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Harmonic Drive Through Bore Rotary Axis

Harmonic Drive Through Bore Rotary Axis

grabcad

This design uses a 50:1 harmonic drive with crossed roller bearing on the output.2:1 belt reduction from the clearpath servo motor to allow for a ~1in through bore.Currently using one of the generic "EDM self centering vise" for work holding.4th axis is capable of 180 degrees/sec rotation rate and 70 Nm output torque.The non-symmetric shape of the bracket is to minimize travel loss and give max clearance with the spindle.

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