Clearification RE: drilling techniques for plastic to get specific sized hole?

Sorry,

I want the hole just large enough, so I can slide the rod in and out,
but without much play at all...

The hole is large enough for the rod to be *push* in... VERY hard to put
the rod out afterwards...

This is probably due to heat expansion of the plastic while drilling...

Should I be using a large drill? Freezing or heating the plastic?

The plastic is 1 1/2" x 1 1/2" that I'm trying to drill...


-----Original Message-----
From: Lloyd Leung [mailto:lloyd@...]
Sent: Thursday, January 31, 2002 11:48 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] drilling techniques for plastic to get
specific sized hole?

I have either, UMHW, Polyethylene, or something like cutting boards.

I'd like to know the technique for drilling plastic.

I want a 1/2" hole... however, when I slide it over my 1/2" precision
ground rod, the hole is too small...



--
Lloyd Leung
Lloyd@...


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