4" Wooden Mecanum Wheel

[Ether]

Originally Posted by squirrel

heh...I used the compound rest. I suggested that the error would be pretty low if we made the half roller as two cones. Kevin figured the angles at 6 and 16 degrees, I set the compound rest to those angles to turn it. then we sanded the lump in the middle to radius it.

You could do a similar thing for the parabola.

Or if you had time to kill you could cut a series of steps.

Or not :-)

Anyway, I thought the math might be of interest.