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Discussion Starter · #1 ·
I want to try the lathe option on my Probotix Nebula for the first time.

I want to machine 0.50in dia axles (for wheeled toys) from strips of 0.75 x 0.75in thick HDPE (thermoplastic) sheet.
I am assuming I should not use the 3/16 end mills (I am currently using for flat machining) in the air spindle.

1. What cutters are recommended to achieve pretty small corner radii, e.g. 0.02 - 0.05in?
2. What cutters for best surface quality on the axle?
3. What cutters for drilling a small hole (0.20in dia) at each end of the axle. I assume here I can stop/fix the rotation of the part to zero and drill the two holes. I hope I can use the same cutter as for 1) and 2) so as to do all operations with one and the same cutter.

I appreciate any feedback!
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