Homebrew PCBs

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