The special plastic bits have a different point angle (typically 90
degrees vs. 118 degrees for a standard bit) making them work better with
the relatively brittle Plex.. Go slowly with it.
If you can get it, I also recommend using "Lucite L", which is a type of
plastic which is similar to Plexiglas but machines much more smoothly
without the melting seen in standard Plexiglas. I've turned Lucite L on
a lathe and it cuts like butter, with nice clean shavings instead of
sticky melted blobs. Drills nicely too.
Good luck.
-Tom
Computer Collector Newsletter wrote:
It's only "slightly" off-topic because
what I'm building is a new case for my
Apple 1 "Replica 1" board.
I've heard some horror stories about whole (expensive!) sheets of plexiglass
simply breaking in half when incorrectly drilled through. The guy at the
plastic supply company tried selling me a special drill bit, but I'm hesitant
about that. Does anyone has hands-on experience and tips (vs. just
speculation) about working with this stuff? This computer will be on display
as some public events, so the final appearance is very important.
--
Thomas Hudson
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