Feeds and speeds software?

[Boyan Silyavski]

Difficult to say without knowing the machine. The sturdier the machine the deeper you can go and faster, the idea is also to make it happen faster or it will melt. I hope you know this is not the cutter for the job?
Anyway, i would not go deep - 1mm or less and with a sharp cutter and machine with supported square rails the program says 15000 RPM and 3800mm/m for 2 flute cutter, so double that up for a 4 flute cutter.
On a flimsy machine with v bearings and belts i cut it for sure without any problem using much more slower RPM /6000/ and much slower feed / 40ipm/ but you know the chatter heats a lot things up, so that's why.

So you see, depends on the sharpness of the bit, the ability to clear chips and the rigidity of the machine. The bad thing with that plastic is that until you figure the real speed the bit clogs and usually brakes. Thats why start very shallow and when you are sure that the cut is at its best then go deeper. Some air cooling definitely is a game changer