of water glass and propalene
> glycol yesterday and it gelled and set up kinda
> hard,was thinking what chemical i can print(get thrugh
> the ink carterage) with and paint the board with the
> other,run through the printer and have them harden.
> like i have said before "there just has to be an
> easier way to get the etch resist on the board." would
> be nice to run the blank pcb through the printer, set
> the resist and etch. but nothing ever comes easy or
> cheap.
> mebo
>
>

maybe we should try the ink which is alerady in the cartridge?
why won't it work? i think it is water resistant.

you already have the bj200 so it does not hurt to try.
but i bet it will not work ;-).

as said i see only a chance with the piezo jet,
and then there i see a huge load of problems coming...

I have wasted more time with inkjets than i ever used for toner transfer.
if i get rid of the recent problems again i really need nothing else.
- which does not mean i wouldn't like the inkjet thing, the resolution
could
be pretty high....

st

OK, mebp-pebo

2004-02-01 by mikezcnc

Sorry for bursting your bubble but it is what it is and I am not
going to use a positive psychology of the type "the minute you say
something is not possible, so it becomes". It doesn't matter what I
am saying (at least it shouldn't) - I am just telling you: forget it
and do something else. Use a plotter and ink pen.

People print DNAs with inkjets. Commercial labs already figured out
how to print conductive ink. That has been figured out. Conductive
ink has already been even on the market until they removed it. Now
they also print passives, resistors and caps. The new frontier is to
print silicon so one can print his own transistors...10 years away?

I ruined 3 printers and I recovered one of them. The minute you
change the ink structure it will print, all right, but it will start
behaving differently on different surfaces. I discovered that my
thinned out floor wax (by the way that Future Floor Wax and for
youngsters it is an old company named 'Future' that made that
fabulous gloss layering liquid that cannot be bought at Home Depot-
only small and old time ACE type places) so the remnants of that
Future Wax diluted the ink enough to make it out of focus on paper...

It's a whole new hobby, I spent a month, my buddy is still pushing
the subject but I am done with it and discourage anybody I can. What
works though, are the permanent ink pens in plotters. I tried it 2
years ago and got GREAT success. The problem was that the ink pen was
held with a duct tape and so it had tendency to fall off at the end
of the plot. Then the tip was rendered useless on complex boards
(flattened from smacking against the PCB) and 04mm at best (I got one
01 this week but haven't tried it yet). I also changed the plotter.

What also works is photography methd. The results I am getting on my
own emulsion make me think of etching silicon..

Most of the information on the subject on the web is deception and
false. You have to choose wisely and frankly, I venture to say that
100% on the subject is useless-you are on your own. Mike

Re: etch resist-it works so far-to mike-and stefan

2004-02-01 by pebo festus

thanks stefan,i may try the ink in the canon cartaridge, but i THINK
its a water and isopropyl alcohol mix, if so the etch will take it
off. we will keep trying here and will keep posting my results.
mebo

Re: OK, mebp-pebo-thanks mike.

2004-02-01 by pebo festus

thank you mike for your frankness,sounds like you have gone down the
inkjet road quite a considerable distance. i am just lookin for an
easier way to get etch resist on the board. i have tried ironing on
the resist from a copier, works fair, but kinda a hassel. yes i have
read about the other things they are doing with jet printing, buuuuut
industry hides every thing they can to keep us form using a printer
for other uses. MAYBE SOMEDAY?
mebo

inkjet way to pebo

2004-02-01 by mikezcnc

Inkjet way, you are saying. Well, I think you should ask yourself a
question: what kind of resolution do I need? Will I be happy with
truhole or do I need smd resolution. What size of boards am I
planning: small or large? What method does already work for me and
what is the cost per board size that I use, including special papers,
sheets, toners, printers, whatever.

Once you answered that quastion, you are almost there.

My inner piece will be ruined forever if you develop an inkjet ink, I
will go more insane than I already have. This note is intended to
motivate you in your reserch.

Rememeber: nobody on this board shares what he learned that works.
This is a fact of life and this is what it is. You are alone and you
have no friends. If you hear a contrary opinion it is a decieving
voice of marketing devil applying creative marketing techniques. If
something sounds to good to be true... it means you found an idea for
a new product. Test it. Piss on the whole world and trust only your
inner voice.

Mike

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...>
wrote:
> thank you mike for your frankness,sounds like you have gone down
the
> inkjet road quite a considerable distance. i am just lookin for an
> easier way to get etch resist on the board. i have tried ironing on
> the resist from a copier, works fair, but kinda a hassel. yes i
have
> read about the other things they are doing with jet printing,
buuuuut
> industry hides every thing they can to keep us form using a printer
> for other uses. MAYBE SOMEDAY?
> mebo

Standard inkjet inks for etch resist?

2004-02-02 by Steve

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:

> maybe we should try the ink which is alerady in the cartridge?
> why won't it work? i think it is water resistant.
>
> you already have the bj200 so it does not hurt to try.
> but i bet it will not work ;-).

Some of the Canon black ink is pigmented, but all of the color ink is
dye based and runs at the slightest hint of moisture unless on special
paper.

It also beads up like mad on glossy non-inkjet surfaces. I've tried.

> as said i see only a chance with the piezo jet,
> and then there i see a huge load of problems coming...

Hey! Pigmented inks for Epson printers are waterfast, or at least
water resistant.

The big problem is that standard inkjet inks don't stick well unless
the surface is treated with something. And that kinda subverts etching
if the board has a coating.

However- pigmented inks can print on glossy paper, they just take
forever to dry. No reason you can't heat the board to dry the ink.

That Epson 800 (non-color version) that I have is still sitting here
without an ink tank. However, I am about to fit an Epson 1520 with
pigmented inks. It has a straight through paper path and should feed
some of the very thin double-sided PCB I have here. I'll scrub it up
with plastic scrubber and a degreaser like Comet, as if to do toner
transfer. Then I think I may heat the board before printing on it,
then maybe set it on a warmer plate to dry.

Most of the new Epson models like the C84 use their new resin coated
pigmented inks that are made to work better with glossy paper, so they
may work better than generic pigmented inks or older Epson pigmented
printers like the C80, C82, 1280, etc. But 3rd party pigmented inks
are -much- cheaper.

Steve

Re: Standard inkjet inks for etch resist? -more

2004-02-02 by mikezcnc

Actually teh Epsaon 1520 might work. I learned that it is the screen
printer's favorite and the larger model Epson 3000. The waterproof
colors is a right direction to go and the problem with regular inks
was that they do bead, like you noticed and thus lines are not solid.
They also wash off in water.

Perosnally, the whole discussion got me to start my proect with
plotter. Anazingly, I was able to 'retrofit' an ink pen in 5 minutes.
I am using HP type ink pens with fiber tips which is not a great
resolution but it might be enough for quick prototypes. Procedure:
remove the cap of the plotter pen by prying the cap with exacto
knife. Remove the piece of felt that sits inside (don't worry about
your fingers, it's protected in plastic sleeve). Open a Sharpie pan
by grabbing the pen with pliers and remove the felt core (also
contained in plastic). Cau the same amount as needed, and stick it
into a reworked plotter pen. Replace the caps on both pens. You are
done. No need to flush the old ink as the black overrode my initial
yellow. I was amazed how swift the operation was. using an xy Roland
plotter. The problem? The fiber pen is way too thick. The solution? I
may have used and old ink pen that had a flattened fiber tip. I
pulled out the fiber tip from the plotter pen and stuck it form the
other end back into the pen. The tip is sharp and probably was
designed to be used as a replacement. I can draw very nice lines now.
Added bonus? Possibly I can press the tip deeper to 'compensate' for
the PCB thickness. Mike



--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
> <stefan_trethan@g...> wrote:
>
> > maybe we should try the ink which is alerady in the cartridge?
> > why won't it work? i think it is water resistant.
> >
> > you already have the bj200 so it does not hurt to try.
> > but i bet it will not work ;-).
>
> Some of the Canon black ink is pigmented, but all of the color ink
is
> dye based and runs at the slightest hint of moisture unless on
special
> paper.
>
> It also beads up like mad on glossy non-inkjet surfaces. I've tried.
>
> > as said i see only a chance with the piezo jet,
> > and then there i see a huge load of problems coming...
>
> Hey! Pigmented inks for Epson printers are waterfast, or at least
> water resistant.
>
> The big problem is that standard inkjet inks don't stick well unless
> the surface is treated with something. And that kinda subverts
etching
> if the board has a coating.
>
> However- pigmented inks can print on glossy paper, they just take
> forever to dry. No reason you can't heat the board to dry the ink.
>
> That Epson 800 (non-color version) that I have is still sitting here
> without an ink tank. However, I am about to fit an Epson 1520 with
> pigmented inks. It has a straight through paper path and should feed
> some of the very thin double-sided PCB I have here. I'll scrub it up
> with plastic scrubber and a degreaser like Comet, as if to do toner
> transfer. Then I think I may heat the board before printing on it,
> then maybe set it on a warmer plate to dry.
>
> Most of the new Epson models like the C84 use their new resin coated
> pigmented inks that are made to work better with glossy paper, so
they
> may work better than generic pigmented inks or older Epson pigmented
> printers like the C80, C82, 1280, etc. But 3rd party pigmented inks
> are -much- cheaper.
>
> Steve

Re: Standard inkjet inks for etch resist?

2004-02-02 by Dave Mucha

> Most of the new Epson models like the C84 use their new resin coated
> pigmented inks that are made to work better with glossy paper, so
they
> may work better than generic pigmented inks or older Epson pigmented
> printers like the C80, C82, 1280, etc. But 3rd party pigmented inks
> are -much- cheaper.
>
> Steve

Makes me think of buisness cards with the thick rasied letters. They
dust the ink with something that expands when heated.

since the ink may not dry quickly, maybe there is a way to dust the
ink to enhance it, then heat the mix to cover better and create a
more resistant surface ?

My first thoughs are dusting with toner. I have some copy toner that
is loose and most anyone with an office copier can have access to
bottles of the stuff for free! As toner is applied, then parts
stick, the rest is wiped off and discarded into a catch tub. The tub
is free for the asking from most any office.

Dave

Re: [Homebrew_PCBs] inkjet way to pebo

2004-02-02 by Stefan Trethan

> Rememeber: nobody on this board shares what he learned that works.
> This is a fact of life and this is what it is. You are alone and you
> have no friends. If you hear a contrary opinion it is a decieving
> voice of marketing devil applying creative marketing techniques. If
> something sounds to good to be true... it means you found an idea for
> a new product. Test it. Piss on the whole world and trust only your
> inner voice.
>
> Mike
>


You ARE a very cynical person!
I was helped a lot by people who didn't know me at all.
So there must be some good mind left in the word or not?

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -more

2004-02-02 by Stefan Trethan

On Mon, 02 Feb 2004 05:36:48 -0000, mikezcnc <eemikez@...> wrote:


> Perosnally, the whole discussion got me to start my proect with
> plotter. Anazingly, I was able to 'retrofit' an ink pen in 5 minutes.
> I am using HP type ink pens with fiber tips which is not a great
> resolution but it might be enough for quick prototypes. Procedure:
> remove the cap of the plotter pen by prying the cap with exacto
> knife. Remove the piece of felt that sits inside (don't worry about
> your fingers, it's protected in plastic sleeve). Open a Sharpie pan
> by grabbing the pen with pliers and remove the felt core (also
> contained in plastic). Cau the same amount as needed, and stick it
> into a reworked plotter pen. Replace the caps on both pens. You are
> done. No need to flush the old ink as the black overrode my initial
> yellow. I was amazed how swift the operation was. using an xy Roland
> plotter. The problem? The fiber pen is way too thick. The solution? I
> may have used and old ink pen that had a flattened fiber tip. I
> pulled out the fiber tip from the plotter pen and stuck it form the
> other end back into the pen. The tip is sharp and probably was
> designed to be used as a replacement. I can draw very nice lines now.
> Added bonus? Possibly I can press the tip deeper to 'compensate' for
> the PCB thickness. Mike
>
>

I encountered the following problem:
all felt/nylon tips i hade had a line with dependent of moving speed.
if you move fast enough, it is thick enough. but at corners it will "tear
out".
if you move slow enough to have the same with full length it is too thick
(0,5mm)
for me.
I tried carbide tipped metal pens which should get rid oft this problem.
this pens
do not work properly on copper. the metal tip scratches off the ink with
the trailing edge,
the layer becomes too thin to act as a resist.


next problem: very slow. with all the straight short segments and rounded
sections it takes
minutes to draw a small board. in that time i can iron one easily...


I can suggest the plotter only for component outline, not for high
resolution resist.
not even throughhole quality if you ask me.

ST

Re: inkjet way to pebo

2004-02-02 by Dave Mucha

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
>
> > Rememeber: nobody on this board shares what he learned that works.
> > This is a fact of life and this is what it is. You are alone and
you
> > have no friends. If you hear a contrary opinion it is a decieving
> > voice of marketing devil applying creative marketing techniques.
If
> > something sounds to good to be true... it means you found an idea
for
> > a new product. Test it. Piss on the whole world and trust only
your
> > inner voice.
> >
> > Mike
> >
>
>
> You ARE a very cynical person!


Ditto !

I have received the highest level professional help, that would have
cost hundreds of dollars per hour, not the one hundred for a typical
high level company.

FREE !

Not once, but more than a few times.

Also, I have never knowingly given wrong or misleading advise and I
truly believe that no one who has any sulf respect would giver false
or misleading information.

I have chosen not to reveal specifics about things I have either
signed non-disclosre contracts or hard earned knoledge on things I am
working on.

But, 99.99% of the stuff you see if from people who recognise that
no one person will be able to satisfy the demands of the world, and
that the mere fact that there is a Yahoo list indicates there are
bunches of people who have a similar interest.

Etching boards is not new, nor it is hard to do, as is none of the
related processes.

All the information is available is some way or another when you are
talking about common processes.

There are technologies that people will not talk about, but there
again, it is not people offering false or wrong information.

Dave





> I was helped a lot by people who didn't know me at all.
> So there must be some good mind left in the word or not?
>
> ST

Re: Standard inkjet inks for etch resist? -more

2004-02-13 by joshdewinter

What about the idea someone had of sprinkling toner on top of the
still-wet inkjet ink as it comes outof the printer, then melting it,
say on top of a hot iron? I've been wondering about this for a
while, but I don't have an inkjet that allows for horizontal
entry/exit of the board.

-Josh

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Stefan Trethan

On Fri, 13 Feb 2004 11:09:49 -0000, joshdewinter <joshdewinter@...>
wrote:

> What about the idea someone had of sprinkling toner on top of the
> still-wet inkjet ink as it comes outof the printer, then melting it,
> say on top of a hot iron? I've been wondering about this for a
> while, but I don't have an inkjet that allows for horizontal
> entry/exit of the board.
>
> -Josh

I think this is a lot of effort - compared to the toner transfer.
and i doubt the results get any better.
but i would like to hear how it goes if someone makes the experiment too...


ST

Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Phil

I suspect he doesn't have easy access to a laser printer or
photocopier. getting a little toner and dusting with it will be a
lot cheaper than buying a printer and definitely easier than making a
bunch of trips to kinkos or where-ever. I wonder what kind of
quality he will see with this (uneven distribution of toner and such).

still, I agree that this seems like more work and definitely messier.

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Fri, 13 Feb 2004 11:09:49 -0000, joshdewinter
<joshdewinter@y...>
> wrote:
>
> > What about the idea someone had of sprinkling toner on top of the
> > still-wet inkjet ink as it comes outof the printer, then melting
it,
> > say on top of a hot iron? I've been wondering about this for a
> > while, but I don't have an inkjet that allows for horizontal
> > entry/exit of the board.
> >
> > -Josh
>
> I think this is a lot of effort - compared to the toner transfer.
> and i doubt the results get any better.
> but i would like to hear how it goes if someone makes the
experiment too...
>
>
> ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Stefan Trethan

On Fri, 13 Feb 2004 16:14:44 -0000, Phil <phil1960us@...> wrote:

> I suspect he doesn't have easy access to a laser printer or
> photocopier. getting a little toner and dusting with it will be a
> lot cheaper than buying a printer and definitely easier than making a
> bunch of trips to kinkos or where-ever. I wonder what kind of
> quality he will see with this (uneven distribution of toner and such).
>
> still, I agree that this seems like more work and definitely messier.
>

all i say is ebay.

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Tony Harris

> On Fri, 13 Feb 2004 16:14:44 -0000, Phil <phil1960us@...> wrote:
>
> > I suspect he doesn't have easy access to a laser printer or
> > photocopier. getting a little toner and dusting with it will be a
> > lot cheaper than buying a printer and definitely easier than making a
> > bunch of trips to kinkos or where-ever. I wonder what kind of
> > quality he will see with this (uneven distribution of toner and such).
> >
> > still, I agree that this seems like more work and definitely messier.
> >
>
> all i say is ebay.
>
> ST
>

Agreed - I bought a 4m+ off of ebay in awesome shape for only like $150 w/
shipping included and a toner cart with >50% life left.... I saw some for
less, but this one was in like new shape and had the ethernet card and extra
ram.

-Tony

Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Phil

lol, 150 vs a bottle of toner.... I rest my case.


--- In Homebrew_PCBs@yahoogroups.com, "Tony Harris" <tony@e...> wrote:
>
>
> > On Fri, 13 Feb 2004 16:14:44 -0000, Phil <phil1960us@y...> wrote:
> >
> > > I suspect he doesn't have easy access to a laser printer or
> > > photocopier. getting a little toner and dusting with it will
be a
> > > lot cheaper than buying a printer and definitely easier than
making a
> > > bunch of trips to kinkos or where-ever. I wonder what kind of
> > > quality he will see with this (uneven distribution of toner and
such).
> > >
> > > still, I agree that this seems like more work and definitely
messier.
> > >
> >
> > all i say is ebay.
> >
> > ST
> >
>
> Agreed - I bought a 4m+ off of ebay in awesome shape for only like
$150 w/
> shipping included and a toner cart with >50% life left.... I saw
some for
> less, but this one was in like new shape and had the ethernet card
and extra
> ram.
>
> -Tony

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Stefan Trethan

150 (which was no good deal) vs a bottle of toner.
PLUS you get a reasonable printer for office work.
not such a inkjet scrap.

ST

And certain bottles of toner cost much more..
(for my HP IIID 150 to 200 EUR in the shop -
15 eur for two at ebay)


> lol, 150 vs a bottle of toner.... I rest my case.
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Tony Harris" <tony@e...> wrote:
>>
>>
>> > On Fri, 13 Feb 2004 16:14:44 -0000, Phil <phil1960us@y...> wrote:
>> >
>> > > I suspect he doesn't have easy access to a laser printer or
>> > > photocopier. getting a little toner and dusting with it will
> be a
>> > > lot cheaper than buying a printer and definitely easier than
> making a
>> > > bunch of trips to kinkos or where-ever. I wonder what kind of
>> > > quality he will see with this (uneven distribution of toner and
> such).
>> > >
>> > > still, I agree that this seems like more work and definitely
> messier.
>> > >
>> >
>> > all i say is ebay.
>> >
>> > ST
>> >
>>
>> Agreed - I bought a 4m+ off of ebay in awesome shape for only like
> $150 w/
>> shipping included and a toner cart with >50% life left.... I saw
> some for
>> less, but this one was in like new shape and had the ethernet card
> and extra
>> ram.
>>
>> -Tony
>
>
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
>
>
>

Re: Standard inkjet inks for etch resist? -more

2004-02-13 by Phil

each to his own. some people dont want printers cluttering up their
house. not sure why everyone HAS to own a laser printer. I much
prefer a color ink jet. but then this is about PCB making so its off
topic.

-- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> 150 (which was no good deal) vs a bottle of toner.
> PLUS you get a reasonable printer for office work.
> not such a inkjet scrap.
>
> ST
>
> And certain bottles of toner cost much more..
> (for my HP IIID 150 to 200 EUR in the shop -
> 15 eur for two at ebay)
>
>
> > lol, 150 vs a bottle of toner.... I rest my case.
> >
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "Tony Harris" <tony@e...>
wrote:
> >>
> >>
> >> > On Fri, 13 Feb 2004 16:14:44 -0000, Phil <phil1960us@y...>
wrote:
> >> >
> >> > > I suspect he doesn't have easy access to a laser printer or
> >> > > photocopier. getting a little toner and dusting with it will
> > be a
> >> > > lot cheaper than buying a printer and definitely easier than
> > making a
> >> > > bunch of trips to kinkos or where-ever. I wonder what kind
of
> >> > > quality he will see with this (uneven distribution of toner
and
> > such).
> >> > >
> >> > > still, I agree that this seems like more work and definitely
> > messier.
> >> > >
> >> >
> >> > all i say is ebay.
> >> >
> >> > ST
> >> >
> >>
> >> Agreed - I bought a 4m+ off of ebay in awesome shape for only
like
> > $150 w/
> >> shipping included and a toner cart with >50% life left.... I saw
> > some for
> >> less, but this one was in like new shape and had the ethernet
card
> > and extra
> >> ram.
> >>
> >> -Tony
> >
> >
> >
> >
> > Be sure to visit the group home and check for new Bookmarks and
files:
> > http://groups.yahoo.com/group/Homebrew_PCBs
> > Yahoo! Groups Links
> >
> >
> >
> >
> >

Re: Standard inkjet inks for etch resist? -[OT]

2004-02-13 by wheedal99

--- In Homebrew_PCBs@yahoogroups.com, "Phil"
> each to his own. some people dont want printers cluttering up
their
> house.

Hehe, you sound like my wife. Until recently, I found it just as
cheap to buy a new (last years model lexmark/HP) printer (inkjet) as
it was to buy new color cartridges. The cannon inkjet carts can be
had for pretty cheap online now; so I've slowed down on printer
purchases.

My laser printer is still the same one I've used for the last 6
years --just finishing my 2nd cartridge after a *lot* of use. I
think you can get into a laser printer pretty cheap these days. I've
seen HP 6L's and the like at the thrift shops for $10-$25; however
most of the cartridges are empty so you'd be close to $50 - $60 to
get a usable unit. However, Office Max - Staples - Office Depot has
a sale/rebate offer on the low end minolta / samsung printers almost
every other week --~$80 after mail in rebates for 1200dpi (but
usually with half-filled cartridges). I still haven't bit on that
yet --maybe after this 5L of mine finally spends its cartridge.

All that said, I'm not sure the wet ink/toner trick would work very
well. Most inkjet inks are designed to setup and dry very quickly.

Maybe something along the lines of direct inkjet resist thread --
diluted floor wax? --Anyone come up with something workable? I've
got a few printers that could be sacrificed on the alter of
science. --too bad the print heads dry up so fast.

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -[OT]

2004-02-14 by John Greene

Hi,
I have a HP 5L and I bought a refill kit ( a bottle of toner) on eBay for $10 or $15. So this would be a cheap source for toner to try. By the way it is a simple process to refill your own cartridge. My 5L works just like new with my "do it yourself" refill. The guy who sells it has a good write-up on how to get the job done.

Jack
----- Original Message -----
From: wheedal99
To: Homebrew_PCBs@yahoogroups.com
Sent: Friday, February 13, 2004 3:43 PM
Subject: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -[OT]


--- In Homebrew_PCBs@yahoogroups.com, "Phil"
> each to his own. some people dont want printers cluttering up
their
> house.

Hehe, you sound like my wife. Until recently, I found it just as
cheap to buy a new (last years model lexmark/HP) printer (inkjet) as
it was to buy new color cartridges. The cannon inkjet carts can be
had for pretty cheap online now; so I've slowed down on printer
purchases.

My laser printer is still the same one I've used for the last 6
years --just finishing my 2nd cartridge after a *lot* of use. I
think you can get into a laser printer pretty cheap these days. I've
seen HP 6L's and the like at the thrift shops for $10-$25; however
most of the cartridges are empty so you'd be close to $50 - $60 to
get a usable unit. However, Office Max - Staples - Office Depot has
a sale/rebate offer on the low end minolta / samsung printers almost
every other week --~$80 after mail in rebates for 1200dpi (but
usually with half-filled cartridges). I still haven't bit on that
yet --maybe after this 5L of mine finally spends its cartridge.

All that said, I'm not sure the wet ink/toner trick would work very
well. Most inkjet inks are designed to setup and dry very quickly.

Maybe something along the lines of direct inkjet resist thread --
diluted floor wax? --Anyone come up with something workable? I've
got a few printers that could be sacrificed on the alter of
science. --too bad the print heads dry up so fast.






Be sure to visit the group home and check for new Bookmarks and files:
http://groups.yahoo.com/group/Homebrew_PCBs



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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -[OT]

2004-02-14 by Stefan Trethan

On Fri, 13 Feb 2004 17:19:05 -0700, John Greene <greeneaz@...>
wrote:

> Hi,
> I have a HP 5L and I bought a refill kit ( a bottle of toner) on
> eBay for $10 or $15. So this would be a cheap source for toner to try.
> By the way it is a simple process to refill your own cartridge. My 5L
> works just like new with my "do it yourself" refill. The guy who sells
> it has a good write-up on how to get the job done.
>

I agree, especially first-time-empty cartridges will certainly live
through some
refills. (remanufactured cartridges are nothing else...)
But my IIID is so old i get the whole cartridges cheaper at ebay.
You might also want to look for a "used toner" from a copier.
this is stored inside the machine in some container.
if it is not too close to the fuser (which it is in some richo machines)
it is still a fine dust. and you can't put it in again, so you may get it
for free.
I would have several bags of toner laying around, stored in plastic bags
when emptying
a copier for repair. i would give it to you for free but i fear the
mailing cost is too
high.


ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist? -[OT]

2004-02-14 by pebo festus

i have tryed the regular ink, its got alcohal and
glycerine added to water and color pigments. the ink
dont dry enough to make it water resistant. glycerine
doesnt set up or dry out, even tryed to bake it. the
boiling point is somewhere around 500 deg f. would
ruin the board. just my 2 cents. am looking at acrylic
black paint mixed with windex and a touch of glycol.
(glycol to keep the jet holes from drying out and
stopping up.)THERE HAS TO BE A BETTER WAY.
mebo



--- wheedal99 <wheedal@...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "Phil"
> > each to his own. some people dont want printers
> cluttering up
> their
> > house.
>
> Hehe, you sound like my wife. Until recently, I
> found it just as
> cheap to buy a new (last years model lexmark/HP)
> printer (inkjet) as
> it was to buy new color cartridges. The cannon
> inkjet carts can be
> had for pretty cheap online now; so I've slowed down
> on printer
> purchases.
>
> My laser printer is still the same one I've used for
> the last 6
> years --just finishing my 2nd cartridge after a
> *lot* of use. I
> think you can get into a laser printer pretty cheap
> these days. I've
> seen HP 6L's and the like at the thrift shops for
> $10-$25; however
> most of the cartridges are empty so you'd be close
> to $50 - $60 to
> get a usable unit. However, Office Max - Staples -
> Office Depot has
> a sale/rebate offer on the low end minolta / samsung
> printers almost
> every other week --~$80 after mail in rebates for
> 1200dpi (but
> usually with half-filled cartridges). I still
> haven't bit on that
> yet --maybe after this 5L of mine finally spends its
> cartridge.
>
> All that said, I'm not sure the wet ink/toner trick
> would work very
> well. Most inkjet inks are designed to setup and
> dry very quickly.
>
> Maybe something along the lines of direct inkjet
> resist thread --
> diluted floor wax? --Anyone come up with something
> workable? I've
> got a few printers that could be sacrificed on the
> alter of
> science. --too bad the print heads dry up so fast.
>
>
>
>
>


__________________________________
Do you Yahoo!?
Yahoo! Finance: Get your refund fast by filing online.
http://taxes.yahoo.com/filing.html

Re: Standard inkjet inks for etch resist? - pigments and alternatives

2004-02-16 by Dave Mucha

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> i have tryed the regular ink, its got alcohal and
> glycerine added to water and color pigments. the ink
> dont dry enough to make it water resistant. glycerine
> doesnt set up or dry out, even tryed to bake it. the
> boiling point is somewhere around 500 deg f. would
> ruin the board. just my 2 cents. am looking at acrylic
> black paint mixed with windex and a touch of glycol.
> (glycol to keep the jet holes from drying out and
> stopping up.)THERE HAS TO BE A BETTER WAY.
> mebo

The first thing I think of is spray paint. It is a lacquor and very
thin. It should dry within an hour or so of spraying and the
cartridge would probably need to be soaked in laquor thinner when not
in use.

Dave

Re: Standard inkjet inks for etch resist?

2004-02-17 by rmustakos

Hi
I'm new here (not a lurker), but I'm actually looking into two
things right now, and a backup for them. If any of you have any
information on them, or know where I can get information, I'd
appreciate it.

A company Xeaia or something like that has conductive inks for inkjet
printers. If this works, and you can get an insulating ink as well,
you can build circuits by printing them on your inkjet. I have not
heard back from them yet, so I don't know if they are interested in
our market, or if they require proprietary printers.

and I'm trying to find out if anyone makes a screen printer mask
inkjet ink, so that a negative of the circuit can be printed right
onto the screen, and then to build up (additive construction) the
circuits using conductive inks or pastes using screen printing

If none of these work, I heard (at least 3 or 4 years ago) about a
techniques where you print the negative right onto a fiberglass sheet,
then squeegee the conductive paste into it. Additional layers for
vias are built up by printing toner over areas where you don't wan't
through holes, printing another layer that is a negative oof the vias
and putting more conductor over it.

Sounded interesting, fairly easy, clean and doesn't waste anything (but
toner). But I never heard anything else about it, never owned a laser
printer (only inkjets), and don't know anyone who tried it.

Again, any information would be appreciated.
Thanks,
Richard
>
> All that said, I'm not sure the wet ink/toner trick would work very
> well. Most inkjet inks are designed to setup and dry very quickly. >
> Maybe something along the lines of direct inkjet resist thread --
> diluted floor wax? --Anyone come up with something workable? I've
> got a few printers that could be sacrificed on the alter of
> science. --too bad the print heads dry up so fast.
>
FYI,
So far, no joy on emulsion inks for inkjet printers.
Richard

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-02-17 by Leon Heller

----- Original Message -----
From: "rmustakos" <rmustakos@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, February 17, 2004 4:24 PM
Subject: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?


> Hi
> I'm new here (not a lurker), but I'm actually looking into two
> things right now, and a backup for them. If any of you have any
> information on them, or know where I can get information, I'd
> appreciate it.
>
> A company Xeaia or something like that has conductive inks for inkjet
> printers. If this works, and you can get an insulating ink as well,
> you can build circuits by printing them on your inkjet. I have not
> heard back from them yet, so I don't know if they are interested in
> our market, or if they require proprietary printers.

I contacted them a few months ago. The special print head needed for their
ink is *very* expensive (you need to buy a complete development system) and
the ink needs to be cured with UV directly after it is applied. I estimated
that it would cost me about 5,000 GBP to build a prototype using their ink.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

Re: Standard inkjet inks for etch resist?

2004-03-02 by mikezcnc

I heard from someone making conductive inks and they don't sell it to
public. They want to sell ypou a massive machine that uses that ink,
instead.
As far as floor wax goes: not a good idea. Stuff dries out and clogs
up a printer. Solvent? Ammonia, another alergenic chemical taht will
make you look like a spotted owl. Bottom line is: no conductive inks
are available on the market. Yet although they are available to
select customers. People print DNA's, resistors but we have no access
to these technologies.
Screen printing conductive material? Probably the same situation.
Mike

--- In Homebrew_PCBs@yahoogroups.com, "rmustakos" <rmustakos@a...>
wrote:
> Hi
> I'm new here (not a lurker), but I'm actually looking into two
> things right now, and a backup for them. If any of you have any
> information on them, or know where I can get information, I'd
> appreciate it.
>
> A company Xeaia or something like that has conductive inks for
inkjet
> printers. If this works, and you can get an insulating ink as well,
> you can build circuits by printing them on your inkjet. I have not
> heard back from them yet, so I don't know if they are interested in
> our market, or if they require proprietary printers.
>
> and I'm trying to find out if anyone makes a screen printer mask
> inkjet ink, so that a negative of the circuit can be printed right
> onto the screen, and then to build up (additive construction) the
> circuits using conductive inks or pastes using screen printing
>
> If none of these work, I heard (at least 3 or 4 years ago) about a
> techniques where you print the negative right onto a fiberglass
sheet,
> then squeegee the conductive paste into it. Additional layers for
> vias are built up by printing toner over areas where you don't
wan't
> through holes, printing another layer that is a negative oof the
vias
> and putting more conductor over it.
>
> Sounded interesting, fairly easy, clean and doesn't waste anything
(but
> toner). But I never heard anything else about it, never owned a
laser
> printer (only inkjets), and don't know anyone who tried it.
>
> Again, any information would be appreciated.
> Thanks,
> Richard
> >
> > All that said, I'm not sure the wet ink/toner trick would work
very
> > well. Most inkjet inks are designed to setup and dry very
quickly. >
> > Maybe something along the lines of direct inkjet resist thread -
-
> > diluted floor wax? --Anyone come up with something workable?
I've
> > got a few printers that could be sacrificed on the alter of
> > science. --too bad the print heads dry up so fast.
> >
> FYI,
> So far, no joy on emulsion inks for inkjet printers.
> Richard

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-02 by Stefan Trethan

On Tue, 02 Mar 2004 19:22:41 -0000, mikezcnc <eemikez@...> wrote:

> I heard from someone making conductive inks and they don't sell it to
> public. They want to sell ypou a massive machine that uses that ink,
> instead.
> As far as floor wax goes: not a good idea. Stuff dries out and clogs
> up a printer. Solvent? Ammonia, another alergenic chemical taht will
> make you look like a spotted owl. Bottom line is: no conductive inks
> are available on the market. Yet although they are available to
> select customers. People print DNA's, resistors but we have no access
> to these technologies.
> Screen printing conductive material? Probably the same situation.
> Mike


Could you solder on this stuff?

ST

Re: Standard inkjet inks for etch resist?

2004-03-04 by mikezcnc

Stefan,

Yes. It is a replacement technology for existing wet-type. On a
second thought, I am not sure if they don't need a second step
similar to our 'tinning process'. Here's a website in Italy:
http://www.new-system.com/ Talking to the ink company in GB is like
talking to a bride that just won Miss Universe contest...

www.avecia.com I would love to put them out of business.


Mike


-- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Tue, 02 Mar 2004 19:22:41 -0000, mikezcnc <eemikez@c...> wrote:
>
> > I heard from someone making conductive inks and they don't sell
it to
> > public. They want to sell ypou a massive machine that uses that
ink,
> > instead.
> > As far as floor wax goes: not a good idea. Stuff dries out and
clogs
> > up a printer. Solvent? Ammonia, another alergenic chemical taht
will
> > make you look like a spotted owl. Bottom line is: no conductive
inks
> > are available on the market. Yet although they are available to
> > select customers. People print DNA's, resistors but we have no
access
> > to these technologies.
> > Screen printing conductive material? Probably the same situation.
> > Mike
>
>
> Could you solder on this stuff?
>
> ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-04 by Stefan Trethan

On Thu, 04 Mar 2004 15:11:47 -0000, mikezcnc <eemikez@...> wrote:

> Stefan,
>
> Yes. It is a replacement technology for existing wet-type. On a
> second thought, I am not sure if they don't need a second step
> similar to our 'tinning process'. Here's a website in Italy:
> http://www.new-system.com/ Talking to the ink company in GB is like
> talking to a bride that just won Miss Universe contest...
>
> www.avecia.com I would love to put them out of business.
>
>
> Mike
>

Well, at least the avecia.com homepage seems to be out of business at the
moment ;-).

I couldn't find any reference to direct pattern printing, only resist and
soldermask and stuff
on the italian page.


I somehow can't imagine how it should work, i mean you can't print
copper....


let's wait some 20 years or so and see how it worked out.
maybe we do not build any conventional circuit boards any more, maybe by
then everything
is done on one integrated circit like thing...

ST

Re: Standard inkjet inks for etch resist?

2004-03-04 by James RM

The Following Patent might be helpful

US5,270,368
Piezo inkjet inks and methods for making and using same
3M Innovative Properties Company

An organic solvent-based piezo ink is disclosed having (a) a
particulate material; (b) a binder; (c) a plasticizer; (d) an organic
solvent; (e) a fluorochemical surfactant; and (f) an antifoaming
agent including an oil. Preferably, the particulate material is
provided by an antifoaming silicone oil. Optionally, light and heat
stabilizers are also included. Methods of making and using this
ink are also disclosed.

http://164.195.100.11/netacgi/nph-Parser?
sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-adv.
htm&r=9&f=G&l=50&d=CR93&S1=5,270,368.UREF.
&OS=ref/5,270,368&RS=REF/5,270,368

Regards
James

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-04 by Alan King

mikezcnc wrote:

> Stefan,
>
> Yes. It is a replacement technology for existing wet-type. On a
> second thought, I am not sure if they don't need a second step
> similar to our 'tinning process'. Here's a website in Italy:
> http://www.new-system.com/ Talking to the ink company in GB is like
> talking to a bride that just won Miss Universe contest...
>
> www.avecia.com I would love to put them out of business.
>
>
> Mike


Note there are brochures for the other two, but not the board printer. It is
not the first or likely the last attempt at one of these, and they tend to fail
in the marketplace from one undesireable quality or another. Even if it works
flawlessly, it has to compete as well, and the large scale inertia is a tough
thing to overcome. Similar to trying to dent a mountain by shooting BB's at it,
it has to be one heck of a BB to even make an impression and become more than a
tiny niche product..

In other words, wish them good luck, but at the same time keep an eye out in
the news for their obituary within the next year or two. The other two look
more practical though, so they may stay in with those at least even if the other
doesn't catch on.

There are high end versions of some normal printers like Epson that use
similar inks etc. Have to wonder if they aren't the guts from a wider
distribution printer with their own controller and extra hardware.

Alan

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-04 by Jeremy Taylor

Although I'm not interested in this technology, I'd thought I'd drop a
teaser
Minwax polycrylic is a water soluble polymer, It's thin-able with water, and
dries to a chemically resistant and VERY hard surface.
The only possible problems I see with it as an etch resist, are 1: it may
not adhere to copper, and two if it does, you might not ever get it off.

