Homebrew PCBs

Hi
any suggestions for an Acid that will eat paper and not the Copper
Thomas :)

[Non-text portions of this message have been removed]

--- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
> Hi
> any suggestions for an Acid that will eat paper and not the Copper
> Thomas :)
> 

sodium hydroxide, lye, will break down the lignen (iirc) in paper.  Of
course that's the opposite of an acid so it doesn't meet the strict
definition of your request.  I suspect you are using the term acid a
bit loosely.  Lye is used for paper production and is the also the
main ingredient in drano.  I believe it doesn't attack copper.

But but but, please be very careful with lye.  Not only does it work
on paper, it does an even nastier job on flesh.  This stuff is far
nastier than any of the etchants we use.

Phil

I am having a hard time finding suitable paper here in Jakarta that works like the successes that I've read about for the TT method, But I did find a paper that gave reasonable results ... if I could eat or break down the paper I think that it would be ok.
The paper from Staples seem's to be the go for TT, 
asking the shop staff for clay coated paper you get the screen saver look.... with a :o
I'll give the Sodium Hydroxide a run.....
Thomas

  ----- Original Message ----- 
  From: Phil 
  To: Homebrew_PCBs@yahoogroups.com 
  Sent: Monday, October 11, 2004 2:32 PM
  Subject: [Homebrew_PCBs] Re: Acids that eat Paper



  --- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
  > Hi
  > any suggestions for an Acid that will eat paper and not the Copper
  > Thomas :)
  > 

  sodium hydroxide, lye, will break down the lignen (iirc) in paper.  Of
  course that's the opposite of an acid so it doesn't meet the strict
  definition of your request.  I suspect you are using the term acid a
  bit loosely.  Lye is used for paper production and is the also the
  main ingredient in drano.  I believe it doesn't attack copper.

  But but but, please be very careful with lye.  Not only does it work
  on paper, it does an even nastier job on flesh.  This stuff is far
  nastier than any of the etchants we use.

  Phil





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[Non-text portions of this message have been removed]

--- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
> I am having a hard time finding suitable paper here in Jakarta that
works like the successes that I've read about for the TT method, But I
did find a paper that gave reasonable results ... if I could eat or
break down the paper I think that it would be ok.

Look for paper that is coated.  They do it so the ink doesn't run.  I
recall seeing somewhere on the web a test where you put droplettes of
ink on the paper.  If it expands at all, it isn't coated.  This is
why, I believe, inkjet papers are appropriate.

> The paper from Staples seem's to be the go for TT, 
> asking the shop staff for clay coated paper you get the screen saver
look.... with a :o

I thought that was patented by radio shack...

> I'll give the Sodium Hydroxide a run.....

again, please be very very careful with that stuff.

Not and acid, but ... hydrogen peroxide breaks down paper rather nicely.
I expect 35% peroxide that is used in food processing and agriculture
would do nicely.  Caution, 35% concentration is nasty stuff to your
clothes and skin as well!

Regards/Roger, in Bangkok

-----Original Message-----


Hi
any suggestions for an Acid that will eat paper and not the Copper
Thomas :)


---
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thanks Roger
my hairdresser wife will understand .... wont she ??
12% will be slower than 35% ...
Thomas

----- Original Message ----- 

From: "Roger, in Bangkok" <mercies@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Tuesday, October 12, 2004 10:30 AM
Subject: RE: [Homebrew_PCBs] Acids that eat Paper


> 
> Not and acid, but ... hydrogen peroxide breaks down paper rather nicely.
> I expect 35% peroxide that is used in food processing and agriculture
> would do nicely.  Caution, 35% concentration is nasty stuff to your
> clothes and skin as well!
> 
> Regards/Roger, in Bangkok
> 
> 
> -----Original Message-----
> 
> 
> Hi
> any suggestions for an Acid that will eat paper and not the Copper
> Thomas :)
> 
> 
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
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> 
> 
> 
> 
> 
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
>

Thomas wrote:

> Hi
> any suggestions for an Acid that will eat paper and not the Copper
> Thomas :)
> 
I've spilled 98% sulfuric on paper, and it turns charcoal black in 
seconds. I assume your after something a little easier to handle. Normal 
20% sulfuric (car battery strength) eats holes in cotton after about 24 
hours. Might do the same to paper since they are both derived from 
cellulose.
Have you tried strong sodium hydroxide ? I think this can soften paper.

> I am having a hard time finding suitable paper here in Jakarta that works
like the successes that I've read about for the TT method, But I did find a
paper that gave reasonable results ... if I could eat or break down the
paper I think that it would be ok.
> The paper from Staples seem's to be the go for TT,
> asking the shop staff for clay coated paper you get the screen saver
look.... with a :o
> I'll give the Sodium Hydroxide a run.....

