07-26-2015, 10:12 AM
That should be something you could do with a 5C step chuck and a collet block. You'd be getting over 90% contact area on the polymer tire by circular milling a pocket to match the O.D. of the wheels, then get additional security by drilling and tapping the M4x0.7 thread down the middle. Yes, the tapped hole should be a little loose so the step chuck (or emergency collet) doesn't clamp on the screw.
What size cutter, number of flutes, spindle speed and feed rate are you using?
BTW, looks like the Thai guy doesn't have the polymer tires on the wheel blanks. That's important for grip!
What size cutter, number of flutes, spindle speed and feed rate are you using?
BTW, looks like the Thai guy doesn't have the polymer tires on the wheel blanks. That's important for grip!