Homebrew PCBs

I'm in the proccess of setting up a CNC drill, the thing I'm 
concerned about is getting the etched board on the drill tblw 
acuratly. Seems it would be easier to align the TT to the holes.

Agreed about using the etched board for aligning the drill. That's 
what I do when it's by hand, I'm just tired of doing it by hand :-)

-Denny

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> On Thu, 08 Jan 2004 23:00:54 -0000, dkesterline <desterline@t...> 
wrote:
> 
> > Which do you guys do first, etch or drill?
> >
> > I was thinking that drilling first would help me line up the 
toner 
> > transfer, but I'm not sure about etching a drilled board.
> >
> > Do you get excesive undercutting at the edge of the drilled hole?
> >
> > -Denny
> >
> >
> 
> Never drilled before etching.
> 
> i use the etched holes as a drilling guide (to find the center).
> 
> but i rarely make 2-sided pcbs (no tt yet at all).
> 
> i don't tink the undercut is very much.
> 
> ST