    Thomas, in Brazil (which is not third world, but maybe third-and-a-half
or fourth) any magazine who has colour printing has couche paper (a bright,
white-as-snow paper) which is more than fine for Toner Transfering. The
"secret" keeps being able to exercise constant pressure and heat to the
paper. After I built my laminator, all transfering problems suddenly
disappeared! Watch this new board, beyond the two I've done before:

    www.tabajara-labs.com.br/pinboard/p1.jpg
    www.tabajara-labs.com.br/pinboard/p2.jpg
    www.tabajara-labs.com.br/tt/p3.jpg

    And in a soon (?) future, Thermal Transfer in photos and steps explained
throughly in www.tabajara-labs.com.br/tt (first in portuguese, later I'll
translate to english, you all feel free to help me translating to another
languages like spanish, french and german if you find the page useful)


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On Wednesday 13 October 2004 01:21 pm, upand_at_them wrote:
> > > The paper from Staples seem's to be the go for TT,
> > > asking the shop staff for clay coated paper you get the screen
> > > saver look.... with a :o
> >
> > I thought that was patented by radio shack...
>
> Which makes you wonder about their slogan: "You've got questions,
> we've got answers".  Ever ask them a question?  I don't even think
> they know a resistor is.  I think all they know is, that when I buy
> some electronic component from them they have to ask me if I need
> solder to go with it.
>
> Mike

Is that like,  "You want fries with that?"   :-D

> --- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> > --- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
> > > I am having a hard time finding suitable paper here in Jakarta
>
> that
>
> > works like the successes that I've read about for the TT method,
>
> But I
>
> > did find a paper that gave reasonable results ... if I could eat or
> > break down the paper I think that it would be ok.
> >
> > Look for paper that is coated.  They do it so the ink doesn't run.
>
> I
>
> > recall seeing somewhere on the web a test where you put droplettes
>
> of
>
> > ink on the paper.  If it expands at all, it isn't coated.  This is
> > why, I believe, inkjet papers are appropriate.
> >
> > > The paper from Staples seem's to be the go for TT,
> > > asking the shop staff for clay coated paper you get the screen
>
> saver
>
> > look.... with a :o
> >
> > I thought that was patented by radio shack...
> >
> > > I'll give the Sodium Hydroxide a run.....
> >
> > again, please be very very careful with that stuff.
>
>
> Be sure to visit the group home and check for new Bookmarks and files:
> http://groups.yahoo.com/group/Homebrew_PCBs
> Yahoo! Groups Links
>
>
>

> > The paper from Staples seem's to be the go for TT,
> > asking the shop staff for clay coated paper you get the screen
> > saver look.... with a :o

> I thought that was patented by radio shack...

Which makes you wonder about their slogan: "You've got questions, 
we've got answers".  Ever ask them a question?  I don't even think 
they know a resistor is.  I think all they know is, that when I buy 
some electronic component from them they have to ask me if I need 
solder to go with it.

Mike


--- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> 
> --- In Homebrew_PCBs@yahoogroups.com, "Thomas" <teecee@c...> wrote:
> > I am having a hard time finding suitable paper here in Jakarta 
that
> works like the successes that I've read about for the TT method, 
But I
> did find a paper that gave reasonable results ... if I could eat or
> break down the paper I think that it would be ok.
> 
> Look for paper that is coated.  They do it so the ink doesn't run.  
I
> recall seeing somewhere on the web a test where you put droplettes 
of
> ink on the paper.  If it expands at all, it isn't coated.  This is
> why, I believe, inkjet papers are appropriate.
> 
> > The paper from Staples seem's to be the go for TT, 
> > asking the shop staff for clay coated paper you get the screen 
saver

> look.... with a :o
> 
> I thought that was patented by radio shack...
> 
> > I'll give the Sodium Hydroxide a run.....
> 
> again, please be very very careful with that stuff.

--- In Homebrew_PCBs@yahoogroups.com, "Roy J. Tellason"
<rtellason@b...> wrote:
> On Wednesday 13 October 2004 01:21 pm, upand_at_them wrote:
> > > > The paper from Staples seem's to be the go for TT,
> > > > asking the shop staff for clay coated paper you get the screen
> > > > saver look.... with a :o
> > >
> > > I thought that was patented by radio shack...
> >
> > Which makes you wonder about their slogan: "You've got questions,
> > we've got answers".  Ever ask them a question?  I don't even think
> > they know a resistor is.  I think all they know is, that when I buy
> > some electronic component from them they have to ask me if I need
> > solder to go with it.
> >
> > Mike
> 
> Is that like,  "You want fries with that?"   :-D
> 

More like, want a cell phone with that?  True story - went into my
local shack to buy a DC power connector - I think it was 2 bucks.  The
guy behind the counter would not give up on trying to sign me up for
cell phone service.  He woldn't ring it up (no pun), just kept talking
about how great the service was and ignored my "no thanks".  Finally,
I tossed the money on the counter and walked out.  The guy says as I'm
leaving "you don't know what you're missing".  I bit my tongue but
"You" would have been appropriate.

