Hi Jan,
I have the milling process put a starter hole in each pad
during the milling process. Then I use a small drill press. I do
several boards a week. I like knowing when the drill bit is getting
dull. When the milling bit gets dull a burr shows up on the trace.
When a dull drill bit shows up in the middle of a drill sequence, you
have to stop and change the bit. That's if you are there to catch it!
John
--- In Homebrew_PCBs@y..., JanRwl@A... wrote:
> Adam: For a board with more than, oh, 30 or 40 holes, I can
actually do it
> FASTER by typing-in coordinates and then letting the machine do
the "work"!
> Repeatable, too! For larger than the size-#57 bit I normally have
in the
> machine, I just "ream" with a larger bit on a drill-press, as there
are only
> a very few, when/if.
>
> See my home-brew machine in PHOTOS (or is it "Files"??). PET-
controlled!!!!!
>
>
> Jan Rowland