Homebrew PCBs

On Sun, 24 Jul 2005 14:58:24 +0200, lcdpublishing  
<lcdpublishing@...> wrote:

> Hi Stefan,
> The process of drilling metal under water I have done in the past -
> usually with very hard steels and at very slow spindle speeds.
> FOr PCBs, there could be a big problem though.  When drilling, the
> material may create a chip that is a "long string" which could fling
> the water all about your shop.  I have not drilled enough PCB
> material to know how the chips develope and break so I am unsure of
> this.


Well, most seems to be fine dust when drilling in air.
But sometimes fibers seem to stick together and accumulate on the drill.  
It isn't very strong fibers and i don't think it could stay at the drill  
in water (drag), it comes off very easily when drilling in air.

Easy enough to try out with a small water container and the drill press.

thanks

ST