Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: Printing large PCB layout for toner transfer on A4 printer
From: "Kevin Urbom" <urbomb@...>
Date: 2011-06-01
I used some 20 lb glossy paper that I got from a printer.They cut it to
size for me. I made the copy on a Sharp color laser printer (real dark
green). I cleaned the boards and wiped them with a blend of propylene
glycol methyl ether acetate (PM Acetate from Diamond Vogel) and
De-solv-it contractors solvent about 30% Pm acetate and 70% de-solv-it.
Could use CitraSolv alone, but I couldn't get it out here in the sticks.
Citristrip wipe-away works too. While the boards were still damp, I
placed the copy on the board and ran it through the laminator twice,
then into the oven at 375 degrees for 2 minutes and through the
laminator again. soak off the image, and etch in 10% Bacquacil pool
shock, 30% muriatic acid, and 60% water. I uploaded pics to the photos
section under "big boards". This is the second time that I did this
size boards, but the first time I silk screened them.
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