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Subject: Re: [Homebrew_PCBs] Re: Toner transfer problems

From: Kerry Wentworth <kwentworth@...>
Date: 2010-04-21

Cool! Glad we could help. The bleeding may be caused by your iron
being too hot. Less heat is required to get through magazine paper than
it takes to get through photo paper. Try turning your iron down a notch
or two. Experimenting is cheap when the paper is free.

Kerry


andrewmv@... wrote:
> I made a run with the magazine paper, and got dramatically better results.
>
> The Dell laser printer doesn't have a straight though paper path, but I had no difficulty feeding magazine paper directly into the loop-around feed though the manual paper tray - even loading up multiple sheets to do successive copies worked fine.
>
> The paper bubbled in places from the heat of the fuser, and I could smell chemicals burning off the page, but everything came though without jamming or wrinkling.
>
> I scrubbed the toner off one of my earlier boards with acetone, gave it a good scrubbing with ordinary dish-soap and water, dried it, preheated it with the iron, then laid on the pattern.
>
> I put solid pressure on it for 5-6 minutes, dropped it in a bowl of hot water, let it soak for about 20 minutes, and peeled off the paper.
>
> Nothing got left behind on the paper at all, and the results were almost usable on the first attempt. Some of the traces have small breaks in them, and there's some bleeding where I believe I applied too much pressure. I could probably use this board with some resist ink and cutting.
>
> There's some tweaking left to do, and I hope to get better results yet when I get some new boards I haven't over-scoured, but this is definitely a good start.
>
> Thanks for all the advise!
>
> -Andrew
>