Homebrew PCBs

I like the idea of PCB jigsaw puzzles :-)
hansw

Russell wrote:

>  HW wrote:
> >
> > John,
> > Thanks for all the links. I had one of them from before. There is so
>
> > much stuff on scanners and building lasers. What I'm looking for a a
>
> > place that will sell be one for cutting.
> > Somewhere I found one link to an outfit that sold a laser engraving
> work
> > station but the price was out of my class...
>
> I'd think a laser powerful enough to melt copper (might need black
> anti-reflection coating), would cause charring of the substrate.
> If it was powerful enough for a clean cut thru the copper, then
> once it does, it will zip thru the fibre-glass before you know
> it, making for a rather dandy jigsaw puzzle making kit.
> I could be wrong tho.
>
> Maybe you could use the laser to burn off the etch resist coating
> around the tracks and pads, then just etch in acid.


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