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Subject: Re: [Homebrew_PCBs] Re: Laser printers fo tt

From: Mycroft2152 <mycroft2152@...>
Date: 2006-02-12

sir Patrick,

A wise and noble explanation!

As you have said, there is no holy grail in the toner
transfer process.

Search for what will give you the results you require.

The repeated ballads of the unsuccessful quests take a
toll on one's spirit..

Too many knights revell in their failed exploits. over
and over again....

The key to the successful quest is an unfailing
prepartion and process


TANSTAAFL!

Sir Mycroft







--- Patrick Cambre <braincambre500@...> wrote:

> Hello Sir Ted,
>
> I do believe that you will have to find your 'own
> way'
> in getting good results. And I further believe that
> your new printer will work out fine...it's just that
> you will finally come out with your own 'style' in
> getting that toner to come out right on the PCB.
>
> Here is my story and that way I came up with my own
> style...
>
> I read a lot of post here, and finally decided to
> buy
> a laser jet. I also bought a pack of laser
> transparencies, being that others had tried that
> method. But I did not buy inkjet transparencies, as
> I
> was told. I just didn't want to mess up my new
> printer
> with putting things in it, that could possibly stop
> it
> from working.
>
> So...I worked on that all night long...and the best
> I
> got it...was partial toner on the board and partial
> toner still clinging to the bottom of the
> transparency. Well, after 6 hours or so, patience
> was
> starting to leave...and I was getting tired.
>
> Right before I decided to go to bed (being around
> 4:30AM!), I realized I still had some HP Inkjet
> Photo
> Paper left in my drawer. I took a gamble, since it
> was
> not recommended for laser printers.
>
> And would you believe, on the very first try...it
> came
> out unbelievably well! If I did step out on a little
> faith, it would never have happened.
>
> My advice to you, is to go through the whole gambit,
> and use all the advice here on the board, together
> with your own 'good medicine'...and never let your
> patience leave you. It will happen, it's just a
> matter
> of time.
>
> I strongly believe that your new printer is just
> 'waiting' for you to give it the right medicine it
> needs! That's all...
>
> Here is the medicine I came up that my printer
> needs...
>
> I found out on my printer controls that a real dark
> setting can be achieved...so I put it on that. Then
> when I got through making my PCB layout in my Paint
> Program, I made eight copies of it, in the program.
> That way, my sheet of HP paper will have eight
> designs
> on it...being that I could experiment eight times
> with
> my iron...on a single sheet of HP paper. I used
> sizzors to cut each one out.
>
> When the HP paper finally came out of the printer, I
> noticed that the first few designs were not fully
> printed out. I am trying to say that, the toner was
> not fully saturating middle areas of my routing
> design. So I actually used the 4 and 5 and 6 and 7
> and
> eight copy of the design. Number 1 and 2 and 3
> seemed
> not to have enough toner in the middle areas of the
> design. That is just the way my printer wants to
> work.
> I had to see that for myself. So using the 4 copy, I
> proceeded.
>
> I put a few piece of paper under the PCB and one on
> top. I used my iron for around 30 seconds. I then
> went
> to the kitchen with the the PCB. Waiting in the
> kitchin, was a pot of boiling water on the stove. I
> took my needle-nose pliers and grap a portion of the
> PCB, and dipped the rest of the PCB in the boiling
> water. I took the first layer off by hand, and also
> the second layer. But the third and final layer was
> scrubbed off with those green scroubing pads. I
> found
> out that keeping the PCB in boiling hot water, will
> keep that third layer loose, and it will come off
> easy
> in boiling water. Very easy...
>
> I tried many a times to use all different chemical
> took take off that third layer, but none worked.
> That
> took some time...
>
> I finally realised and decided to use boiling water.
> And amazingly that worked!
>
> So, now I have a PCB that I can truly say, without
> the
> help of the great people here, and putting my own
> head
> into the game...it would never have happened.
>
> I have no doubt...that if you stay with it, and do
> everything that you can think off...you will 'skin'
> the cat. It's just a matter of time, Sir Tim.
>
> ....all the best and do let me know how
> things
> are coming along. Dad always said two heads are
> better
> then one...and being a lot of other heads know
> what's
> going on with you...you simply can't lose!
>
> ...your friend, Patrick
>
>
> --- kilocycles <kilocycles@...> wrote:
>
> > Now you've just made me mad, Patrick! I bought a
> > new laser printer
> > specifically to do PCBs, and I chose the Brother
> > HL-2040 over the same
> > HP at the same price because of the cost of toner
> > cartridges, 2400
> > dpi-interpolated resolution, and I'm not happy
> about
> > it! You're
> > getting good-quality PCB transfers, and I'm not!
> >
> > I've got one more method to try; I'm getting a
> > couple of inkjet
> > transparencies to try with it. Also, something
> > someone said regarding
> > using a cloth or paper towel over between the iron
> > and the
> > transparency is something I'm going to try with
> the
> > Press and Peel
> > Blue sheets that I still have. I'm thinking that
> > the pinholes (a LOT
> > of them in foil-filled areas) may partially be due
> > to uneven contact
> > between the PCB and the bottom ot the iron due to
> > slight ridges around
> > the edges of the board from cutting it with my
> long
> > tin shears. I get
> > some areas of very good transfer, and some with
> > serious problems.
> >
> > I may need to revisit my board prep procedures as
> > well, following the
> > ideas that have been posted here. Basically, I've
> > been using a
> > "greenie" fibre cleaner, and an acetone wipe, and
> > that's it.
> >
> > I'm glad your boards are working out well,
> Patrick.
> >
> > Cheers,
> > Ted
> > --- In Homebrew_PCBs@yahoogroups.com, Patrick
> Cambre
> > <braincambre500@...> wrote:
> > >
> > > Hello Pete,
> > >
> > > I just bought (Friday) an HP 1020 Laser Printer
> > from
> > > Office Depot.
> > >
> > > The results are amazing. I am using the toner
> > transfer
> > > method with HP Inkjet Photo Paper
> > > (C1846A/Glossy/8.5mil/175g/m2 47lb/25 sheets).
> > >
> > > I run it through the laser printer one time,
> then
> > I
> > > use my iron for one minute on the highest
> setting.
> > In
> > > between the PCB and iron is a single sheet of
> > paper.
> > > Underneatht the PCB is about 5 sheets of paper,
> to
> > > keep my table to getting too hot!
> > >
>
=== message truncated ===


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