Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

When milling a circuit board on a CNC, I can see two possible
approaches...

1) Using a 'V' shaped bit to outline the traces. This leaves a lot
of the copper on the board.

2) Using a flat bottom milling cutter and cut away all of the unused
copper.

As I have never done this before, is one method preferrred over the
other, or perhaps even another way of doing it?


Chris

Also, what happended to all the discussion on building a CNC machine
for this purpose? There was a bunch of talk, then it all seemed to
dissappear - did it get moved to a different group?