JT

----- Original Message -----
From: "Alan King" <alan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, March 04, 2004 11:34 AM
Subject: Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?


> mikezcnc wrote:
>
> > Stefan,
> >
> > Yes. It is a replacement technology for existing wet-type. On a
> > second thought, I am not sure if they don't need a second step
> > similar to our 'tinning process'. Here's a website in Italy:
> > http://www.new-system.com/ Talking to the ink company in GB is like
> > talking to a bride that just won Miss Universe contest...
> >
> > www.avecia.com I would love to put them out of business.
> >
> >
> > Mike
>
>
> Note there are brochures for the other two, but not the board printer.
It is
> not the first or likely the last attempt at one of these, and they tend to
fail
> in the marketplace from one undesireable quality or another. Even if it
works
> flawlessly, it has to compete as well, and the large scale inertia is a
tough
> thing to overcome. Similar to trying to dent a mountain by shooting BB's
at it,
> it has to be one heck of a BB to even make an impression and become more
than a
> tiny niche product..
>
> In other words, wish them good luck, but at the same time keep an eye
out in
> the news for their obituary within the next year or two. The other two
look
> more practical though, so they may stay in with those at least even if the
other
> doesn't catch on.
>
> There are high end versions of some normal printers like Epson that use
> similar inks etc. Have to wonder if they aren't the guts from a wider
> distribution printer with their own controller and extra hardware.
>
> Alan
>
>
>
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
>
>
>

Re: Standard inkjet inks for etch resist?

2004-03-05 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "Jeremy Taylor" <jt@j...> wrote:
> Although I'm not interested in this technology, I'd thought I'd drop a
> teaser
> Minwax polycrylic is a water soluble polymer, It's thin-able with
water, and
> dries to a chemically resistant and VERY hard surface.
> The only possible problems I see with it as an etch resist, are 1:
it may
> not adhere to copper, and two if it does, you might not ever get it off.
>
> JT
>

Oohh! There are two from Minwax:

http://www.minwax.com/products/protective/polycrylic.cfm

http://www.minwax.com/products/protective/floor-poly.cfm

Steve

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-05 by pebo festus

hey---this looks promising,i bought some MOP&GLOW,
which has some teflon in it. info on the container
states that it can be cleaned off the board(or floor)
with lysol and ammonia, 1 cup each to 1/2 gallon of
water.
I put a small dot on a pcb and it spread a small
amount but it dryed hard, tryed to remove it by
scraping with a screw driver, it came off but not
easy, i had not cleaned the board and it adhered to
it.looks like its time to emty an ink carterdge and
refill with mimwax. may have to add a small amt of red
food dye containing alcohol to the mimwax.
mebo





--- Steve <alienrelics@...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "Jeremy
> Taylor" <jt@j...> wrote:
> > Although I'm not interested in this technology,
> I'd thought I'd drop a
> > teaser
> > Minwax polycrylic is a water soluble polymer, It's
> thin-able with
> water, and
> > dries to a chemically resistant and VERY hard
> surface.
> > The only possible problems I see with it as an
> etch resist, are 1:
> it may
> > not adhere to copper, and two if it does, you
> might not ever get it off.
> >
> > JT
> >
>
> Oohh! There are two from Minwax:
>
>
http://www.minwax.com/products/protective/polycrylic.cfm
>
>
http://www.minwax.com/products/protective/floor-poly.cfm
>
> Steve
>
>


__________________________________
Do you Yahoo!?
Yahoo! Search - Find what you�re looking for faster
http://search.yahoo.com

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-05 by Stefan Trethan

On Fri, 5 Mar 2004 13:28:09 -0800 (PST), pebo festus <mebo31@...>
wrote:

> hey---this looks promising,i bought some MOP&GLOW,
> which has some teflon in it. info on the container
> states that it can be cleaned off the board(or floor)
> with lysol and ammonia, 1 cup each to 1/2 gallon of
> water.
> I put a small dot on a pcb and it spread a small
> amount but it dryed hard, tryed to remove it by
> scraping with a screw driver, it came off but not
> easy, i had not cleaned the board and it adhered to
> it.looks like its time to emty an ink carterdge and
> refill with mimwax. may have to add a small amt of red
> food dye containing alcohol to the mimwax.
> mebo


DO IT, GO!

i look forward to the results for a while now.
I still have my doubts but maybe in the end it works.
the resist pattern printers i see on the web look certainly
like inkjets.....

i think it is only a question of the printing head.
i have wasted my time with a bubblejet, maybe if i had
bought a piezo for it i would now already print my boards this
way.

ST

Re: Standard inkjet inks for etch resist?

2004-03-05 by pebo festus

I have a piezo allready converted to flatbed, but dont have the ink
carterges, have them ordered, may call back and see if the co i
ordered from would sell emty carterges, you are right steve-the
bubble jet is out as far as i am concerned.will post when and if
progress is made.
mebo






--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Fri, 5 Mar 2004 13:28:09 -0800 (PST), pebo festus <mebo31@y...>
> wrote:
>
> > hey---this looks promising,i bought some MOP&GLOW,
> > which has some teflon in it. info on the container
> > states that it can be cleaned off the board(or floor)
> > with lysol and ammonia, 1 cup each to 1/2 gallon of
> > water.
> > I put a small dot on a pcb and it spread a small
> > amount but it dryed hard, tryed to remove it by
> > scraping with a screw driver, it came off but not
> > easy, i had not cleaned the board and it adhered to
> > it.looks like its time to emty an ink carterdge and
> > refill with mimwax. may have to add a small amt of red
> > food dye containing alcohol to the mimwax.
> > mebo
>
>
> DO IT, GO!
>
> i look forward to the results for a while now.
> I still have my doubts but maybe in the end it works.
> the resist pattern printers i see on the web look certainly
> like inkjets.....
>
> i think it is only a question of the printing head.
> i have wasted my time with a bubblejet, maybe if i had
> bought a piezo for it i would now already print my boards this
> way.
>
> ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-05 by Stefan Trethan

On Fri, 05 Mar 2004 21:41:00 -0000, pebo festus <mebo31@...> wrote:

> I have a piezo allready converted to flatbed, but dont have the ink
> carterges, have them ordered, may call back and see if the co i
> ordered from would sell emty carterges, you are right steve-the
> bubble jet is out as far as i am concerned.will post when and if
> progress is made.
> mebo
>
>
>

I would quite like to see the simple floor polish be as useable
as the damn avecia ink....

how did you convert the printer? which printer, pictures please if
possible.

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-05 by Alan King

Stefan Trethan wrote:
> On Fri, 5 Mar 2004 13:28:09 -0800 (PST), pebo festus <mebo31@...>
> wrote:
>
>
>>hey---this looks promising,i bought some MOP&GLOW,
>>which has some teflon in it. info on the container

>
> DO IT, GO!
>
> i look forward to the results for a while now.
> I still have my doubts but maybe in the end it works.
> the resist pattern printers i see on the web look certainly
> like inkjets.....
>
> i think it is only a question of the printing head.
> i have wasted my time with a bubblejet, maybe if i had
> bought a piezo for it i would now already print my boards this
> way.
>
> ST
>


Very same things that make it a good resist are going to make it great at
clogging the heads though, and unlike the HP type the piezos usually have the
heads seperate instead of in the cartridge so it'll wreck the printer. That's
part of why most of the workable resist systems have a curing ink instead of one
that dries on it's own. Still if something will cut it then maybe it can be
thinned to the point of working ok.

Alan

Re: Standard inkjet inks for etch resist?

2004-03-06 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> I have a piezo allready converted to flatbed, but dont have the ink
> carterges, have them ordered, may call back and see if the co i
> ordered from would sell emty carterges, you are right steve-the
> bubble jet is out as far as i am concerned.will post when and if
> progress is made.
> mebo

Empty Epson ink tanks available here:
http://www.personalizedsupplies.com/emptyvirgintanks.htm

Steve

Re: Standard inkjet inks for etch resist?

2004-03-06 by Steve

--- In Homebrew_PCBs@yahoogroups.com, Alan King <alan@n...> wrote:

> > On Fri, 5 Mar 2004 13:28:09 -0800 (PST), pebo festus <mebo31@y...>
> > wrote:
> >
> >
> >>hey---this looks promising,i bought some MOP&GLOW,
> >>which has some teflon in it. info on the container
>
...
> Very same things that make it a good resist are going to make it
great at
> clogging the heads though, and unlike the HP type the piezos usually
have the
> heads seperate instead of in the cartridge so it'll wreck the
printer. That's
> part of why most of the workable resist systems have a curing ink
instead of one
> that dries on it's own. Still if something will cut it then maybe
it can be
> thinned to the point of working ok.

Very good points.

What about that UV cured ink that is in the latest wide format
printers? My understanding is the ink does not dry until hit with a UV
light source as it comes out from under the print-head, and after UV
hardened it is waterproof.

Again, it becomes a question of whether or not it'll work in an Epson
printer. But, there are tons of Epson 400's and 600's around here in
thrift stores. Have to convert them to straight through and take out
the pizza wheels.

Steve

Re: Standard inkjet inks for etch resist?

2004-03-06 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...> wrote:
...
> What about that UV cured ink that is in the latest wide format
> printers? My understanding is the ink does not dry until hit with a UV
> light source as it comes out from under the print-head, and after UV
> hardened it is waterproof.
>
> Again, it becomes a question of whether or not it'll work in an Epson
> printer. But, there are tons of Epson 400's and 600's around here in
> thrift stores. Have to convert them to straight through and take out
> the pizza wheels.

This site:
<http://www.wide-format-printers.org/Mimaki_wideformatprinterreviews/Mimaki_piezo_wide_format.html>
reports that Mimaki, Roland, and Mutoh printers use Epson piezo heads.
Both Mimaki and Mutoh printers come in models that take solvent inks,
and UV solvent inks.

From this I'd infer a good possibility that the smaller Epson desktop
printers may handle those UV solvent inks. Maybe.

Keeping in mind that the solvent inks may give off poisonous fumes in
operation.

<http://www.wide-format-printers.org/Mutoh_Albatross_Mutoh_Tomahawk/Mutoh%20Tomahawk_solvent_ink.htm>

Based on this page:
<http://www.abetterink.com/Mimaki%20TX2.htm>
I'd say those Epson heads are pretty tough.

More info on UV Cure inks:
http://www.screenweb.com/inks/cont/inkupdate03.html

Steve

Re: Standard inkjet inks for etch resist?

2004-03-06 by Marcel van Lieshout

Anyone ever tried this?

http://www.parelecusa.com/parelec3/products/Images/hdic.pdf

A quote:
<quote>
Parmod VLT inks and pastes - which include silver, copper
and a variety of other metal compositions - are quickly
and easily applied to industry-standard substrates such
as silicon, polyimide and FR-4, by printing processes such
as screen printing, laser mill and fill, computer-controlled
micro-dispensing, and ink-jet printing.The result is fully
additive circuits and interconnects.
</quote>

Don't know anything about it (cost, printertype, etc), just found the site by accident :-)

Marcel

Re: Standard inkjet inks for etch resist?

2004-03-07 by pygar2

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> hey---this looks promising,i bought some MOP&GLOW,
> which has some teflon in it. info on the container
> states that it can be cleaned off the board(or floor)
> with lysol and ammonia, 1 cup each to 1/2 gallon of
> water.

I'm new here, but I have to ask... has anyone tried using Future?
It's a thin acrylic "paint", not a wax. It can be thinned with water
or alcohol. It can be colored with food coloring and presumably
inkjet ink. And it dissolves with ammonia or simple Windex.

In other countries, a similar product is called Johnson's Klear, or
variations on that name.

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-07 by pebo festus

thanks pygar, i am keeping all the good sugestions and
will try most of them,have some emty carts coming. NOW
if i can keep my epson printer head clear(not stopped
up) and the right medium goes on the board like it
should(not spread out or bead up)then we are into the
pcb printing business.




--- pygar2 <pygar2@...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, pebo festus
> <mebo31@y...> wrote:
> > hey---this looks promising,i bought some MOP&GLOW,
> > which has some teflon in it. info on the container
> > states that it can be cleaned off the board(or
> floor)
> > with lysol and ammonia, 1 cup each to 1/2 gallon
> of
> > water.
>
> I'm new here, but I have to ask... has anyone tried
> using Future?
> It's a thin acrylic "paint", not a wax. It can be
> thinned with water
> or alcohol. It can be colored with food coloring and
> presumably
> inkjet ink. And it dissolves with ammonia or simple
> Windex.
>
> In other countries, a similar product is called
> Johnson's Klear, or
> variations on that name.
>
>


__________________________________
Do you Yahoo!?
Yahoo! Search - Find what you�re looking for faster
http://search.yahoo.com

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-07 by Stefan Trethan

>
> I'm new here, but I have to ask... has anyone tried using Future?
> It's a thin acrylic "paint", not a wax. It can be thinned with water
> or alcohol. It can be colored with food coloring and presumably
> inkjet ink. And it dissolves with ammonia or simple Windex.
>
> In other countries, a similar product is called Johnson's Klear, or
> variations on that name.
>
>

"Bona Parkett polish" is the same, i have tried it with a bubblejet and
it didn't work.
i expect better results from piezo.

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-08 by Bill Maxwell

I am relatively new to this group and apologise if this possibility has been
mentioned previously. Some 10 years ago, a group of local amateur radio
operators, all working in a Government communications laboratory, were
having considerable success in printing PCB patterns directly onto the
copper, using the ink used to print logos, slogans etc on to T-shirts. They
put the ink into the pens of the old flat-bed plotters. The laboratory has
long since closed and the group dispersed, so I cannot now follow that idea
up. Has anybody in this group tried T-shirt ink in an inkjet printer?

Bill
----- Original Message -----
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Monday, March 08, 2004 2:50 AM
Subject: Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?


>
> >
> > I'm new here, but I have to ask... has anyone tried using Future?
> > It's a thin acrylic "paint", not a wax. It can be thinned with water
> > or alcohol. It can be colored with food coloring and presumably
> > inkjet ink. And it dissolves with ammonia or simple Windex.
> >
> > In other countries, a similar product is called Johnson's Klear, or
> > variations on that name.
> >
> >
>
> "Bona Parkett polish" is the same, i have tried it with a bubblejet and
> it didn't work.
> i expect better results from piezo.
>
> ST
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
>
>
>

Re: Standard inkjet inks for etch resist?

2004-03-08 by pebo festus

ok---i uploaded 2 pics of the converted epson color stylus 880
printer, waiting on the carts to come in, have a dedicated computer
ready. will order empty black carts today. if this doesnt work---
back to drawing board.
mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?

2004-03-08 by Stefan Trethan

On Mon, 08 Mar 2004 16:20:58 -0000, pebo festus <mebo31@...> wrote:

> ok---i uploaded 2 pics of the converted epson color stylus 880
> printer, waiting on the carts to come in, have a dedicated computer
> ready. will order empty black carts today. if this doesnt work---
> back to drawing board.
> mebo


Good luck....

(i really don't understand why you insisted on the dedicated
computer but if you like it that way.... )


try to get several carts (i hope they are cheap).
then you can try different inks.

st

Re: Standard inkjet inks for etch resist?

2004-03-08 by Steve

There are quite a few kind of "tshirt inks", all with different
characteristics.

I make imprinted tshirts, I'll see what mine does on a PCB.

Steve

--- In Homebrew_PCBs@yahoogroups.com, "Bill Maxwell" <wrmaxwell@b...>
wrote:
> I am relatively new to this group and apologise if this possibility
has been
> mentioned previously. Some 10 years ago, a group of local amateur radio
> operators, all working in a Government communications laboratory, were
> having considerable success in printing PCB patterns directly onto the
> copper, using the ink used to print logos, slogans etc on to
T-shirts. They
> put the ink into the pens of the old flat-bed plotters. The
laboratory has
> long since closed and the group dispersed, so I cannot now follow
that idea
> up. Has anybody in this group tried T-shirt ink in an inkjet printer?
>
> Bill

Re: Standard inkjet inks for etch resist?

2004-03-08 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> ok---i uploaded 2 pics of the converted epson color stylus 880
> printer, waiting on the carts to come in, have a dedicated computer
> ready. will order empty black carts today. if this doesnt work---
> back to drawing board.
> mebo

I moved them to Files in a folder on Direct Resist printing.

The Photos area sucks- you uploaded beautiful closeup images, but
Yahoogroups only allows everyone else to see a tiny low res 400x300
pixel image. It will only show the high res original to the original
poster and the moderator.

So you had to cut and lower the back? A hot-rod Epson? ;')

Steve

Re: Standard inkjet inks for etch resist?

2004-03-09 by Richard Mustakos

Steve, you did T-shirts with screen printing - did you ever come across
any screen mask materials that were inkjet-able? Did you ever try to
laser print onto screen? Any thoughts on the chances of either working?
RM

>There are quite a few kind of "tshirt inks", all with different
>characteristics.
>
>I make imprinted tshirts, I'll see what mine does on a PCB.
>
>Steve
>
>
>
>

Re: Standard inkjet inks for etch resist?

2004-03-09 by Steve

I don't do screen print. I do know a little bit about it, though,
probably enough to be dangerous. ;')

Why would you print onto the screen? A screen has to be exposed just
like photosensitive PCBs so you print a transparency then expose and
develop the screen.

It's been discussed here quite a bit, that fabric printing screens are
just not fine enough mesh to screenprint etch resist.

If you mean can the screenprint inks be fed into an inkjet printer,
no, they are way too thick.

I am going to try the pigmented inks I use directly onto a PCB. I am
assuming I'll have problems with puddling, so I'm going to start out
with a hot board and lay down very little ink for a start. I have some
thin PCB about the thickness of a business card, that should feed fine
in my printer.

Steve


--- In Homebrew_PCBs@yahoogroups.com, Richard Mustakos
<rmustakos@a...> wrote:
> Steve, you did T-shirts with screen printing - did you ever come across
> any screen mask materials that were inkjet-able? Did you ever try to
> laser print onto screen? Any thoughts on the chances of either working?
> RM
>
> >There are quite a few kind of "tshirt inks", all with different
> >characteristics.
> >
> >I make imprinted tshirts, I'll see what mine does on a PCB.
> >
> >Steve

Re: Standard inkjet inks for etch resist?(drat)

2004-03-11 by pebo festus

well the computer didnt see the old epson color stylus 880, something
broken on the printer , soooooo, its back to the drawing board, i
have an old epson color stylus II that i have just about ready. not
only does one have to fight the printers but the ink medium also. i
AINT giving up!!!!.
mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(drat)

2004-03-11 by Stefan Trethan

On Thu, 11 Mar 2004 03:15:20 -0000, pebo festus <mebo31@...> wrote:

> well the computer didnt see the old epson color stylus 880, something
> broken on the printer , soooooo, its back to the drawing board, i
> have an old epson color stylus II that i have just about ready. not
> only does one have to fight the printers but the ink medium also. i
> AINT giving up!!!!.
> mebo
>


You ought to test that damn printer before working with it, didn't you
realize that?
good luck with the other one..


and also try to just send a file out on LPT in MS-DOS, maybe the printer
isn't dead
but windows is only lazy again...

