Finish on soft plastics

[Dean jeffery]

Think I found the issue same place I get the HDPE from same cutter same speeds and feeds but better finish, only the very bottoms got recut chips.

Easy to see from the pic not so easy on the eye, so my best guess is different batch of material or a crap batch before.

[A_Camera]

Why are you using 2mm cutter for this? Generally i think 4 or 6mm 2 flute would be better. You could also increase the feed rate with a larger cutter. It is also a good idea to make a final fine cut at full depth.