Homebrew PCBs

> > Someone wrote:
> >
> > Okay.   Is anybody using a laser engraver
> > to run off PCBs?

> Chris H wrote:
>
> I've tried it with a 25W CO2 laser (a piece of
> equipment that costs more than my car, and
> holds it's value better) and it doesn't even
> touch the copper.  Flip the board over, and
> it will cut right through the fiber though.

Copper side just reflecting that wavelength huh.

Maybe needs an orange laser with a wavelength
that will be absorbed.

Alternativly you could make the copper unshinny.
Maybe a thick layer black toner on the copper.
Possibly use toner transfer paper to put on a
negative PCB image and then the laser will
burn off the copper underneath the black.

andrewm (sitting back and waiting for replies :)