Homebrew PCBs

Feedrates!!!!
I'm a CNC CO2 laser tech now.  We can etch material.
Its all power to speed ratios.


--- In Homebrew_PCBs@yahoogroups.com, Hans Wedemeyer <hans@c...> 
wrote:
> Well I posted a similar question and got the reply ... you will end 
up
> with a PCB jigsaw....
> How are you going to stop the laser burning the FR4 material ?
> If you can do that I'm interested....
> Hans W
> 
> anode505 wrote:
> 
> >
> >
> > Has anyone thought of a Yag laser for PCBs?
> > I see people are actually 'milling' the unwanted copper off the
> > boards.
> >
> >
> > Yags are great for copper (On CO2 lasers, copper is a BIG no-no) 
and
> > the beam can be delivered via fiber optics with a Yag.  Plus you
> > cna 'drill' the holes without a tool change.  Get fancy and you 
can
> > adjust to focus for bigger/smaller kerfs (though not recomemned)
> >
> > Nice chemical free way of doing it (at least chem free before 
PTHs)
> >
> >
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