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-11 by pebo festus

got he epson stylus color II going, got the mixture of 15 ml
MOP&GLO,9 ml red food coloring, 9 ml water through the black print
head. had to clean the black print head several times,there is no way
of knowing how long the printer had sat drying out. was about to give
up when the new ink came through. it came out light colored print but
very clear and sharp letters, may need to be light when printing on a
pcb because the copper doesnt absorb the ink. had to set the
brightness as dark as could and the contrast as high as could. of
course this may change when printing on a pcb.
I am sure all the printer setting plus diferent mixture of liquids
will have to be adjusted as i work it out.
NOW----I dont know how long the print head will set being not used
before it drys out in the print head with this blend of liquids.the
piezo print head is working so far.
wish me luck
mebo






--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Thu, 11 Mar 2004 03:15:20 -0000, pebo festus <mebo31@y...> wrote:
>
> > well the computer didnt see the old epson color stylus 880,
something
> > broken on the printer , soooooo, its back to the drawing board, i
> > have an old epson color stylus II that i have just about ready.
not
> > only does one have to fight the printers but the ink medium also.
i
> > AINT giving up!!!!.
> > mebo
> >
>
>
> You ought to test that damn printer before working with it, didn't
you
> realize that?
> good luck with the other one..
>
>
> and also try to just send a file out on LPT in MS-DOS, maybe the
printer
> isn't dead
> but windows is only lazy again...
>
> ST

Re: Standard inkjet inks for etch resist?

2004-03-11 by pebo festus

steve woild you mide deleating those pics of the epson 880 in files.
it is not working, TIA
mebo





--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...>
wrote:
> > ok---i uploaded 2 pics of the converted epson color stylus 880
> > printer, waiting on the carts to come in, have a dedicated
computer
> > ready. will order empty black carts today. if this doesnt work---
> > back to drawing board.
> > mebo
>
> I moved them to Files in a folder on Direct Resist printing.
>
> The Photos area sucks- you uploaded beautiful closeup images, but
> Yahoogroups only allows everyone else to see a tiny low res 400x300
> pixel image. It will only show the high res original to the original
> poster and the moderator.
>
> So you had to cut and lower the back? A hot-rod Epson? ;')
>
> Steve

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-11 by Stefan Trethan

Well done...

I guess you can't feed a pcb through?

you might try to tape a sheet of aluminium foil on a paper and run it
through.
then you can inspect it under a microscope and you may also try to etch it
(dunno
which etchants attack aluminium. - HCL does)

The fears i have are that either the drops leave space between them or
the layer is too thin to resist the etchant.
If that does not occur i see no further problems.

would be very nice to have high-dpi pcbs with so little effort.

Do you have a microscope to inspect the printout?
or would you rather just try etching....?

If that thing works you are definitely writing homebrew pcb history..

As said, sell a converted printer kit and get rich ;-)

Best luck, and i look very forward to further results.

ST

Other thought: i read in the pc newspapers that the new inkjets use less
ink on each
point, some very few picoliters, maybe best results are possible with
older printers.



On Thu, 11 Mar 2004 21:08:18 -0000, pebo festus <mebo31@...> wrote:

> got he epson stylus color II going, got the mixture of 15 ml
> MOP&GLO,9 ml red food coloring, 9 ml water through the black print
> head. had to clean the black print head several times,there is no way
> of knowing how long the printer had sat drying out. was about to give
> up when the new ink came through. it came out light colored print but
> very clear and sharp letters, may need to be light when printing on a
> pcb because the copper doesnt absorb the ink. had to set the
> brightness as dark as could and the contrast as high as could. of
> course this may change when printing on a pcb.
> I am sure all the printer setting plus diferent mixture of liquids
> will have to be adjusted as i work it out.
> NOW----I dont know how long the print head will set being not used
> before it drys out in the print head with this blend of liquids.the
> piezo print head is working so far.
> wish me luck
> mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-12 by Steve

Yeah!

How about using black injet ink? I think it'll be denser than food
coloring.

Try mixing it outside the printer first, to make sure it doesn't react
and glob up.

Heating the board before printing may help it dry before it gets a
chance to run.

Steve

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> got he epson stylus color II going, got the mixture of 15 ml
> MOP&GLO,9 ml red food coloring, 9 ml water through the black print
> head. had to clean the black print head several times,there is no way
> of knowing how long the printer had sat drying out. was about to give
> up when the new ink came through. it came out light colored print but
> very clear and sharp letters, may need to be light when printing on a
> pcb because the copper doesnt absorb the ink. had to set the
> brightness as dark as could and the contrast as high as could. of
> course this may change when printing on a pcb.
> I am sure all the printer setting plus diferent mixture of liquids
> will have to be adjusted as i work it out.
> NOW----I dont know how long the print head will set being not used
> before it drys out in the print head with this blend of liquids.the
> piezo print head is working so far.
> wish me luck
> mebo
>

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-12 by Stefan Trethan

On Fri, 12 Mar 2004 20:25:57 -0000, Steve <alienrelics@...> wrote:

> Yeah!
>
> How about using black injet ink? I think it'll be denser than food
> coloring.
>
> Try mixing it outside the printer first, to make sure it doesn't react
> and glob up.
>
> Heating the board before printing may help it dry before it gets a
> chance to run.
>
> Steve
>

I would not use coloring for the first trys.
I am rather sure it does nothing positive apart from letting you see the
image.

I would drop the board in etchant to see if it works, even with colored
ink you can't tell if the layer is thick enough and has no voids.

Wouldn't it be great to fill the color cartridge with different color
inks to make a really stunning component legend?

I think i really have to get a printer... However i want to wait until pebo
has more results...
It would also be possible to print a soldermask i guess if the right
ink is found...

What i still really fear is that the drops may not be forming a closed
surface.
After all for inkjet transparencys you also need a coating...
i fear the surface tension forms little drops, and there is nothing to
spread and suck up the ink, so it will just be a grid of small drops.

The solution would be some 2 component system, hardening a already present
layer.
However this increases the effort and it may already be more difficult than
TT. also the high resolution may be decreased.

Well, we will see...

pebo, i look forward to the next experiment results....

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Richard Mustakos

Pebo
To keep it from drying out, try putting a paper towel moistened with
mop n glo
over the jet exhaust (vrooooom) and put it in a plastic bag so that
doesn't dry out.
RM
PS Sorry about that last subject line - I'm just stoopid ;-)
PPS Good Luck
> I dont know how long the print head will set being not used before it
drys out in
> the print head with this blend of liquids.the piezo print head is
working so far.
> wish me luck
> mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Steve

Epson heads are not removeable.

I believe Mop and Glo, like Future Floor Polish, is soluble in
household ammonia. One of the tricks to clean partly clogged heads is
to put a few drops of Windex with Ammonia on the park pad before
turning the printer off.

More Mop and Glo would just make a dried out mess, I'd think.

Steve

--- In Homebrew_PCBs@yahoogroups.com, Richard Mustakos
<rmustakos@a...> wrote:
> Pebo
> To keep it from drying out, try putting a paper towel moistened with
> mop n glo
> over the jet exhaust (vrooooom) and put it in a plastic bag so that
> doesn't dry out.
> RM
> PS Sorry about that last subject line - I'm just stoopid ;-)
> PPS Good Luck
> > I dont know how long the print head will set being not used
before it
> drys out in
> > the print head with this blend of liquids.the piezo print head is
> working so far.
> > wish me luck
> > mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Russell Shaw

Steve wrote:
> Epson heads are not removeable.
>
> I believe Mop and Glo, like Future Floor Polish, is soluble in
> household ammonia. One of the tricks to clean partly clogged heads is
> to put a few drops of Windex with Ammonia on the park pad before
> turning the printer off.
>
> More Mop and Glo would just make a dried out mess, I'd think.

I've always had best success unclogging epson heads by putting
in a genuine epson ink tank which seems to have good solvent action.
You might need to do the clean/flush cycle 5-10 times.

Re: Standard inkjet inks for etch resist?

2004-03-13 by Richard Mustakos

Steve
They make much finer screens out of synthetics and metals that are
used for the PCB business.
I don't know squat about it other then what the Dow rep told me about
the conductive ink. The
spec says not for use on anything finer than 150um (micrometers)
thread/openings sizes for the
silver ink, about 1/170 inch per thread or hole, or 85 dpi of ink (0.117
inch hole to hole, 0.0058
inch hole size). I think that is fine enough for circuit board
printing, though I'm not sure, that's
why I'm on this list, I don't do it professionally <G>.
The copper ink can use screens down to 125 um thread/opening size.
The spec says the largest particle size is 29 um in the silver ink and
20 um in the copper.
The rep said it was too big for inkjet nozzles, because of the particle
size. Does anyone know
what the inkjet nozzle sizes are?
From what (little) I've read, the way they make flexible circuits is
screen printing the
conductive inks onto the flexible substrates.
The reason I'm interested in printing onto screens is that I'm
interested in screen printing PCBs
in entirety. I'd still like to be able to (best case) run a blank piece
of fiberglass or flexible
substrate through my printer and get a complete, multi-layer, pcb out
the other.
My ideal would be UV hardening inks, with high power UV LEDs on the
print head so that
as soon as it prints, it starts getting cured. Then be able to multi
pass print, where the ink
reservoirs are filled with conductive ink, insulating ink, solder mask
and component marking ink.
Print conductors, print insulating layer for crossovers, print
crossovers, repeat as needed,
print ground layer, you get the idea.
Problem is, they don't make UV curable conductive inks, since the
metal in the inks
blocks the UV penetration into the epoxy matrix, they only make heat
cure and VOC based.
So to give a short answer, if I can't print like I would really like,
the next step back is doing
it by directly printing the layers onto the screens, then using the
screens to print the different
conductive and insulative layers, drying between layers, then curing it
all together.
I don't want to mess with exposing the screens and developing them
anymore than I want
to expose, develop and etch the copper ;)
I'm basically lazy and cheap.
I want it, I want it now, I want it free and I don't want to work to
get it.
I will work real so that I can be lazy about something later. I could
make pcbs the 'old
fashioned' way, but I'd rather just have the pcb already. If I'm doing
a design, that's what
I'm concerned with, and interested in doing. At that point making a PCB
is just a means to
an end.
Right now I'm in interested on how to make one off pcbs the cheap and
lazy way, so it's
got my attention. Later on, I'll just want the darn pcb, so I have to
help figure out a real quick
and fairly easy way to do it, now, so I can be lazy about it later.
Take the last three or four paragraphs with grains of salt and smileys
after every line.
Except the cheap and easy one. Damn, I meant cheap and lazy. :(
RM

>Why would you print onto the screen? A screen has to be exposed just
>like photosensitive PCBs so you print a transparency then expose and
>develop the screen.
>
>It's been discussed here quite a bit, that fabric printing screens are
>just not fine enough mesh to screenprint etch resist.
>
>If you mean can the screenprint inks be fed into an inkjet printer,
>no, they are way too thick.
>
>I am going to try the pigmented inks I use directly onto a PCB. I am
>assuming I'll have problems with puddling, so I'm going to start out
>with a hot board and lay down very little ink for a start. I have some
>thin PCB about the thickness of a business card, that should feed fine
>in my printer.
>
>Steve
>
>
>

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by pebo festus

thanks to every one for the good words and ideas. i am
having a little trouble getting my ink through the
head now. maybe it is to thick, it will print--then
have to clean the head, one instance i waited a bit
and it printed ok, i think i am going to have to use
thinner ink. i am hesitant to use the regular ink in
my mixture because it has glycerene in it and it
doesnt dry. i think it is a good idea to put some
ammonia on the rest pad, iam aware ammonia will clean
mop&glo.imho i think i need to add just a touch more
percentage of alcohol to the mixture. it looks a bit
hard to get the print heads off of this epson stylus
color II, i cleaned the heads on an 880 and the holes
were open but the printer didnt work. seems the epson
stylus color II is easier to work with because it has
manual paper feed and punch two buttons to clean the
heads. I havent printed on a pcb yet, just got the
epson II back cut out so could feed pcb through. then
i was trying paper just to see if the printer still
printed, then is when i started to have problems with
the ink. as i have stated before i put a dot of
mop&glo on a pcb and it appeared to be usable as a
resist. we will keep trying
mebo


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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Stefan Trethan

On Fri, 12 Mar 2004 20:20:44 -0800 (PST), pebo festus <mebo31@...>
wrote:

> thanks to every one for the good words and ideas. i am
> having a little trouble getting my ink through the
> head now. maybe it is to thick, it will print--then
> have to clean the head, one instance i waited a bit
> and it printed ok, i think i am going to have to use
> thinner ink. i am hesitant to use the regular ink in
> my mixture because it has glycerene in it and it
> doesnt dry. i think it is a good idea to put some
> ammonia on the rest pad, iam aware ammonia will clean
> mop&glo.imho i think i need to add just a touch more
> percentage of alcohol to the mixture. it looks a bit
> hard to get the print heads off of this epson stylus
> color II, i cleaned the heads on an 880 and the holes
> were open but the printer didnt work. seems the epson
> stylus color II is easier to work with because it has
> manual paper feed and punch two buttons to clean the
> heads. I havent printed on a pcb yet, just got the
> epson II back cut out so could feed pcb through. then
> i was trying paper just to see if the printer still
> printed, then is when i started to have problems with
> the ink. as i have stated before i put a dot of
> mop&glo on a pcb and it appeared to be usable as a
> resist. we will keep trying
> mebo
>

I do not think mop&glow can be tested by putting a dot on a pcb.
i made this error myself, it always depends on the layer thickness also.
almost anything will work if you apply a relatively big amount..


To the drying-out problem:
Maybe really try staedtler red ink, it is advertised as "dry proof"
and they say a open ohp pen can lie around open for several days
and it will still work.
I observed that the surface of the ink gets slightly bluish if it is
exposed.
it might be that this ink makes a very thin hide on the srface which
prevents further
drying, but it might also be that the "dried" ink is just "thickened" and
still "sucks in"
solvent from the wet ink. this would mean that the tip of the pen only
dries completely
at the moment all the solvent is spent.
I do not know if it will inkjet well, but i would guess so.
it seems thin enough and i do not think it has particles.

It also is colored already, which makes that unneccesary.

I would put a drop of alcohol or ammonia on the rubber lid which seals the
head,
and then you simply print the board on a piece of paper before the actual
pcb print.
this gives the head time to start working properly and you can check the
board a final
time.

ST

Re: Standard inkjet inks for etch resist?

2004-03-13 by Richard Mustakos

Hey, I was just surfing, and ended up at a site for a 3D prototype company.
<http://www.zcorp.com> (interesting in it's own right)
They use an inkjet printer to print a liquid that binds plaster dust
together to
make their models. Sounds almost like regular inkjet except they add
another
set of nozzles that prints clear, and always output the same amount of
liquid.
They print with a full color inkjet head and give full color 3d parts.
But I digress.
Direct printing of a pcb, version 0.01
Make the inkjet head transform in the Y, as well as X axis.
Put a piece of fiber-glass on a flat bed.
Spread powdered solder on the board to an even level.
Print on it, wetting the powder where you want a trace.
Dump off the dry powder.
Put it in a toaster and reflow the stuff the ink kept in place.
If you have surface mount components, put them in place prior to the
reflow.

I think the resolution would be controlled by the fineness of the grind
on the solder
more than the resolution of the printer.

I suspect there are issues with:
grinding the solder fine enough
(not an issue - it's manufactured to the tiny as s--t level)
wetting the powder enough with a regular inkjet
(how thick does powder layer need to be?)
keeping the wet powder right where you want it
(need something that wets the board as well as the solder)
getting the reflowed solder to stay where you want it
(would some kind of flux work as a wetting agent and keep the
reflowed solder from running or balling? means printing flux)

The Dow Corning PI-1000 copper based conductive ink is made with copper
powder and solder powder. The curing process has two purposes:
1) it actually cures the binder
2) it melts the solder powder so that it produces the copper to copper
connection

Using copper keeps the resistance down, and is exactly what we would want.
Using the solder binds everything, just like we would want. I don't
think the fiber
glass would take the temperatures required to 'reflow' the copper powder
by itself,
(not to mention my toaster won't, either) so the solder powder is required.
A quick look showed a number of copper powder manufacturers, and a solder
paste manufacturing uses solder powders. I'll try and get more
information on the
materials next week. it's tough to do on the weekends.
Richard

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Steve

--- In Homebrew_PCBs@yahoogroups.com, Russell Shaw <rjshaw@n...> wrote:
> Steve wrote:
> > Epson heads are not removeable.
> >
> > I believe Mop and Glo, like Future Floor Polish, is soluble in
> > household ammonia. One of the tricks to clean partly clogged heads is
> > to put a few drops of Windex with Ammonia on the park pad before
> > turning the printer off.
> >
> > More Mop and Glo would just make a dried out mess, I'd think.
>
> I've always had best success unclogging epson heads by putting
> in a genuine epson ink tank which seems to have good solvent action.
> You might need to do the clean/flush cycle 5-10 times.

I doubt inkjet ink will dissolve Mop and Glo. And the intent is to
prevent a clog in the first place.

I wasn't clear enough. The question I was addressing was, how to keep
an Epson head full of the Mop and Glo/water/watercolor mixture from
drying out overnight. Since household ammonia will dissolve Mop and
Glo, and people have regularly used it to unplug Epson heads, we know
it is (relatively) safe to use in the printer and it should keep the
Mop and Glo from hardening in the head overnight.

Steve

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by pebo festus

I have tryed regular ink jet ink on a pbc and even put it in the
oven to dry it, it would not get hard, soooo think it will wash off
in the etchant,it came off when i riensed the board with water. the
ink i baked was for bubble jet printers, havent tryed piezo ink. I
found that the ink (mop&glo mixture) that i had in the cart had
drained out during the night. so it is getting through the heads ok.
it printed this morning.i had left windex with ammonia on the head
park pad. when i first start printing the ink globs up and doesnt
print right, buuut after the ink gets low or nearly out it prints ok.
not dark and heavy but ok. so i am now thinking my mixture is to
thin.
i finally printed on a pcb this morn and it left a LIGHT image on the
board, didnt run or glob. will etch it to check the results. the old
epson stylus color II has hung in there with me, it has software for
95 but works great on 98se. it doesnt have the options of the later
printers, but who cares if it will print on a pcb.it will go to 720
dpi. the feed works great but need something to alighn the board as
it prints through, that will be no big hassel. had to adjust the
printer head height as high as would go and then cut the paper
support rollers and knots on the front off to get the pcb low enough
to feed through with out the heads hanging on the board.
now if i can just get the ink right
think i will try mop&glo and put a small amount of acrylic black
artist paint in the mixture and see the outcome.
mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Stefan Trethan

Hi mebo...

It is good to hear that you have done some more experimenting...

I really NEED to know if it works soon, i could get this stylus color 600
with probably only a mech. problem for free, but i must fetch it there
which is no little effort (It is located on the ... of the world).

I think the layer of ink is not consistent, i think there will be a "grid"
of droplets and open space between. I like to be prooved wrong in this
case ;-).


I am not much interested in a two component approach, i think
it will then get to the same effort level as TT which works properly
already.


Please try to etch a board, or try to look with a magnifier or microscope
on the
ink layer. if it is a closed layer it should after all be possible to find
a ink that
is working. even if the layer is too thin we might just print multiple
times.

