27 Oct
2015
27 Oct
'15
5:12 a.m.
There are special bits for plastics, and they work quite well. Regular
bits are troublesome on most plastics.
--
Will
On Tue, Oct 27, 2015 at 12:38 AM, Chuck Guzis <cclist at sydex.com> wrote:
On 10/26/2015 08:54 PM, wulfman wrote:
To effectively drill in plastics you need to run the drill press on
the highest speed you can and use a freshly sharpened drill bit.
If this is Perspex/Plexiglas, I've had great results with a good sharp
Forstner bit in my drill press at medium (say 750 RPM) speed and a not-too
aggressive feed.. No melting, just lots of crumbly shavings. I've done this
with sizes down to about 1/4", but no smaller. When you're almost through
the material, turn it over and complete the hole from the back side. Very
clean edges, with no chips at all.
--Chuck