Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I don't do anything that complex. I set the temperature on my external control to 260 ∗F, The $25 GBC laminator. Takes about as long to heat up as it takes to print out the transfer. I use Hammermill Color Laser Glosss, 32# (16311-0). I lightly sand the board with 220 grit paper. I do a double wipe with alcohol. I do not preheat the board. I align the pattern on the board and hold it place with fingers. One pass will tack the toner, reverse direction of board on a second pass. This is all I need to do for small boards ~2 sq. in. or so. Larger boards I run 4 times changing the leading edge on each pass. I get nearly no spreading. The paper does not wrinkle. As usual the pattern does shrink just a bit.

Immediately out of the laminator I run water and liquid hand soap on the paper. Lightly scratch the paper with fingernails. The paper becomes translucent almost immediately. I can then rub/roll off a top layer of paper, then roll off the layer against the copper. Takes less than a minute to get the paper off. I can then very lightly scrub the board with a fine nylon abrasive pad.

I almost never loose any traces.

RD

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