I just have this image of a lot of little droplets with a lot of surface
tension in my head.
(I tried to print on a uncoated ohp transparency and it looked like that...
of course then i used the wrong ink and copper is different but still...)


I have wasted time, and money, with that damn bubblejet, in the end
getting nothing
of any use at all... I am somewhat reluctant to repeat this. However the
problem
i have had does not occur with your printer obviously, and it might work.
On the other hand the next unsolveable problem may just be a few steps
ahead....



ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by Phil

I can't blame you for not wanting to spend hours experimenting.
especially when it becomes clear that it might take 10s or 100s of
hrs.

If the droplet spacing is too wide, I think that could be compensatod
for in the driver. some drivers have control over how much ink is
deposited. My hp5550 has the ability to darken prints which I believe
deposits more black ink, for example.

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> Hi mebo...
>
> It is good to hear that you have done some more experimenting...
>
> I really NEED to know if it works soon, i could get this stylus
color 600
> with probably only a mech. problem for free, but i must fetch it
there
> which is no little effort (It is located on the ... of the world).
>
> I think the layer of ink is not consistent, i think there will be
a "grid"
> of droplets and open space between. I like to be prooved wrong in
this
> case ;-).
>
>
> I am not much interested in a two component approach, i think
> it will then get to the same effort level as TT which works
properly
> already.
>
>
> Please try to etch a board, or try to look with a magnifier or
microscope
> on the
> ink layer. if it is a closed layer it should after all be possible
to find
> a ink that
> is working. even if the layer is too thin we might just print
multiple
> times.
>
> I just have this image of a lot of little droplets with a lot of
surface
> tension in my head.
> (I tried to print on a uncoated ohp transparency and it looked like
that...
> of course then i used the wrong ink and copper is different but
still...)
>
>
> I have wasted time, and money, with that damn bubblejet, in the end
> getting nothing
> of any use at all... I am somewhat reluctant to repeat this.
However the
> problem
> i have had does not occur with your printer obviously, and it might
work.
> On the other hand the next unsolveable problem may just be a few
steps
> ahead....
>
>
>
> ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-13 by pebo festus

you are right Phil---this AINT gonna happen over night. the wife is
wanting to plant garden so i may be away for a day or two. i took a
picture(and will post) of what i had printed with the ink mixture and
etched didnt come out well at all. the print was real light , if the
printer had been printing like it has at one time the etch would have
been much better(but probably not perfect). i am going to have to get
a mixture that will spread just a bit yet not run. BUT some of this
depends on how you clean your board.IMHO laquer thinner(or aceatone)
works well for oil based resist. soap, water and brillo pad , then
windex works best for water based resists.
we will keep trying
mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-14 by Stefan Trethan

On Sat, 13 Mar 2004 22:51:48 -0000, pebo festus <mebo31@...> wrote:

> you are right Phil---this AINT gonna happen over night. the wife is
> wanting to plant garden so i may be away for a day or two. i took a
> picture(and will post) of what i had printed with the ink mixture and
> etched didnt come out well at all. the print was real light , if the
> printer had been printing like it has at one time the etch would have
> been much better(but probably not perfect). i am going to have to get
> a mixture that will spread just a bit yet not run. BUT some of this
> depends on how you clean your board.IMHO laquer thinner(or aceatone)
> works well for oil based resist. soap, water and brillo pad , then
> windex works best for water based resists.
> we will keep trying
> mebo
>
>

Take your time... i can get another epson printer for very cheap if it
finally
works out... there are loads at ebay.
(I could start experimenting on my own but my time does not allow so it is
unfair
to press you...)

good luck...

Oh, yes, i refilled my hp cartridges with parker black in in the past, it
was
always important to keep the pressure right. too low and nothing comes
out, too
high and it drops.
there is a plastic bag in the hp (black)cartridges, way better than the
sponge in some other...

maybe that helps..

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-14 by pebo festus

I cleaned the black print head today. used a 3/16 clear tubing and
squirted about 3 squirts of windex with ammonia in the tube. put the
tubing over the little thingie sticking up in the cart well, and blew
in the tube---you wouldnt beleive what came out. the head still had
black ink in it even after using the red dye, i did that about 4
times and the liquid cleared up. of course i had to use several paper
towels under the head. this may have been the reason the printer
wasnt printing as it should. we will know tomorrow as i will give it
another try if every thing works.
mebo

Another approach? was Re: Standard inkjet inks for etch resist?

2004-03-14 by ballendo

Richard,

Based on what you've written here, I'd suggest avidly pursuing the
printing of flux. That approach seems the most likely to yield decent
results. Solder dust printed to a board without flux is gonna just
run all over the place, IMO.

Oooorrrr...

What about using a laserjet and having the toner--which we already
know is thermoplastic-- become the binder for the solder/copper
powder??

Seems to me that if we printed trace outlines directly to the BARE
FRP board--or even ironed it on! after printing to paper-- and then
put a layer of solder/copper dust on top... That if that went into
the oven(set for toner melt temp), the toner would bind the
solder/copper to the board.

Since the toner melts at a lower temperature than the solder copper...

The NEXT step is to brush away the solder copper dust-- which is not
sticking anywhere EXCEPT where the toner was-- and then put the board
into a hotter oven for reflow OF the solder/copper!

Just might work.

Ballendo

P.S. I have several samples from the Zcorp RP machine. Got 'em at
last year's Westec show. One is a ball bearing, workable, all printed
at one time. Pretty cool, but not nearly as durable as the other RP
processes. In times of high humidity the parts tend to crumble.


--- In Homebrew_PCBs@yahoogroups.com, Richard Mustakos
<rmustakos@a...> wrote:
> Hey, I was just surfing, and ended up at a site for a 3D prototype
company.
> <http://www.zcorp.com> (interesting in it's own right)
> They use an inkjet printer to print a liquid that binds plaster
dust
> together to
> make their models. Sounds almost like regular inkjet except they
add
> another
> set of nozzles that prints clear, and always output the same amount
of
> liquid.
> They print with a full color inkjet head and give full color 3d
parts.
> But I digress.
> Direct printing of a pcb, version 0.01
> Make the inkjet head transform in the Y, as well as X axis.
> Put a piece of fiber-glass on a flat bed.
> Spread powdered solder on the board to an even level.
> Print on it, wetting the powder where you want a trace.
> Dump off the dry powder.
> Put it in a toaster and reflow the stuff the ink kept in place.
> If you have surface mount components, put them in place prior to
the
> reflow.
>
> I think the resolution would be controlled by the fineness of the
grind
> on the solder
> more than the resolution of the printer.
>
> I suspect there are issues with:
> grinding the solder fine enough
> (not an issue - it's manufactured to the tiny as s--t level)
> wetting the powder enough with a regular inkjet
> (how thick does powder layer need to be?)
> keeping the wet powder right where you want it
> (need something that wets the board as well as the solder)
> getting the reflowed solder to stay where you want it
> (would some kind of flux work as a wetting agent and keep the
> reflowed solder from running or balling? means printing flux)
>
> The Dow Corning PI-1000 copper based conductive ink is made with
copper
> powder and solder powder. The curing process has two purposes:
> 1) it actually cures the binder
> 2) it melts the solder powder so that it produces the copper to
copper
> connection
>
> Using copper keeps the resistance down, and is exactly what we
would want.
> Using the solder binds everything, just like we would want. I
don't
> think the fiber
> glass would take the temperatures required to 'reflow' the copper
powder
> by itself,
> (not to mention my toaster won't, either) so the solder powder is
required.
> A quick look showed a number of copper powder manufacturers, and
a solder
> paste manufacturing uses solder powders. I'll try and get more
> information on the
> materials next week. it's tough to do on the weekends.
> Richard

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-14 by pebo festus

DO NOT use black laytex paint in your cart. tried it today and there
is a fine micro screen in the bottom of the ink cart, the laytex will
plug it up. looks like I am going to have to stay with dye.
mebo

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-14 by Stefan Trethan

On Sun, 14 Mar 2004 21:38:14 -0000, pebo festus <mebo31@...> wrote:

> DO NOT use black laytex paint in your cart. tried it today and there
> is a fine micro screen in the bottom of the ink cart, the laytex will
> plug it up. looks like I am going to have to stay with dye.
> mebo
>
>

ok, thanks.. (is laytex a company or what? is it latex paint?????????)

good luck... hope you get that thing cleaned out again for further
trying..

can you get your hands on red staedtler ink?
i really think this is a good candidate..

Did you try the mop'n glo again with the flushed head?

Please describe what the current status is,
is the problem the layer thickness/consistency?
or are not all jets printing full amount?


I would first try acrylic paint, like floor polish,
as thick at it fits through,
then i would try the staedtler red,
and maybe another option could be UV curing ink.
(i think it allows slightly thicker layers with the same initial amount
because there is no solvent, or is there?)

Keep us informed..

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by pebo festus

yes st, i mixed mop&glo with artist black acrylic
paint,the paint seperated from the water in the
mixture. I could not get the printer to print, so I
took the cart apart(prized the top off) took out the
spoung and there is a micro screen over the orfice
going to the print heads. the paint pluged it up.had a
dickens of a time getting that screen clean. then i
cleaned my print head again and it was kinda stopped
up ,but got ammonia through it again. went to the
store and bought a bottle of black ritz dye, put some
of it and some more mop&glow in the cart and it still
didnt work out. i will order 2 new carts monday and
see if the regular ink will still print. will take two
or three days for them to arrive. am thinking now of
changing from mop&glo to Johnsons acrylic liquid floor
wax with just a touch of ritz dye in it. will see if
that stops things up.now that i know how the carts are
made it will be easier to work with them.i have a air
compresser and can blow back through the screen in the
cart and maybe clean it. i have seen on other posts
that some folks are looking at alps heated impact
printers, if i can find one that works one may get
into that also.
mebo







> ok, thanks.. (is laytex a company or what? is it
> latex paint?????????)
>
> good luck... hope you get that thing cleaned out
> again for further
> trying..
>
> can you get your hands on red staedtler ink?
> i really think this is a good candidate..
>
> Did you try the mop'n glo again with the flushed
> head?
>
> Please describe what the current status is,
> is the problem the layer thickness/consistency?
> or are not all jets printing full amount?
>
>
> I would first try acrylic paint, like floor polish,
> as thick at it fits through,
> then i would try the staedtler red,
> and maybe another option could be UV curing ink.
> (i think it allows slightly thicker layers with the
> same initial amount
> because there is no solvent, or is there?)
>
> Keep us informed..
>
> ST
>
>
> ------------------------ Yahoo! Groups Sponsor
>
> Be sure to visit the group home and check for new
> Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
> Homebrew_PCBs-unsubscribe@yahoogroups.com
>
>
>


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Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Steve

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> yes st, i mixed mop&glo with artist black acrylic
> paint,the paint seperated from the water in the
> mixture. I could not get the printer to print, so I
> took the cart apart(prized the top off) took out the
> spoung and there is a micro screen over the orfice
> going to the print heads. the paint pluged it up.had a
> dickens of a time getting that screen clean. then i
> cleaned my print head again and it was kinda stopped
> up ,but got ammonia through it again. went to the
> store and bought a bottle of black ritz dye, put some
> of it and some more mop&glow in the cart and it still
> didnt work out. i will order 2 new carts monday and
> see if the regular ink will still print. will take two
> or three days for them to arrive. am thinking now of
> changing from mop&glo to Johnsons acrylic liquid floor
> wax with just a touch of ritz dye in it. will see if
> that stops things up.now that i know how the carts are
> made it will be easier to work with them.i have a air
> compresser and can blow back through the screen in the
> cart and maybe clean it. i have seen on other posts
> that some folks are looking at alps heated impact
> printers, if i can find one that works one may get
> into that also.
> mebo

Alps wax thermal are not impact. Just heat.

Why not mix some refill black inkjet ink? It's meant to go through the
heads. The glycol will dry, it just slows it down and perhaps a bit
of heat will speed that up.

Ritz dye has a lot of salt in it.

Don't use an air compressor! You'll almost certainly ruin the heads.
Even using a syringe to clean the heads, you must press only slowly
and never very hard.

Here are some links to websites on cleaning Epson print-heads:

Cleaning Epson print head
Mentions cleaning the waste ink sponge aka blotter
http://www.inkjetcartridgesrus.com/inkjet_article_18.html

Cleaning Epson print heads
Using hot water and a syringe to force the dried ink out.
http://www.printercartridgesink.com/help_ij_epsonclogged.html

Epson print heads deconstructed
print heads deconstructed. See how tiny the nozzles are? This is why
you -never- poke the heads with anything trying to release a clog!
Includes Epson patent drawings. Very informative.
http://members.shaw.ca/hargravep/head.htm

Heavy duty head flushing
Hot cleaning solution forced through with a syringe.
http://www.squaredot.com/flushkit%20web/headflush2.html

Inkjet Art heavy purging of Epson print heads
Automatic purging by removing the ink carts and turning off the
printer. Includes TIFF files to print to purge 98% of the ink left.
Aimed mainly at getting all the OEM inks out when changing to 3rd
party inks.
http://www.inkjetart.com/archival_inks/purging.html

Max Patch Ink's cleaning instructions
Claims to be the same cleaning solution and procedure as used by Epson
factory techs.
http://www.maxpatchink.com/directions-solutionkit.htm

Alien Steve

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Ted Inoue

I've been following this thread with interest. Seems that direct
printing of a PCB mask is something of the holy grail to us homebrew
types.

One thought just occurred to me. Since they sell pens that you can use
to draw your own layouts (i.e. Sharpie pens), how about finding out
what ink is used in those and fill an ink cartridge with that?

I know this is obvious, but I've heard lots of other complex formula
that don't seem to work and lead to clogging. The Sharpie ink seems
based on a volatile solvent that dries very fast. The solvent may also
help to resolve head clogging problems as it might be a self-cleaning
solution. One problem I can see is that it may be so fluid that it
would just drain out of the cart. But perhaps this could be resolved
by altering the vent ports to allow less air in.

Hope somebody figures this out.
-Ted

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by pebo festus

good info steve, thanks.




--- Steve <alienrelics@...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, pebo festus
> <mebo31@y...> wrote:
> > yes st, i mixed mop&glo with artist black acrylic
> > paint,the paint seperated from the water in the
> > mixture. I could not get the printer to print, so
> I
> > took the cart apart(prized the top off) took out
> the
> > spoung and there is a micro screen over the orfice
> > going to the print heads. the paint pluged it
> up.had a
> > dickens of a time getting that screen clean. then
> i
> > cleaned my print head again and it was kinda
> stopped
> > up ,but got ammonia through it again. went to the
> > store and bought a bottle of black ritz dye, put
> some
> > of it and some more mop&glow in the cart and it
> still
> > didnt work out. i will order 2 new carts monday
> and
> > see if the regular ink will still print. will take
> two
> > or three days for them to arrive. am thinking now
> of
> > changing from mop&glo to Johnsons acrylic liquid
> floor
> > wax with just a touch of ritz dye in it. will see
> if
> > that stops things up.now that i know how the carts
> are
> > made it will be easier to work with them.i have a
> air
> > compresser and can blow back through the screen in
> the
> > cart and maybe clean it. i have seen on other
> posts
> > that some folks are looking at alps heated impact
> > printers, if i can find one that works one may get
> > into that also.
> > mebo
>
> Alps wax thermal are not impact. Just heat.
>
> Why not mix some refill black inkjet ink? It's meant
> to go through the
> heads. The glycol will dry, it just slows it down
> and perhaps a bit
> of heat will speed that up.
>
> Ritz dye has a lot of salt in it.
>
> Don't use an air compressor! You'll almost certainly
> ruin the heads.
> Even using a syringe to clean the heads, you must
> press only slowly
> and never very hard.
>
> Here are some links to websites on cleaning Epson
> print-heads:
>
> Cleaning Epson print head
> Mentions cleaning the waste ink sponge aka blotter
>
http://www.inkjetcartridgesrus.com/inkjet_article_18.html
>
> Cleaning Epson print heads
> Using hot water and a syringe to force the dried ink
> out.
>
http://www.printercartridgesink.com/help_ij_epsonclogged.html
>
> Epson print heads deconstructed
> print heads deconstructed. See how tiny the nozzles
> are? This is why
> you -never- poke the heads with anything trying to
> release a clog!
> Includes Epson patent drawings. Very informative.
> http://members.shaw.ca/hargravep/head.htm
>
> Heavy duty head flushing
> Hot cleaning solution forced through with a syringe.
>
http://www.squaredot.com/flushkit%20web/headflush2.html
>
> Inkjet Art heavy purging of Epson print heads
> Automatic purging by removing the ink carts and
> turning off the
> printer. Includes TIFF files to print to purge 98%
> of the ink left.
> Aimed mainly at getting all the OEM inks out when
> changing to 3rd
> party inks.
> http://www.inkjetart.com/archival_inks/purging.html
>
> Max Patch Ink's cleaning instructions
> Claims to be the same cleaning solution and
> procedure as used by Epson
> factory techs.
>
http://www.maxpatchink.com/directions-solutionkit.htm
>
> Alien Steve
>
>


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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

On Mon, 15 Mar 2004 12:17:16 -0000, Ted Inoue <ted@...>
wrote:

> I've been following this thread with interest. Seems that direct
> printing of a PCB mask is something of the holy grail to us homebrew
> types.
>
> One thought just occurred to me. Since they sell pens that you can use
> to draw your own layouts (i.e. Sharpie pens), how about finding out
> what ink is used in those and fill an ink cartridge with that?
>
> I know this is obvious, but I've heard lots of other complex formula
> that don't seem to work and lead to clogging. The Sharpie ink seems
> based on a volatile solvent that dries very fast. The solvent may also
> help to resolve head clogging problems as it might be a self-cleaning
> solution. One problem I can see is that it may be so fluid that it
> would just drain out of the cart. But perhaps this could be resolved
> by altering the vent ports to allow less air in.
>
> Hope somebody figures this out.
> -Ted
>
>

I suggested a few hundred times staedtler red, i have no sharpie pen here
and
i think it is similar.
Maybe in the other mail from pebo is a comment on it (i still need to
read).
I agree that it is a obvious thing to try as it is known to work as a
resist.

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

Please mebo
( i hope this is how you like to be called...)

Do not attempt to color the resist any more.
It is really not needed and it adds a unknown variable with
maybe very bad results. (see the black paint).
You want to reduce variables, not add them.

I hope it is not too expensive to change this head....

I also hope you tell me if you plan to try sharpie or staedtler red ink.

The coloring seems to add a huge unpredictable risk, you do not
konw if the color itself, or in combination/reaction with the resist
will cause problems.

On the other hand i do not think the color will improove the resist
functionality.
It is only for visibility i assume. I do not deny that this will be a very
important
feature in the final mixture but i do think that we have time then to try
which colorant
is suited for the resist.

When you have the heads i would first try the acrylic floor polish.
try it as it comes out from the can (it it is the same density as the bona
polish
i have it seems not to be too thick).
You may also try to dilute it first to 50% or 25%, to be sure it will not
clog the head.
if the resist layer is too thin then (which i expect) you can try thicker
stuff.

You should be able to see the layer of clear laquer if you hold the board
at an angle
against a light source. of course you also should immediately see the
result in the etchant.
Make sure the polish is completely dry (maybe dry in a oven).


