barkster,
I found that nylon cuts very nicely if you cut it very fast. I would try pushing it thru the table saw or band saw as fast as you safely can. Should work with either. For machining, again, go fast. Large chip loads will remove the heat with the chip and spare the part any (at least most) melting.
HTH
Matt
San Diego, Ca
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)