Been struggling with the finish on plastics but only soft stuff like nylon and HDPE the left parts are acrylic and are totally fine, the right is nylon and it's shite.

Anybody got any speeds and feeds for me to try I run the acrylic at 24k 1750 feed, nylon I've tried anything from 800-1750 and the results appear very similar.

Cutter is one from cutwel tools 2mm single flute and specially for soft plastics, DOC is 1mm