Best luck with your next experiment..

ST



On Sun, 14 Mar 2004 18:50:03 -0800 (PST), pebo festus <mebo31@...>
wrote:

> yes st, i mixed mop&glo with artist black acrylic
> paint,the paint seperated from the water in the
> mixture. I could not get the printer to print, so I
> took the cart apart(prized the top off) took out the
> spoung and there is a micro screen over the orfice
> going to the print heads. the paint pluged it up.had a
> dickens of a time getting that screen clean. then i
> cleaned my print head again and it was kinda stopped
> up ,but got ammonia through it again. went to the
> store and bought a bottle of black ritz dye, put some
> of it and some more mop&glow in the cart and it still
> didnt work out. i will order 2 new carts monday and
> see if the regular ink will still print. will take two
> or three days for them to arrive. am thinking now of
> changing from mop&glo to Johnsons acrylic liquid floor
> wax with just a touch of ritz dye in it. will see if
> that stops things up.now that i know how the carts are
> made it will be easier to work with them.i have a air
> compresser and can blow back through the screen in the
> cart and maybe clean it. i have seen on other posts
> that some folks are looking at alps heated impact
> printers, if i can find one that works one may get
> into that also.
> mebo
>
>
>
>
>
>
>
>> ok, thanks.. (is laytex a company or what? is it
>> latex paint?????????)
>>
>> good luck... hope you get that thing cleaned out
>> again for further
>> trying..
>>
>> can you get your hands on red staedtler ink?
>> i really think this is a good candidate..
>>
>> Did you try the mop'n glo again with the flushed
>> head?
>>
>> Please describe what the current status is,
>> is the problem the layer thickness/consistency?
>> or are not all jets printing full amount?
>>
>>
>> I would first try acrylic paint, like floor polish,
>> as thick at it fits through,
>> then i would try the staedtler red,
>> and maybe another option could be UV curing ink.
>> (i think it allows slightly thicker layers with the
>> same initial amount
>> because there is no solvent, or is there?)
>>
>> Keep us informed..
>>
>> ST
>>
>>
>> ------------------------ Yahoo! Groups Sponsor
>>
>> Be sure to visit the group home and check for new
>> Bookmarks and files:
>> http://groups.yahoo.com/group/Homebrew_PCBs
>> Yahoo! Groups Links
>>
>>
>> Homebrew_PCBs-unsubscribe@yahoogroups.com
>>
>>
>>
>
>
> __________________________________
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> Yahoo! Mail - More reliable, more storage, less spam
> http://mail.yahoo.com
>
>
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> Yahoo! Groups Links
>
>
>
>
>

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by pebo festus

I feel one would need to stay with ink fluids that can
be cleaned with water solvent cleaners. from my
experence with paints, if a solvent based ink dries in
the head there is no way to clean it, it drys hard and
solvent cleaner would not penatrate the pluged nozzel.
just stating my thoughts. i may be wrong. it is a
tough issue. have googled about banner printers but i
dont know what size printer holes thay have and
probably could not get the ink in small amount.
I read the label on the ritz dye about the salt( i am
not a chemist) but if the salt is desolved the salt
particles should not be very large and should pass the
printer holes.please correct me if i am wrong. if i
have damaged this old epson stylus color II print head
i may be looking for another one because it converts
to a flat bed very easy for me.
every one keep the suggestions coming, i need all the
help i can get.
mebo





--- Stefan Trethan <stefan_trethan@...> wrote:
> On Mon, 15 Mar 2004 12:17:16 -0000, Ted Inoue
> <ted@...>
> wrote:
>
> > I've been following this thread with interest.
> Seems that direct
> > printing of a PCB mask is something of the holy
> grail to us homebrew
> > types.
> >
> > One thought just occurred to me. Since they sell
> pens that you can use
> > to draw your own layouts (i.e. Sharpie pens), how
> about finding out
> > what ink is used in those and fill an ink
> cartridge with that?
> >
> > I know this is obvious, but I've heard lots of
> other complex formula
> > that don't seem to work and lead to clogging. The
> Sharpie ink seems
> > based on a volatile solvent that dries very fast.
> The solvent may also
> > help to resolve head clogging problems as it might
> be a self-cleaning
> > solution. One problem I can see is that it may be
> so fluid that it
> > would just drain out of the cart. But perhaps this
> could be resolved
> > by altering the vent ports to allow less air in.
> >
> > Hope somebody figures this out.
> > -Ted
> >
> >
>
> I suggested a few hundred times staedtler red, i
> have no sharpie pen here
> and
> i think it is similar.
> Maybe in the other mail from pebo is a comment on it
> (i still need to
> read).
> I agree that it is a obvious thing to try as it is
> known to work as a
> resist.
>
> ST
>
>
> ------------------------ Yahoo! Groups Sponsor
>
> Be sure to visit the group home and check for new
> Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
> Homebrew_PCBs-unsubscribe@yahoogroups.com
>
>
>


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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

On Mon, 15 Mar 2004 08:09:26 -0800 (PST), pebo festus <mebo31@...>
wrote:

> I feel one would need to stay with ink fluids that can
> be cleaned with water solvent cleaners. from my
> experence with paints, if a solvent based ink dries in
> the head there is no way to clean it, it drys hard and
> solvent cleaner would not penatrate the pluged nozzel.
> just stating my thoughts. i may be wrong. it is a
> tough issue. have googled about banner printers but i
> dont know what size printer holes thay have and
> probably could not get the ink in small amount.
> I read the label on the ritz dye about the salt( i am
> not a chemist) but if the salt is desolved the salt
> particles should not be very large and should pass the
> printer holes.please correct me if i am wrong. if i
> have damaged this old epson stylus color II print head
> i may be looking for another one because it converts
> to a flat bed very easy for me.
> every one keep the suggestions coming, i need all the
> help i can get.
> mebo
>

I think if the ink is dry in the head it is too late with any ink.
the easier the ink to solve and stronger the solvent the more likely
it seems to clean out.
But completely solidified acrylic in a head - i can't imagine getting that
out.
Also keep in mind that solvent based inks may dry out inside the head very
quickly
while water may stay wet there some time...

Also keep in mind the ink from staedtler is "dry proof" whatever this
means.
(yes i want to make you try it and you might have noticed this by now ;-) )

good luck

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Steve

Acrylic paint is water cleanup yet as Stefan points out, once it's dry
that's it.

And the whole point is to use something that -can't- be dissolved by
water once it's dry.

Skip the color for now. As pointed out, test coverage by a quick etch.

And it might help the Mop and Glo to stay in place if (as suggested
here much earlier) after you clean the board, give it a very short
etch in the acid, rinse and print. This will give the surface a
slightly rough finish which may prevent the Mop and Glo from simply
beading up.

My point about the salt is that you don't know how Mop and Glo is
going to react with the salt. Salt breaks up into sodium and chloride,
that is how all salts dissolve in water. This means they tend to be
very reactive.

Also, a word about pigments: pigments are made of chunks of color.
Pigmented inks made for inkjet printers are specially made to have
chunks small enough to go through the whole kit-and-kaboodle. Paint is
not.

If I weren't so broke, I'd have tried to get some of the Staedler Red
ink and tried it myself. It might mean the printer has to be cleaned
more often, but that's a small price.

Steve

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> I feel one would need to stay with ink fluids that can
> be cleaned with water solvent cleaners. from my
> experence with paints, if a solvent based ink dries in
> the head there is no way to clean it, it drys hard and
> solvent cleaner would not penatrate the pluged nozzel.
> just stating my thoughts. i may be wrong. it is a
> tough issue. have googled about banner printers but i
> dont know what size printer holes thay have and
> probably could not get the ink in small amount.
> I read the label on the ritz dye about the salt( i am
> not a chemist) but if the salt is desolved the salt
> particles should not be very large and should pass the
> printer holes.please correct me if i am wrong. if i
> have damaged this old epson stylus color II print head
> i may be looking for another one because it converts
> to a flat bed very easy for me.
> every one keep the suggestions coming, i need all the
> help i can get.
> mebo
>

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Ted Inoue

ah yes, after searching I see your posts and discussion.
Hopefully someone will try this out. I have an old epson in a box that
maybe I can sacrifice.
Anybody know where I could get some of that staedtler red in bulk?
I've not yet researched this so still need to Google it...
-Ted


--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Mon, 15 Mar 2004 12:17:16 -0000, Ted Inoue <ted@s...>
> wrote:
>
> > I've been following this thread with interest. Seems that direct
> > printing of a PCB mask is something of the holy grail to us
homebrew
> > types.
> >
> > One thought just occurred to me. Since they sell pens that you can
use
> > to draw your own layouts (i.e. Sharpie pens), how about finding
out
> > what ink is used in those and fill an ink cartridge with that?
> >
> > I know this is obvious, but I've heard lots of other complex
formula
> > that don't seem to work and lead to clogging. The Sharpie ink
seems
> > based on a volatile solvent that dries very fast. The solvent may
also
> > help to resolve head clogging problems as it might be a
self-cleaning
> > solution. One problem I can see is that it may be so fluid that it
> > would just drain out of the cart. But perhaps this could be
resolved
> > by altering the vent ports to allow less air in.
> >
> > Hope somebody figures this out.
> > -Ted
> >
> >
>
> I suggested a few hundred times staedtler red, i have no sharpie pen
here
> and
> i think it is similar.
> Maybe in the other mail from pebo is a comment on it (i still need
to
> read).
> I agree that it is a obvious thing to try as it is known to work as
a
> resist.
>
> ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

On Mon, 15 Mar 2004 17:25:49 -0000, Ted Inoue <ted@...>
wrote:

> ah yes, after searching I see your posts and discussion.
> Hopefully someone will try this out. I have an old epson in a box that
> maybe I can sacrifice.
> Anybody know where I could get some of that staedtler red in bulk?
> I've not yet researched this so still need to Google it...
> -Ted
>


I only know i can have it in 15mL refil for some ????? 3 eur????.
This is not much but it will refill a few pens (and it would print a few
pcbs.)

I have not seen in in bigger quantities. The inks of the other companies
can be
had in big bottles (500mL) off he shelf (100mL and so on also..).. i do
not remember
the price but it is more economical...

However the other pens i tried are by far not as good as the staedtler red.
(I have not tried all colors).

You can see the staedtler refill here:
<http://www.staedtler.de/e4wstaedtler/central/resource.nsf/imgref/6176F6F76F2F425FC1256D12003EDA54/$FILE/487_17.jpg>

You can find it in the USA at www.staedtler.us

http://www.staedtler.co.uk for UK.

and of course .de in germany and .co.at in austria.

http://www.staedtler.com.au is australia.

They might know who sells their products in your country.

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Steve

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Mon, 15 Mar 2004 17:25:49 -0000, Ted Inoue <ted@s...>
> wrote:
>
> > ah yes, after searching I see your posts and discussion.
> > Hopefully someone will try this out. I have an old epson in a box that
> > maybe I can sacrifice.
> > Anybody know where I could get some of that staedtler red in bulk?
> > I've not yet researched this so still need to Google it...
> > -Ted
> >
>
>
> I only know i can have it in 15mL refil for some ????? 3 eur????.
> This is not much but it will refill a few pens (and it would print a
few
> pcbs.)
>
> I have not seen in in bigger quantities. The inks of the other
companies
> can be
> had in big bottles (500mL) off he shelf (100mL and so on also..).. i do
> not remember
> the price but it is more economical...
>
> However the other pens i tried are by far not as good as the
staedtler red.
> (I have not tried all colors).
>
> You can see the staedtler refill here:
>
<http://www.staedtler.de/e4wstaedtler/central/resource.nsf/imgref/6176F6F76F2F425FC1256D12003EDA54/$FILE/487_17.jpg>
>
> You can find it in the USA at www.staedtler.us
>
> http://www.staedtler.co.uk for UK.
>
> and of course .de in germany and .co.at in austria.
>
> http://www.staedtler.com.au is australia.
>
> They might know who sells their products in your country.

Wierd. Staedler.us does not respond so I looked around the Canadian
website instead.

I found out that Staedler sells a pigmented ink for piezo printers
including Epson.

<http://www.staedtler-inkjet.com/>

No, it's probably not the same as the ink in their Lumocolor 313.

I'm having an extraordinarily hard time finding refill ink for
Staedtler. I found it from Higgins for $3.16 for 1 oz (about 28ml?)
for $3.19, pigmented waterproof inks. Cheaper than inkjet ink! May be
too thick, though.

http://www.artsuppliesonline.com/catalog.cfm?cata_id=1848

Rapidograph is a bit more at $3.70 for 3/4 oz. Says it's waterproof
and dries on all surfaces.

http://www.artsuppliesonline.com/catalog.cfm?cata_id=1857

This black refill says it's free-flowing and waterproof. $2.95 for a
2.5 oz bottle.

http://www.artsuppliesonline.com/catalog.cfm?cata_id=1843

All their ink refills:
http://www.artsuppliesonline.com/catalog.cfm?cata_id=1832

Need to find Staedtler ink.

Found a part number: 488 50-2 Searching Staedtler.CA for 488 50 turns
up nothing.

Searching Staedtler.de and Staedtler.co.uk shows up, in 30ml bottles.

Intensive Froogle searching turns up nothing.

Google searches all seem to end on the other side of the pond. It
doesn't seem to be available in bottles in North America!

Success! 2.75 pounds
<http://www.smartshopper.com.cy/cgi-bin/gold/category.cgi?category=search&item=OSMHREST-003&type=store&template=1x9>


Steve

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

> I found out that Staedler sells a pigmented ink for piezo printers
> including Epson.
>
> <http://www.staedtler-inkjet.com/>
>
> No, it's probably not the same as the ink in their Lumocolor 313.

I found that too but have similar suspicions. they also sell ink for
refilling
plotter pens which could, or could not be the same as OHP ink..
Maybe they do answer to such a question honestly if one tries...

>
> I'm having an extraordinarily hard time finding refill ink for
> Staedtler. I found it from Higgins for $3.16 for 1 oz (about 28ml?)
> for $3.19, pigmented waterproof inks. Cheaper than inkjet ink! May be
> too thick, though.

29.573 ml is one fluid oz...
There are many brands in europe too, like Edding and so on.
I have tried a black edding and it didn't work. however this was one with
very strange ink.. i think the edding 3000 was somewhat like your "sharpie"
back in the times of hand drawing. i am sure that at least then it could
withstand
at least ferric cloride... But they had to change the solvents and stuff...


>
> http://www.artsuppliesonline.com/catalog.cfm?cata_id=1848
>
> Rapidograph is a bit more at $3.70 for 3/4 oz. Says it's waterproof
> and dries on all surfaces.
>
> http://www.artsuppliesonline.com/catalog.cfm?cata_id=1857

'n other one.. i definitely did not try a rapidograph ink.
I think they are available here... (somewhere)

>
> This black refill says it's free-flowing and waterproof. $2.95 for a
> 2.5 oz bottle.
>
> http://www.artsuppliesonline.com/catalog.cfm?cata_id=1843
>
> All their ink refills:
> http://www.artsuppliesonline.com/catalog.cfm?cata_id=1832
>
> Need to find Staedtler ink.
>
> Found a part number: 488 50-2 Searching Staedtler.CA for 488 50 turns
> up nothing.
>
> Searching Staedtler.de and Staedtler.co.uk shows up, in 30ml bottles.

interesting, double the amount of the 15ml bottles i get here....

>
> Intensive Froogle searching turns up nothing.
>
> Google searches all seem to end on the other side of the pond. It
> doesn't seem to be available in bottles in North America!
>
> Success! 2.75 pounds
> <http://www.smartshopper.com.cy/cgi-bin/gold/category.cgi?category=search&item=OSMHREST-003&type=store&template=1x9>


that's UK again....
It really looks very much like this refill is hard to get in the US..

Well, i could offer to send one bottle for experimenting but that would
not at all
solve the problem on a long term basis...

I suggest going out there in a good office shop and simply try it out.
there were shops which had the pens on display so that you could try
them...
i do not think they would kick you out if you do a bit of artwork on a pcb
there...
just write down the company and color.
then dump it in etchant and record the process.. (make photos of unetched
board
too to know which disappeared completely)
see which lasts longest and then buy a refill from this company...


What about all this pigments?
i know this are little pieces of color, but hey, we do not really need
coloration.
what holds the pigments together? is there a binder with them or....?
Do you think staedtler red is pigmented? i found no such reference..
do you know how i could thest this without a very high magnifying
microscope?
i would not expect the staedtler red to have problems with fitting through
(after all it comes out through this felt stuff).
i know some edding pens have a slotted nylon tip, and have very large
pigments..

I will try to see some ink through a cheap plastic scope, no idea if i
will see anything at all.


ST

>
>
> Steve

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by pebo festus

thanks st,
imho you compleatly right on you post. i will look at
the steadtler ink, buuuut if it solvent based i am
just leary of tring it, if it is solvent based and it
sets up or dries out in the head i would never get it
out. by the way i havent ordered print heads--- just
carts. i think my heads are open. this is just going
to be trial and error--mostly error. i keep thinking
someone can think of some fluid that will work.it is
going to be diffecult and consume lots of time to try
every thing. if we could get some one in that is
already in the business of flat bed printing to help
us it would save gobs of trial and error experminting.
as far as coloring the etch resist it doesnt have to
be in the mix, its just let you see what your printer
is doing. and yes it may make a difference on how the
resist works.




