Searching around for info on bending and shaping acrylic ("Plexiglas", "Lucite", etc.) in order to make a curved splash guard for a lathe, I ran across this web site which has extensive info on the subject. Everything you might need to know, including proper angles for special ground drill bits and lathe turning tools, speeds and feeds, thermoforming and annealing, and much more.
Seemingly very complete info at:
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