Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> I just wondered which files i would have to generate for cnc 
drilling?
> i mean for milling g-code seems to be standard (where i don't know 
if you 
> have to generate normal positive g-code
> or dome "negative" isolation tracks).
> but what's the standard for drilling, some standard seems to be 
excellon, 
> would you agree?
> is there software which accepts excellon files?
> 
> st

In QCad, there is a drill file.

I have only started to isolate the coordinates but hope to figure it 
out soon enough.

Dave