--- Stefan Trethan <stefan_trethan@...> wrote:
> Please mebo
> ( i hope this is how you like to be called...)
>
> Do not attempt to color the resist any more.
> It is really not needed and it adds a unknown
> variable with
> maybe very bad results. (see the black paint).
> You want to reduce variables, not add them.
>
> I hope it is not too expensive to change this
> head....
>
> I also hope you tell me if you plan to try sharpie
> or staedtler red ink.
>
> The coloring seems to add a huge unpredictable risk,
> you do not
> konw if the color itself, or in combination/reaction
> with the resist
> will cause problems.
>
> On the other hand i do not think the color will
> improove the resist
> functionality.
> It is only for visibility i assume. I do not deny
> that this will be a very
> important
> feature in the final mixture but i do think that we
> have time then to try
> which colorant
> is suited for the resist.
>
> When you have the heads i would first try the
> acrylic floor polish.
> try it as it comes out from the can (it it is the
> same density as the bona
> polish
> i have it seems not to be too thick).
> You may also try to dilute it first to 50% or 25%,
> to be sure it will not
> clog the head.
> if the resist layer is too thin then (which i
> expect) you can try thicker
> stuff.
>
> You should be able to see the layer of clear laquer
> if you hold the board
> at an angle
> against a light source. of course you also should
> immediately see the
> result in the etchant.
> Make sure the polish is completely dry (maybe dry in
> a oven).
>
>
> Best luck with your next experiment..
>
> ST
>
>
>
> On Sun, 14 Mar 2004 18:50:03 -0800 (PST), pebo
> festus <mebo31@...>
> wrote:
>
> > yes st, i mixed mop&glo with artist black acrylic
> > paint,the paint seperated from the water in the
> > mixture. I could not get the printer to print, so
> I
> > took the cart apart(prized the top off) took out
> the
> > spoung and there is a micro screen over the orfice
> > going to the print heads. the paint pluged it
> up.had a
> > dickens of a time getting that screen clean. then
> i
> > cleaned my print head again and it was kinda
> stopped
> > up ,but got ammonia through it again. went to the
> > store and bought a bottle of black ritz dye, put
> some
> > of it and some more mop&glow in the cart and it
> still
> > didnt work out. i will order 2 new carts monday
> and
> > see if the regular ink will still print. will take
> two
> > or three days for them to arrive. am thinking now
> of
> > changing from mop&glo to Johnsons acrylic liquid
> floor
> > wax with just a touch of ritz dye in it. will see
> if
> > that stops things up.now that i know how the carts
> are
> > made it will be easier to work with them.i have a
> air
> > compresser and can blow back through the screen in
> the
> > cart and maybe clean it. i have seen on other
> posts
> > that some folks are looking at alps heated impact
> > printers, if i can find one that works one may get
> > into that also.
> > mebo
> >
> >
> >
> >
> >
> >
> >
> >> ok, thanks.. (is laytex a company or what? is it
> >> latex paint?????????)
> >>
> >> good luck... hope you get that thing cleaned out
> >> again for further
> >> trying..
> >>
> >> can you get your hands on red staedtler ink?
> >> i really think this is a good candidate..
> >>
> >> Did you try the mop'n glo again with the flushed
> >> head?
> >>
> >> Please describe what the current status is,
> >> is the problem the layer thickness/consistency?
> >> or are not all jets printing full amount?
> >>
> >>
> >> I would first try acrylic paint, like floor
> polish,
> >> as thick at it fits through,
> >> then i would try the staedtler red,
> >> and maybe another option could be UV curing ink.
> >> (i think it allows slightly thicker layers with
> the
> >> same initial amount
> >> because there is no solvent, or is there?)
> >>
> >> Keep us informed..
> >>
> >> ST
> >>
> >>
> >> ------------------------ Yahoo! Groups Sponsor
> >>
> >> Be sure to visit the group home and check for new
> >> Bookmarks and files:
> >> http://groups.yahoo.com/group/Homebrew_PCBs
> >> Yahoo! Groups Links
> >>
> >>
> >> Homebrew_PCBs-unsubscribe@yahoogroups.com
> >>
> >>
> >>
> >
> >
> > __________________________________
> > Do you Yahoo!?
> > Yahoo! Mail - More reliable, more storage, less
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> > http://mail.yahoo.com
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> >
> >
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> >
> >
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>
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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

I did look at some staedtler red and some edding 3000 red through a cheap
microscope.
it did actually focus at x1000 and it was still no particles or such to be
seen.
i have no idea if i could actually see particles at this magnification in
a pigmented ink.
have no pen here that clearly says pigmented and so i have no comparision.

How large would those particles be?
(and would i see that at x1000? i know nothing about microscopes....)


well, a hair fills the whole viewing area at x1000
and it is about 50micrometer thick, right?
if make that x1000 it is 5mm... well, that could be about right..
( i guess this is the size of the image inside the microscope tube)

that means i could maybe distinguish particles of 5 microns, or less...
(maybe 1 micron).
lights wavelength is at 500nm that means 1 micron is a bit unlikely to be
seen in a plastic
microscope.... i dunno, never was good at optics...

http://www.colorbat.com/PDF_Files/6016_Pigmented_Particle_Size.pdf

The maximum particle size in the pigments is
about 0.19 microns and the Epsonâ„¢ print head
nozzles are 25 microns plus or minus 5 microns
(it varies a little from one model to another).
The ink is filtered to 0.45 microns and does not
cause clogging. It stays in suspension. It is rare
for an Epsonâ„¢ print head to clog, 99% of the so
called clogs are air/foam related problems, or a
lack of proper print head cleaning during and
after extended use.


so the heads are 25micron, which would fill half the viewing area in my
plastic microscope.
i should well be able to see if there are any particles in the ink which
do not fit through.
i could not see ANY particles, it was completely uniform (and it was
focused, i could see dust
enameled in the ink).

This tells me the staedtler red and the edding 3000red should fit through
a epson head
without problems.

Are there any ideas how to filter ink?
maybe if we have a pigmented ink we can just filter out anything above 0.5
microns too?

st

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Steve

Epson heads are not user-replaceable. It requires a bit of software to
align the heads (and there's a voltage number written on the side with
a felt-tip pen) and a bit of work on a DOS computer to realign everything.

You can remove the head for cleaning. Take the cartridge out, there is
a spring that must be removed (careful!) and a screw. The ribbon cable
just pulls out, it's not locked in. Hardest part is getting the ribbon
cable back in.

Be careful not to move any of those levers around the head holder.

BTW, if you want to try it, the Epson UK site has that bit of software
on it. Another thing not available in North America... :'/

Steve

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> thanks st,
> imho you compleatly right on you post. i will look at
> the steadtler ink, buuuut if it solvent based i am
> just leary of tring it, if it is solvent based and it
> sets up or dries out in the head i would never get it
> out. by the way i havent ordered print heads--- just
> carts. i think my heads are open. this is just going
> to be trial and error--mostly error. i keep thinking
> someone can think of some fluid that will work.it is
> going to be diffecult and consume lots of time to try
> every thing. if we could get some one in that is
> already in the business of flat bed printing to help
> us it would save gobs of trial and error experminting.
> as far as coloring the etch resist it doesnt have to
> be in the mix, its just let you see what your printer
> is doing. and yes it may make a difference on how the
> resist works.
>

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-15 by Stefan Trethan

On Mon, 15 Mar 2004 13:41:53 -0800 (PST), pebo festus <mebo31@...>
wrote:

> thanks st,
> imho you compleatly right on you post. i will look at
> the steadtler ink, buuuut if it solvent based i am
> just leary of tring it, if it is solvent based and it
> sets up or dries out in the head i would never get it
> out. by the way i havent ordered print heads--- just
> carts. i think my heads are open. this is just going
> to be trial and error--mostly error. i keep thinking
> someone can think of some fluid that will work.it is
> going to be diffecult and consume lots of time to try
> every thing. if we could get some one in that is
> already in the business of flat bed printing to help
> us it would save gobs of trial and error experminting.
> as far as coloring the etch resist it doesnt have to
> be in the mix, its just let you see what your printer
> is doing. and yes it may make a difference on how the
> resist works.

Honestly i do not see any reason why the solvent based is worse.
if the acrylic dries up you are in exactly the same sort of trouble.
However i aree the solvent based ink might be a bit faster to dry up.
(But remember staedtler says it is "Dry proof". no idea what happens if you
go and sue them because it DID dry in your inkjet ;-) )

i really hope your print heads are open, but some evil voice says me they
are
probably not. you may start to soak them already until the carts arrive to
keep them nice and wet... then maybe make a few prints with ammonia or
water, or
whatever is your cleaning fluid...

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by pebo festus

--- In Homebrew_PCBs@yahoogroups.com, "wheedal99" <wheedal@h...>
wrote:
> You have seen that Staedtler does produce inkjet carts/refill ink
for
> the large designjet and epson large format printers. I doubt
they're
> the lumocolor red 31x type, but who knows...
>
> http://www.inkjet.staedtler.de


I have sent staedtler an email asking if they have an ink for an
piezo ink printer that i can print on printed curcuit board with a
flat bed printer and stay on during the etch. we will see if they
respond.
i have new ink carts ordered, while i am waiting for them to come in
i am toying with FUTURE floor finish, its the acrylic liquid made by
S.C Johnson. put some small marks on a pcb, will see how water proof
it is when it drys. tryed mixing some higgins black india ink with it
(didnt work) also rit dye(didnt work). put some thin marks with food
coloring(green) but has propalene glycol in it, will see if it is
water proof if it drys.


1 hour later.

the marks i put on the pcb didnt wash off, even rubbed it with my
finger under water,even the mixture with the food coloring with
glycol in it dryed. its evening here now--will etch tomorrow and see
if it holds up. if it does then will try to run it throught the print
head, but will have to clean it after i am done with the printing
because that stuff is tough.could not scrape it with my finger nail
from the pcb.i cleaned the pcb with soap,water and steel wool, then
cleaned it with windex before i put the marks on the board.
the future is kinda thin so i may have to put a piece of thin felt on
the head park to keep it from draining out, also this may help to
keep the head from drying. will try adding more food coloring(with
glycol in it) to keep it from drying to fast.

as stated in an earlier post, if any thing drys in the print head,
its all over but the gnashing of teeth.

i may have to get the bubble jet printer back out to see how it would
work for printing on pcb with future floor polish ;<).
mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
...
> the future is kinda thin so i may have to put a piece of thin felt on
> the head park to keep it from draining out, also this may help to
> keep the head from drying. will try adding more food coloring(with
> glycol in it) to keep it from drying to fast.

Don't place anything on the park pad! Anything that touches the head
will wick liquid out, and anything that overhangs the rubber seal will
cause it to dry out.

Maybe the heads will have to be flushed with a water/ammonia mixture
when you are done printing for the day. Even dried Future dissolves in
household ammonia, although I wouldn't guarantee it if it dried in the
heads.

Steve

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by gk_impala

Hello Mebo,

The latex paint you tried, was that normal house paint, or a special
type?

I ask because I still have some special latex ink here, which was
designed for rotring / steadler plotting pens. I once tried it on a
PCB and it seemed to be reasonable waterproof and adhere to the
copper. I also tried because I want to test already for a long time
printing using inkjet on a PCB.
The make of it was rotring, but I don't know if it's still in
production. Probably not, since most plotters are not.
I will hopefully find the time to continue on this project as well in
the near future, but in the meanwhile I follow your progress with
great interrest.
I also know this company http://www.refillink.com/ do waterproof
inks, at least they do in the netherlands. It's for an HP type of
printer, but might as well work in the epson. Or maybe the stated
printer can be converted as well.
I will try to get some of this ink sometime to try it.


Regards,

Gertjan

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by ballendo

Hello,

Is the staedtler red ink that's available for inking rubber stamps
what we're talking about here?

I had only seen results using a staedtler pen. Has the raw ink been
tested and found to work? (not asking about in an ink jet, just
asking if the ink itself survives the etchant...

Thank you in advance,

Ballendo


--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> Acrylic paint is water cleanup yet as Stefan points out, once it's
dry
> that's it.
>
> And the whole point is to use something that -can't- be dissolved by
> water once it's dry.
>
> Skip the color for now. As pointed out, test coverage by a quick
etch.
>
> And it might help the Mop and Glo to stay in place if (as suggested
> here much earlier) after you clean the board, give it a very short
> etch in the acid, rinse and print. This will give the surface a
> slightly rough finish which may prevent the Mop and Glo from simply
> beading up.
>
> My point about the salt is that you don't know how Mop and Glo is
> going to react with the salt. Salt breaks up into sodium and
chloride,
> that is how all salts dissolve in water. This means they tend to be
> very reactive.
>
> Also, a word about pigments: pigments are made of chunks of color.
> Pigmented inks made for inkjet printers are specially made to have
> chunks small enough to go through the whole kit-and-kaboodle. Paint
is
> not.
>
> If I weren't so broke, I'd have tried to get some of the Staedler
Red
> ink and tried it myself. It might mean the printer has to be cleaned
> more often, but that's a small price.
>
> Steve
>
> --- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...>
wrote:
> > I feel one would need to stay with ink fluids that can
> > be cleaned with water solvent cleaners. from my
> > experence with paints, if a solvent based ink dries in
> > the head there is no way to clean it, it drys hard and
> > solvent cleaner would not penatrate the pluged nozzel.
> > just stating my thoughts. i may be wrong. it is a
> > tough issue. have googled about banner printers but i
> > dont know what size printer holes thay have and
> > probably could not get the ink in small amount.
> > I read the label on the ritz dye about the salt( i am
> > not a chemist) but if the salt is desolved the salt
> > particles should not be very large and should pass the
> > printer holes.please correct me if i am wrong. if i
> > have damaged this old epson stylus color II print head
> > i may be looking for another one because it converts
> > to a flat bed very easy for me.
> > every one keep the suggestions coming, i need all the
> > help i can get.
> > mebo
> >

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by Stefan Trethan

On Tue, 16 Mar 2004 12:51:45 -0000, ballendo <ballendo@...> wrote:

> Hello,
>
> Is the staedtler red ink that's available for inking rubber stamps
> what we're talking about here?
>
> I had only seen results using a staedtler pen. Has the raw ink been
> tested and found to work? (not asking about in an ink jet, just
> asking if the ink itself survives the etchant...
>
> Thank you in advance,
>
> Ballendo
>

We are talking about the refill for the pen.
i tried and it is the same.
dunno about the stamp pad ink..

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by Stefan Trethan

> I have sent staedtler an email asking if they have an ink for an
> piezo ink printer that i can print on printed curcuit board with a
> flat bed printer and stay on during the etch. we will see if they
> respond.

They will read "PCB" and "Inkjet" and quickly write "we can not help with
that".
Maybe it would be better to ask more subtle questions, like if the ink is
pigmented,
and what the maximum pigment size is...
But maybe you are very lucky and the mail reaches the right guy...

> i have new ink carts ordered, while i am waiting for them to come in
> i am toying with FUTURE floor finish, its the acrylic liquid made by
> S.C Johnson. put some small marks on a pcb, will see how water proof
> it is when it drys. tryed mixing some higgins black india ink with it
> (didnt work) also rit dye(didnt work). put some thin marks with food
> coloring(green) but has propalene glycol in it, will see if it is
> water proof if it drys.
>
>


Future was tested before i think, and found working.
i tested the bona stuff and it worked, which is about the same.

However as i have said before this test can NOT tell you if it will work,
it can only tell if it will not work. the inklayer you apply by hand
is thicker than what you can expect from the piezo.

I also notice you are not to be talked off using colorant, well, have it
your way if you must it is your time and money after all ;-) .


Good luck... floor polish would definitely be very nice if it works because
it is so cheap.


ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by pebo festus

ok, staedtler responded, but wanted more info, told
them what printer, piezo head , printing on pcb,
needed to be water proof for the etch we will see what
their response is.

the laytex paint i tryed to use was a paste, it came
in a tube, use by artist.--- didnt work.
tryed FUTURE and higgin india black in---didnt work.

to st--- i need a little color to seee what the
printer is doing. have come to the conclusion that
steve is right, glycol and FUTURE will dry and make a
good resist, just gotta try different amounts of
glycol in the mix, then see how it prints on the
board.

the glycol has a slight pinkish color in it so
probably will not add additonal color.also the glycol
is thicker--should stay in the cart better.

folks there are lot of questions, i dont have time to
try them all, if you have an idea ---try it and let us
know how it works out. i have one piezo head printer
and it takes time to try a ink, then i have to clean
the heads, if they stop up i will be out of business
untill i can get another printer that i can convert to
flat bed.
i am thinkful for every one for the suggestions this
is just going to take time---and still may not work.
mebo

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Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by Steve

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> ok, staedtler responded, but wanted more info, told
> them what printer, piezo head , printing on pcb,
> needed to be water proof for the etch we will see what
> their response is.

Progress! ;')

> the laytex paint i tryed to use was a paste, it came
> in a tube, use by artist.--- didnt work.
> tryed FUTURE and higgin india black in---didnt work.

No wonder! Pigment particles in that kind of paint are very large.

> to st--- i need a little color to seee what the
> printer is doing. have come to the conclusion that
> steve is right, glycol and FUTURE will dry and make a
> good resist, just gotta try different amounts of
> glycol in the mix, then see how it prints on the
> board.
>
> the glycol has a slight pinkish color in it so
> probably will not add additonal color.also the glycol
> is thicker--should stay in the cart better.

I didn't mean to add glycol, I meant to add inkjet ink which
-contains- glycol. A little black ink goes a long, long ways, you only
need enough to just be able to see it, right?

> folks there are lot of questions, i dont have time to
> try them all, if you have an idea ---try it and let us
> know how it works out. i have one piezo head printer
> and it takes time to try a ink, then i have to clean
> the heads, if they stop up i will be out of business
> untill i can get another printer that i can convert to
> flat bed.

We are definitely all watching. I wish I had the time and cash right
now to be doing my own tests.

I did print some Tshirt ink on some 100% cotton and washed the cotton
(I do imprinted garments) and soaked it in water, then washed it. The
ink stayed in. This is without any pretreatments or post treatments.

The question then is, will it stay on a copper PCB or will it pool and
run?

I have a black only Epson 800 here, and a color Epson 800 (with a
burnt out black head). I do plan on trying some tests of my own.

Steve

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by pebo festus

i etched the pcb with marks i put on it with FUTURE,worked
great,also the mixture with the glycol worked great, but didnt put
much glycol in the mix. buuuut as some one had posted-it has to go
through the printer onto the board then etch to get REAL results.
i think you may be onto something steve-- putting sone of the
printers own ink into the mixture. looking at the MSDS on printer
inks , it has some alcohol in it. whitch i think would have a
thinning effect. which may be ok. i think i will try some glycol
consentrate that i have cooked down from camp trailer antifreeze.
will start out with a small amount in the FUTURE POLISH, then
increase it untill it get to a point it does not dry very fast.
i am doing all of this untill the new carts arrive.
mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-16 by joshdewinter

Hey guys,
I have been following this conversation back since its inception,
and am very excited that this may work better than toner transfer.
Can you tell me what type of printers are being used? Could the
standard ol' HP inkjet be modified with some kind of rear-entry that
turns it into a flat bed?


-Josh

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-17 by pebo festus

well i converted a epson stylus 880 to flatbed but i
didnt have any carts to try the printer before
conversion. in the end the printer didnt work. soooo

i had a epson stylus color II i converted--and it
works a lot better on pcb feed than the 880 did. i had
to take the top off and remove the paper holder, take
the control buttons loose from the top. then came the
hard part---there are 2 plastic panels about 3/4 inch
high on the back. i had to use a propane torch to heat
a 1" putty knife and heat the knife and cut the
plastic low enough to get a pcb streight through.
on the front i had to slide the little rubber rollers
to the left side. then there are some bumps on the
paper suppor just behind the little rollers and after
the main big roller. had to cut or file those down
flat. THEN on the left side on the II there is a
height adjustment for the print heads,it only moves
the print heads about 1/2 enough to get the pcb
through without the head hanging on the board.so i
unconnected the bar lever for the height adjustment
and bent one prong so i could raise the heads as high
as i could.

josh---i think all are in agreement that the epson
piezo heads is the best way to go. am thinking
different nodels of epson are designed different.
sooooo what ever model you can use you will have to
work it out on that perticular model. just take you
time and study the situation for each problem and work
it out. those epson folks are good at hiding screws
and latches, sooo look at every thing real close.
there is also manuals online you might want to look
up.
if you look at previos posts some one has given a link
so you can see how your printer comes apart.
have fun and keep us posted.
mebo





--- joshdewinter <joshdewinter@...> wrote:
> Hey guys,
> I have been following this conversation back since
> its inception,
> and am very excited that this may work better than
> toner transfer.
> Can you tell me what type of printers are being
> used? Could the
> standard ol' HP inkjet be modified with some kind of
> rear-entry that
> turns it into a flat bed?
>
>
> -Josh
>
>
>


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Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-17 by gmanca101

I too have followed this thread and I am not sure if the question was
brought up but I am wondering(as always;) if the inkjet printing of a
pcb will allow for double-sided images? I fear that loading a pcb
from the back will fudge with the roller timings. Hopefully I'm wrong
because I just got an epson stylus II to mess with...

