True the G10 (called FR$ for some reason on a clad board) isn't
smooth. But then a laser isn't perfect either. Yeah, you'll burn
the substrate a bit (I doubt more the the 'milling' style) But I
doubt you would go through it. A little clean up might be needed.
Now to find a customer with a Yag......
--- In
Homebrew_PCBs@yahoogroups.com, "Mike Putnam" <circuit@g...>
wrote:
>
> > Feedrates!!!!
> > I'm a CNC CO2 laser tech now. We can etch material.
> > Its all power to speed ratios.
> >
> >
> I have never tried using this method, although I have quite a bit of
> experience with lasers. Just off the top of my head, I see a
problem. The
> copper is not "even" on top of the clad. If you look at it with a
magnifier,
> you will see low spots and high spots. Even with varying feedrates
you will
> get burn marks in the substrate wherever there is a low spot in the
copper.
> I could be wrong about this as it is theory and not actual
practice, but if
> I am, could you please post a URL showing the project? I would also
like to
> see more on this.
>
> -Mike