Machining clear plastic and keeping it that way
On Tue, 05 Nov 2013 12:26:16 -0600, Tim Wescott
wrote:
I was going to say "acrylic", but then I realized that maybe I would be
narrowing it down too much.
How hard is it to machine a part out of hard clear plastic and then make
it clear again? Any gotchas? What plastic should one start with? What
question am I failing to ask?
cracking is the biggest issue i had doing this. I "made a sandwich"
with AL above and below, clamped together. Don't know all the names
for sure, I think it was called lexan.
Only did it once, but it came out nice on my second try.
karl
The part will be cylindrically symmetric (i.e., turned on a lathe), about
1.5" diameter, 0.5" tall, and accuracy can be as sloppy as 0.01 in all
directions. But it would need to be "pretty".
Some plastic that is a bit more rugged in impact than acrylic would be
nice (do they make crystal clear Delrin?) but I can't think of anything
like that which would actually work in this case.
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