Homebrew PCBs

--- Henry Liu <henryjliu@...> wrote:

> I want to test how fine a resolution my lines can be. 
> Would be nice to get a good assortment of 1-12mil widths and 
> clearances.

Do you have much experience with the Haas machine?  I use a 
QuickCircuit at work, and anything smaller than the 10mil bits
is virtually impossible.  I can't find a combination of bit 
and feed speed that won't break the bits.  12 mil gaps is about
as fine as I can do reliably, saving the 8 mil to carve out gaps
between IC pads.  Widths of course aren't much of a problem as
it's a subtractive process.  EAGLE generates the gerber and
drill files for the quickcircuit software just fine, just getting
the flippin' thing to carve it out is a challenge.  Time consuming
at best.  A complex board takes hours and hours...

Mark B.
Albuquerque, NM