I think they should change their slogan to "You've got questions,
we've got cell phones".

--- In Homebrew_PCBs@yahoogroups.com, "upand_at_them"
<upand_at_them@y...> wrote:
> 
> > > The paper from Staples seem's to be the go for TT,
> > > asking the shop staff for clay coated paper you get the screen
> > > saver look.... with a :o
> 
> > I thought that was patented by radio shack...
> 
> Which makes you wonder about their slogan: "You've got questions, 
> we've got answers".

I thought it was "You've got questions, we've got blank looks."

I used to go into Radio Shack and ask them crazy questions like "Where
are the cold neutron injector needles?" or "Do you guys carry
left-handed femtore cores?" or whatever were the latest buzz-words
from the last episode of Star Trek.

It lost all it's fun when I realized that it was like shooting fish in
a barrel.

Interesting observations: 

Male "associates" would look blank for a beat, then nod knowingly and
directly me authoritatively to the small parts section and say "right
here" and hustle off as if they had been in the middle of something. A
couple of them just said No without finding out what I was talking
about. Only one admitted he didn't know what I was talking about.

Female "associates" would say right off the bat that they didn't know
what that was, and pull the catalog out and offer to help me look it
up. All of them. Yep, every last female I pulled this on at Radio
Shack was not afraid to say "I don't know".

BTW, can you guys try to trim if you are only going to post one line
in reply? Not everyone here is on high-speed, and those outside the
USA may have to pay for every second of connect time. We in the US
often forget that not everyone gets local dialing without extra charge.

Steve Greenfield

> More like, want a cell phone with that? True story - 

They do that to me all the time.  Try not talking to them at all and 
see what happens.

Here's one for ya...I think I was 14 years old at the time and they 
tried to sell me a VCR!

Mike


--- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> 
> --- In Homebrew_PCBs@yahoogroups.com, "Roy J. Tellason"
> <rtellason@b...> wrote:
> > On Wednesday 13 October 2004 01:21 pm, upand_at_them wrote:
> > > > > The paper from Staples seem's to be the go for TT,
> > > > > asking the shop staff for clay coated paper you get the 
screen
> > > > > saver look.... with a :o
> > > >
> > > > I thought that was patented by radio shack...
> > >
> > > Which makes you wonder about their slogan: "You've got 
questions,
> > > we've got answers".  Ever ask them a question?  I don't even 
think
> > > they know a resistor is.  I think all they know is, that when I 
buy
> > > some electronic component from them they have to ask me if I 
need
> > > solder to go with it.
> > >
> > > Mike
> > 
> > Is that like,  "You want fries with that?"   :-D
> > 
> 
> More like, want a cell phone with that?  True story - went into my
> local shack to buy a DC power connector - I think it was 2 bucks.  
The
> guy behind the counter would not give up on trying to sign me up for
> cell phone service.  He woldn't ring it up (no pun), just kept 
talking
> about how great the service was and ignored my "no thanks".  
Finally,
> I tossed the money on the counter and walked out.  The guy says as 
I'm

> leaving "you don't know what you're missing".  I bit my tongue but
> "You" would have been appropriate.
> 
> I think they should change their slogan to "You've got questions,
> we've got cell phones".

<snip>
I think they should change their slogan to "You've got questions,
we've got cell phones".

<unsnip>
- - - and their name from Radio Shack to 'The Phone Booth'

Norm

--- In Homebrew_PCBs@yahoogroups.com, "Alexandre Souza" <alexandre-
listas@e...> wrote:

>     And in a soon (?) future, Thermal Transfer in photos and steps 
explained
> throughly in www.tabajara-labs.com.br/tt (first in portuguese, 
later I'll
> translate to english, you all feel free to help me translating to 
another
> languages like spanish, french and german if you find the page 
useful)


http://www.tabajara-labs.com.br/tt gets me a 

Not Found
The requested URL /tt was not found on this server.

Can you let us know when you have it posted? Even in portuguese?

> http://www.tabajara-labs.com.br/tt gets me a
> Not Found
> The requested URL /tt was not found on this server.
> Can you let us know when you have it posted? Even in portuguese?

    As I said, as soon as I have time :o) I hope this weekend I can do that,
since I need to do a board today, and I'll take time to take photos of every
step of the process.

    Greetings!



---

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