Look back through previous posts to this same topic for a post by Robin Whittle. He gives a link to ebay for the stuff. Very cheap, very long lead time...2-3 weeks.
--- In Homebrew_PCBs@yahoogroups.com, "James Newton" <jamesmichaelnewton@...> wrote:
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> Rick, can you share the source, part number and mfgr, or any other details about the "special waxed paper"?
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> --- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" <rgsparber@> wrote:
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> > The special waxed paper came in WAY ahead of the promise date - got it today. Wonderful material! I drafted a 1" long scale with 10 major and 30 minor divisions on it using DesignCAD V14. It was then printed, mirror image, onto the wax paper. I printed 4 coupons at a time. Two of these coupons were taped to 2 small pieces of copper plate.
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> > I ran my copper plates with the waxed paper on top through my laminator 10 times. Then I put the samples in the freezer for 15, not 30 minutes. The paper fell away from the toner. Then I dropped the two samples in rather used up ferric chloride that I put out in the Arizona sun. Every 15 minutes I would bump the container. After an hour I pulled out the samples. The toner was solid and I had etched down about 0.001" according to my caliper. The fine lines of the scale and numbers all looked perfect.
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> > My last small challenge is figuring out how to color the background and leave the raised copper areas shiny. I tried coating the entire surface and then abrading the raised area. Didn't do a very good job but the technique shows promise.
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