Homebrew PCBs

Been working on this project for a long time, finally got some results...

  DIY CNC 409 0.0145" holes in 12 minutes
  www.youtube.com/watch?v=SR1y6Eq19EU

The CNC machine uses three brushless DC motors instead of steppers, I
had to make my own controller boards, write the firmware, build the
table... many steps.

controller page: www.delorie.com/electronics/bldc/
photos: www.delorie.com/photos/cnc/  (including close-ups of the drilled board)

I have an excellon-to-gcode script for drills if anyone's interested,
although there's some new features I still want to try, and I want to
see how fast I can get the drilling cycle to go without breaking any
bits :-)