On Sun, 13 Jun 2004 18:19:57 -0400 (EDT), <
dg140@...>
wrote:
> Thanks, Jan. I must be doing something wrong. Then gain, the bit is not
> for plexiglass or plastics, and ths speed might be too high. The
> particular board which needs drilling is actually for the mechanical part
> of the project. It has Thousands of holes, several hundred per square
> inch. I've never been to a PC=drilling operation. How fast do they
> drill out the boards? I'm looking at buying some kind of CNC machine
> sistem for light work: something like the stuff from Taig Tools or Prazi.
>
> Charles
other materials than pcb will of course clog up the drill.
pcbs don't because the material is relatively heat-resistant.
plexi is a pain to drill, some kinds seem better than others.
use liquid cooling/lubrication.
cnc feedrates are adjustable, ask the material manufacturer on how to drill
it best.
I try to avoid acrylic glass / plexi whenever possible, going for PP or
ABS instead.
ST