Homebrew PCBs

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