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-17 by pebo festus

with the experence i have had with the II, it will not
work,the the roller feed IMHO is just to sloppy.but
you might find a work around. i have got to get the
right resist through the printer working before going
to the next hurtle.
mebo



--- gmanca101 <gmanca101@...> wrote:
> I too have followed this thread and I am not sure if
> the question was
> brought up but I am wondering(as always;) if the
> inkjet printing of a
> pcb will allow for double-sided images? I fear that
> loading a pcb
> from the back will fudge with the roller timings.
> Hopefully I'm wrong
> because I just got an epson stylus II to mess
> with...
>
>


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Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-17 by Stefan Trethan

On Wed, 17 Mar 2004 06:30:15 -0800 (PST), pebo festus <mebo31@...>
wrote:

> with the experence i have had with the II, it will not
> work,the the roller feed IMHO is just to sloppy.but
> you might find a work around. i have got to get the
> right resist through the printer working before going
> to the next hurtle.
> mebo
>
>

I would have guessed it does work.
there is a optical sensor for the paper edge in hp printers, one
would expect epson to use a similar system.

then you only need to adjust the other distance, which would be much easier
with a real "table" for the pcb.
(e.g. a pig plate that is moved by the rollers)

even with a piece of paper it is hard to print on the same spot twice,
but i think it would work properly if you make a flat carriage on a rail
in the center, just let the carriage rest on the drive roller.... (use
small pressure wheels on the side to keep contact to the rollers)
for a rail one could use a drawer slide, or simply a piece of steel and
a brass bracket soldered/glued to the underside of the pcb which forms the
carriage.


i do think the printer starts to print a exact number of steps after the
optical
sensor contact and a exact distance away from the border.
It is just a question of putting the pcb in the right place.

ST

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-18 by pebo festus

stefan-- are you still looking for a manual for a panasonic kx p2123?-
- if so here is a link. i just came by one and it looks promising for
pcb, has bottem feed streight through.

http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc
ts/Dot_Matrix_Printers/KX/P2123/B2123.pdf





--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Wed, 17 Mar 2004 06:30:15 -0800 (PST), pebo festus <mebo31@y...>
> wrote:
>
> > with the experence i have had with the II, it will not
> > work,the the roller feed IMHO is just to sloppy.but
> > you might find a work around. i have got to get the
> > right resist through the printer working before going
> > to the next hurtle.
> > mebo
> >
> >
>
> I would have guessed it does work.
> there is a optical sensor for the paper edge in hp printers, one
> would expect epson to use a similar system.
>
> then you only need to adjust the other distance, which would be
much easier
> with a real "table" for the pcb.
> (e.g. a pig plate that is moved by the rollers)
>
> even with a piece of paper it is hard to print on the same spot
twice,
> but i think it would work properly if you make a flat carriage on a
rail
> in the center, just let the carriage rest on the drive roller....
(use
> small pressure wheels on the side to keep contact to the rollers)
> for a rail one could use a drawer slide, or simply a piece of steel
and
> a brass bracket soldered/glued to the underside of the pcb which
forms the
> carriage.
>
>
> i do think the printer starts to print a exact number of steps
after the
> optical
> sensor contact and a exact distance away from the border.
> It is just a question of putting the pcb in the right place.
>
> ST

Re: Standard inkjet inks for etch resist?(kx p2123 printer)

2004-03-18 by pebo festus

oops the link didnt work---but the manual is online.





--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...>
wrote:
> stefan-- are you still looking for a manual for a panasonic kx
p2123?-
> - if so here is a link. i just came by one and it looks promising
for
> pcb, has bottem feed streight through.
>
>
http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc
> ts/Dot_Matrix_Printers/KX/P2123/B2123.pdf
>
>
>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
> <stefan_trethan@g...> wrote:
> > On Wed, 17 Mar 2004 06:30:15 -0800 (PST), pebo festus
<mebo31@y...>
> > wrote:
> >
> > > with the experence i have had with the II, it will not
> > > work,the the roller feed IMHO is just to sloppy.but
> > > you might find a work around. i have got to get the
> > > right resist through the printer working before going
> > > to the next hurtle.
> > > mebo
> > >
> > >
> >
> > I would have guessed it does work.
> > there is a optical sensor for the paper edge in hp printers, one
> > would expect epson to use a similar system.
> >
> > then you only need to adjust the other distance, which would be
> much easier
> > with a real "table" for the pcb.
> > (e.g. a pig plate that is moved by the rollers)
> >
> > even with a piece of paper it is hard to print on the same spot
> twice,
> > but i think it would work properly if you make a flat carriage on
a
> rail
> > in the center, just let the carriage rest on the drive roller....
> (use
> > small pressure wheels on the side to keep contact to the rollers)
> > for a rail one could use a drawer slide, or simply a piece of
steel
> and
> > a brass bracket soldered/glued to the underside of the pcb which
> forms the
> > carriage.
> >
> >
> > i do think the printer starts to print a exact number of steps
> after the
> > optical
> > sensor contact and a exact distance away from the border.
> > It is just a question of putting the pcb in the right place.
> >
> > ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-18 by Stefan Trethan

On Thu, 18 Mar 2004 03:23:50 -0000, pebo festus <mebo31@...> wrote:

> stefan-- are you still looking for a manual for a panasonic kx p2123?-
> - if so here is a link. i just came by one and it looks promising for
> pcb, has bottem feed streight through.
>
> http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc
> ts/Dot_Matrix_Printers/KX/P2123/B2123.pdf
>
>

Oh, thanks...
It is only i do not remember ever needing that manual?
Maybe i did forget it simply. Now i do not feel the need
to read that manual, if you know why i need it please tell me.

However it is a dot matrix printer, i do not think you can print
resist with it?

thanks

ST

Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-18 by pebo festus

ok sefan-- just seen the name on a diffrent bb,
thought it might be you.
mebo

--- Stefan Trethan <stefan_trethan@...> wrote:
> On Thu, 18 Mar 2004 03:23:50 -0000, pebo festus
> <mebo31@...> wrote:
>
> > stefan-- are you still looking for a manual for a
> panasonic kx p2123?-
> > - if so here is a link. i just came by one and it
> looks promising for
> > pcb, has bottem feed streight through.
> >
> >
>
http://www.support.panasonic.co.uk/sys/ttips/Panasonic/Computer_Produc
> > ts/Dot_Matrix_Printers/KX/P2123/B2123.pdf
> >
> >
>
> Oh, thanks...
> It is only i do not remember ever needing that
> manual?
> Maybe i did forget it simply. Now i do not feel the
> need
> to read that manual, if you know why i need it
> please tell me.
>
> However it is a dot matrix printer, i do not think
> you can print
> resist with it?
>
> thanks
>
> ST
>
>
> Be sure to visit the group home and check for new
> Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
> Homebrew_PCBs-unsubscribe@yahoogroups.com
>
>
>


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Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-24 by Steve

It's useable in any Epson, but is useless for our purposes.

Dye sublimation ink works by printing onto a piece of paper. Then the
paper is placed in contact with either a polyester fabric, or a
polymer coated object and heated to around 400F. The dyes in the ink
vaporize, and when they hit the polymer they go directly from gas to
solid, hence "sublimation". If the object is not coated with a
polymer, nothing gets transfered.

Steve

--- In Homebrew_PCBs@yahoogroups.com, Richard Mustakos
<rmustakos@a...> wrote:
> I stumbled across a site that talks about Die Sublimation Inkjet ink
> "SubliBrite".
> It looks like it is usable in an epson-800, but it's $175.00 for a
black
> cartridge. Site:
> <http://www.bay-mall.net/stores/Sub/ink.html>
> Richard

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-26 by pebo festus

I posted a pic of a pcb i printed on. did the printing with the
regular ink in the cart. of course it isnt resist proof. just wanted
to see if could get the pcb through the printer. you can view the
results. going to be away for a while but will start trying different
resist combinations when i return.
mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-26 by Steve

Very cool! I like the step-by-step way you are testing this.

I just got an Epson 600 from a thrift store a few days ago, got it
cleaned up and printing perfectly. Next step is to modify it for
straight through printing.

Steve

--- In Homebrew_PCBs@yahoogroups.com, "pebo festus" <mebo31@y...> wrote:
> I posted a pic of a pcb i printed on. did the printing with the
> regular ink in the cart. of course it isnt resist proof. just wanted
> to see if could get the pcb through the printer. you can view the
> results. going to be away for a while but will start trying different
> resist combinations when i return.
> mebo

Re: Standard inkjet inks for etch resist?(yeeeehaaa))

2004-03-30 by Richard Mustakos

I've got some solder and rosin flux powders coming through the mail. It
looks like I might have to flat bed that printer pretty soon after all.
I might get time to chop it this weekend, but we are spring cleaning
the garage this weekend (and last weekend, and the one before...), so
it's a toss up on whether I get the time or not. If I do, I'll try
printing some circuits onto cardboard. I think the flux will be enough
to stick the solder to the board that way. I just hope the solder melts
@ < 451 F. I don't want a half baked toaster oven on my hands. That's
about 230 C, isn't it? I'm going to have to check the data sheets
first, maybe I will be doing it on roughened FR4. I'll keep you posted.
Richard

Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-28 by Alan J. Franzman

--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> I just got an Epson 600 from a thrift store a few days ago, got it
> cleaned up and printing perfectly. Next step is to modify it for
> straight through printing.

Re: straight-through printing,

I was in Best Buy the other day and saw some DVD-Rs that said
something on the package about having a specially prepared surface
that could be directly printed by inkjet. This was news to me, so I
went over to the printer section and sure enough, the Epson Stylus
Photo R300 (and more expensive R300M) can print directly on a disc!
A Google search reveals several other machines that can do this too;
many are specialized devices that *only* print on discs, while
others are general-purpose printers too. Most of them seem to use a
special tray to align the discs to the printhead. Here's one that
prints up to 6 discs at a time on a tray that feeds *through* the
printer from back to front:
http://www.datadev.com/rim13c.html

Too bad it's so expensive! I think in the next couple of years,
something like this will start to become available used at low cost.
It looks like the tray could easily be adapted for circuit boards,
no cutting up or modifying the printer case and drive mechanism to
handle boards. You could probably buy a replacement tray from the
manufacturer and keep the disc-printing ability by swapping trays.
It may be necessary to fiddle with hardware to make a combo paper/
disc printer feed its disc tray even when you tell it you're
printing paper, so you can get full coverage of your board rather
than just 5 inch circles (I'm sure the built in software is designed
not to allow printing on the tray itself), but this shouldn't be too
hard...

A.J.

Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-28 by Cristian

Are you sure it prints on copper and the ink is etch-resist?
Cristian

>Re: straight-through printing,
><http://www.datadev.com/rim13c.html>http://www.datadev.com/rim13c.html
>
>A.J.


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Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-28 by Roy J. Tellason

On Wednesday 28 April 2004 02:42 am, Alan J. Franzman wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
> > wrote:
> > I just got an Epson 600 from a thrift store a few days ago, got it
> > cleaned up and printing perfectly. Next step is to modify it for
> > straight through printing.
>
> Re: straight-through printing,
>
> I was in Best Buy the other day and saw some DVD-Rs that said
> something on the package about having a specially prepared surface
> that could be directly printed by inkjet. This was news to me, so I
> went over to the printer section and sure enough, the Epson Stylus
> Photo R300 (and more expensive R300M) can print directly on a disc!
> A Google search reveals several other machines that can do this too;
> many are specialized devices that *only* print on discs, while
> others are general-purpose printers too. Most of them seem to use a
> special tray to align the discs to the printhead. Here's one that
> prints up to 6 discs at a time on a tray that feeds *through* the
> printer from back to front:
> http://www.datadev.com/rim13c.html
>
> Too bad it's so expensive! I think in the next couple of years,
> something like this will start to become available used at low cost.
> It looks like the tray could easily be adapted for circuit boards,
> no cutting up or modifying the printer case and drive mechanism to
> handle boards. You could probably buy a replacement tray from the
> manufacturer and keep the disc-printing ability by swapping trays.
> It may be necessary to fiddle with hardware to make a combo paper/
> disc printer feed its disc tray even when you tell it you're
> printing paper, so you can get full coverage of your board rather
> than just 5 inch circles (I'm sure the built in software is designed
> not to allow printing on the tray itself), but this shouldn't be too
> hard...

This reminds me of why one of the numerous dot-matrix printers I've used was
my favorite -- the Oki 92 I still have. Not only was it a fairly good
performer in general, it also had the ability to do a "straight-through"
paper path as you describe, only vertically. This made it handy for such
things as post cards, etc. It wasn't the only one that I've used that had
this capability, but I can't remember what others were.

Now I'm wondering if it's possible to use hardware designed to handle fanfold
paper to deal with boards. :-) I sure have enough of that sort of hardware
around, from scrapping printers out, and adapting this to work would give
you one axis of a CNC setup. Maybe some sort of a "carrier" would work?

Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-28 by Steve

--- In Homebrew_PCBs@yahoogroups.com, "Alan J. Franzman"
<a.j.franzman@v...> wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
> wrote:
> > I just got an Epson 600 from a thrift store a few days ago, got it
> > cleaned up and printing perfectly. Next step is to modify it for
> > straight through printing.
>
> Re: straight-through printing,
>
> I was in Best Buy the other day and saw some DVD-Rs that said
> something on the package about having a specially prepared surface
> that could be directly printed by inkjet. This was news to me, so I
> went over to the printer section and sure enough, the Epson Stylus
> Photo R300 (and more expensive R300M) can print directly on a disc!
> A Google search reveals several other machines that can do this too;
> many are specialized devices that *only* print on discs, while
> others are general-purpose printers too. Most of them seem to use a
> special tray to align the discs to the printhead. Here's one that
> prints up to 6 discs at a time on a tray that feeds *through* the
> printer from back to front:
> http://www.datadev.com/rim13c.html
>
> Too bad it's so expensive! I think in the next couple of years,
> something like this will start to become available used at low cost.
> It looks like the tray could easily be adapted for circuit boards,
> no cutting up or modifying the printer case and drive mechanism to
> handle boards. You could probably buy a replacement tray from the
> manufacturer and keep the disc-printing ability by swapping trays.
> It may be necessary to fiddle with hardware to make a combo paper/
> disc printer feed its disc tray even when you tell it you're
> printing paper, so you can get full coverage of your board rather
> than just 5 inch circles (I'm sure the built in software is designed
> not to allow printing on the tray itself), but this shouldn't be too
> hard...

I wish -I- had thought to package an Epson with a CD tray, call it a
different name, and sell it for 3x the price... ;') That sure looks
like an Epson.

Someone else is selling Epson 1520's with a 6 CD tray. They may or may
not have had to modify the 1520, don't know. Someone on a DVD forum
modified a Lexmark to print on CDs.

I have brought this up in the past: how about one of those wax CD
printers? Wax is definitely waterproof. The question would be, does
the printed wax 100% cover? Thermal wax CD printers don't require
special coatings. As you say, different printing software and modify
the tray to take square PCBs. Or the novelty of CD shaped PCBs.

There are a few very cheap single color thermal wax CD printers, just
over $100 USD.

Steve

Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-28 by Alexandre Souza

> I have brought this up in the past: how about one of those wax CD
> printers? Wax is definitely waterproof. The question would be, does
> the printed wax 100% cover? Thermal wax CD printers don't require
> special coatings. As you say, different printing software and modify
> the tray to take square PCBs. Or the novelty of CD shaped PCBs.

I saw it with my eyes, that the earth may eat.

Someone (I was in a company doing a job) modified an epson printer -
that old 600 ones - to print a circuit board.

The man explained to me: He took an old scanner, and the upper part of
an epson printer. Modified the scanner to "run" the upper part of the
printer thru a table. He diluted pen ink (that pen we use to draw circuits)
and filled the black cartridge with that ink. He said it worked flawlessly,
and show it working to me. JUST AMAZING. So bad he didn't let me take a
photo, since it was "his invention" and he wants to sell it.

I keep saying it IS possible, and I have a canon BJC-something I'll try
to make work this way.

Greetz from Brazil, and keep the faith.


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Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-29 by Alan J. Franzman

--- In Homebrew_PCBs@yahoogroups.com, Cristian <bip@f...> wrote:
> Are you sure it prints on copper and the ink is etch-resist?

I never said it did, and that wasn't the point of my post. The
point was that some people are going through a good deal of effort
cutting up casings and modifying feed mechanisms of standard
printers, which normally print paper by curling it around rollers
and such. All this effort becomes completely unnecessary if one
starts with a printer that can already handle rigid, thick materials
such as CDs and DVDs.

A.J.

Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-29 by Steve

I think I was thinking that one of the cheap ones (Office Depot has
one) would be good to try it on a PCB, because they are all about 200dpi.

Hmm... best I can find in wax thermal CD printer is 305dpi and that is
over $2,000 USD. Never mind.

Steve

--- In Homebrew_PCBs@yahoogroups.com, "ballendo" <ballendo@y...> wrote:
> Steve,
>
> Which ones?
>
> Ballendo
>
>
> In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...> wrote:
> >There are a few very cheap single color thermal wax CD printers, just
> >over $100 USD.

Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-30 by ballendo

I saw one recently, that was a xerox? or HP 4040--I think

It used big "bricks" of wax...

Ballendo

--- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> I think I was thinking that one of the cheap ones (Office Depot has
> one) would be good to try it on a PCB, because they are all about
200dpi.
>
> Hmm... best I can find in wax thermal CD printer is 305dpi and that
is
> over $2,000 USD. Never mind.
>
> Steve
>
> --- In Homebrew_PCBs@yahoogroups.com, "ballendo" <ballendo@y...>
wrote:
> > Steve,
> >
> > Which ones?
> >
> > Ballendo
> >
> >
> > In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
wrote:
> > >There are a few very cheap single color thermal wax CD printers,
just
> > >over $100 USD.

Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-30 by Stefan Trethan

On Fri, 30 Apr 2004 06:08:55 -0000, ballendo <ballendo@...> wrote:

> I saw one recently, that was a xerox? or HP 4040--I think
>
> It used big "bricks" of wax...
>
> Ballendo

yes they are xerox. or tektronix.
We have one known case of using them.
It was advised to tape the edges of very thin board, then feed it
through a tek phaser i think without any modifications.

I do not clearly remember what it was about, but i had mail communitation
with someone having made a (far too short) page about it.
I advised him to post the information here, and give a more detailed
description
but seems nothing came from it.


If you are interested i will dig out the page and the adress of this guy,
i think he is member here so he will maybe read and answer himself..

ST

Re: [Homebrew_PCBs] Direct Printing Etch Resist (was Re: Standard inkjet inks for etch resist?)

2004-04-30 by Stefan Trethan

Here the url:

<http://www.wwc.edu/academics/departments/engineering/students/classes/engr357/index.htm>

Mail adress can be found on the page.

I suggest if he is not yet member we invite him to become one.
(He has contacted me on using a fuser for TT topic, so he must have
read in the group, not sure if our archives are public).


I am aware that the method is not perfect at all, (why do you think he is
looking
for a TT fuser ;-) ?), but i think it is important to know more
about the process because we get posts every few months and know nothing.
It could answer the question once and for all.

ST