Quote:
Originally Posted by GTmike400
Quite the contrary in my experience. I usually machine plastics (delrin, HPDE, acyrlic, ABS, polyurethane) at high RPM (3000+) on full rapid. Any slower and I get crappy surface finish due to melting.
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Yikes...that's a weird one Mike!
I can only guess that the melting is occurring because the cutting tool is getting hot? Try a very slow speed if you haven't done so already, you may find a cooler tool cuts better. I've found the same thing with cutting plastic sheet with a hand saw. Slow is good...get too fast and the blade sticks.