--- In
Homebrew_PCBs@yahoogroups.com, Mark Brueggemann <qrq_cw@...>
wrote:
> I use a Quickcircuit at work, and I've never had any luck running
> stub endmills any smaller than 8 mils into 1oz board, no matter what
> the feed rate.
> Mark B.
> Albuquerque, NM
>
Could you expand on that? What kind of troubles did you have?
I could probably do evetything with a 30 degree v-bit that I need but
if the boards aren't perfect (few are) then the really fine pitch stuff
is hit and miss. A tiny bit of a warp in the board can cause over or
undercutting with a V-bit. The endmill is appealing in that trace width
doesn't vary with depth.