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From: jbm@eos.UUCP (Jeffrey Mulligan)
Newsgroups: sci.electronics
Subject: Re: Machining Plexiglas (was : Project Enclosures)
Message-ID: <5982@eos.UUCP>
Date: 16 Jan 90 19:42:53 GMT
References: <126@gazette.bcm.tmc.edu> <25869@cup.portal.com> <1170@rsiatl.UUCP> <114@mach1.atc.olivetti.com>
Organization: NASA Ames Research Center, California
Lines: 22

gnome@mach1.atc.olivetti.com (Gary) writes:

>If you have a problem with twist drills causing
>snags and chips around the hole, try using an old
>drill and use a file to dull the cutting edge.

Use a stone instead of a file.

The plexi drill I have seen had a small bevel ground on the cutting edge
at approx 45 degrees.  This perhaps had a width of 1/32" on a 1/2 inch
drill.

Plexi can be cut cleanly and easily without a saw by first scoring
along a line, then placing the scored sheet on top of a broom handle
or dowel, and striking a sharp blow.  This works best for smaller cuts.


-- 

	Jeff Mulligan (jbm@aurora.arc.nasa.gov)
	NASA/Ames Research Ctr., Mail Stop 239-3, Moffet Field CA, 94035
	(415) 694-3745