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

Interesting concept.....

On Wed, Sep 7, 2011 at 10:40 PM, Bob Butcher <bbutcher85@...> wrote:

> ∗∗
>
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> That is an interesting thought. I happen to have an old Hermes engraving
> pantograph with a diamond tip. I could print the PCB out 2:1 and trace the
> spaces between lines to scratch the copper through to the substrate, which
> would isolate all the copper that I want to keep. As an alternative I could
> spray paint the copper and scratch off the paint where I want to remove the
> copper, followed by etching the copper in the scratches. I have used this
> technique before, but used an exacto knife or carbide scribe to hand scratch
> the paint off instead of a pantograph. I will have to try it and see what
> happens. It should work for fairly small boards in any case.
>
> Bob
>
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--
Paul Mateer, AA9GG
Elan Engineering Corp.
www.elanengr.com
NAQCC 3123, SKCC 4628, FPQRP 2003


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