Homebrew PCBs

The burrs seemed a bit rough, but it's hard to judge with
magnification sometimes.
I found the proxxon tools have better runout, probably in part due to
the precision collets. The power of the small cheap 12V tools is more
than plenty for PCB drills.

Ideal drilling results can only be achieved with backing sheet (and
cover sheet), not that i bother with the size rules i use, but that's
what i'm told anyway.

If you are going to solder via-wire to the traces it seems a good idea
to widen the first couple mm of trace, to get a solid joint.

ST

On 06 Jul 2008 09:36:35 -0400, DJ Delorie <dj@...> wrote:

>  The real problem is that I'm only using a dremel tool, so the runout
>  in the bit is almost as much as the annulus size!
>