Wondered what I can do better working with hdpe. First attempt at cutting plastics ended in molten goo stuck to the bit. Here is my feeds and speeds:
Feed: 400 mm per minute
Depth per pass: 1mm
Bit: 1/8th’ upcut flat end mill
Spindle Rpm: 12,000 (2 on makita router)
I figured that was plenty slow RPM wise. Do I just need to feed alot faster? It also cut the same small area multiple times trying to cut out a 1.5’ cylinder. Wonder if that was just heat build up.