Quote:
Originally Posted by avandonk
Steve the Chronos mount is basically two harmonic drives and the PE is predictable and small.
Any stepper or servo driving an harmonic drive is far better than any gearbox alternative.
The belt drives leave the gearboxes for dead!
Bert
|
Bert, from my limited knowledge wouldn't it be comparable to a
planetary gear reduction, only with a non linear eccentricity
built in?
To my way of thinking, that's still a gear reduction, teeth meshing
with teeth.
And any such gearbox is only as accurate as the cut of the teeth.
Not taking anything away from the principle but if it was say a
100:1 harmonic reduction, then it should exhibit a similar PEC to
a 100:1 planetary or 100:1 worm and worm gear.
I would love to see some figures comparing these to spur gear trains.
Steve