A lightwieght precise motor drive solution?

Robotics and electronics discussion Mechanical design and actuators
1

Is there an off the shelf solution to accurately rotate along one axis with one arc minute precision and be sub 100 grams? Ideally repeat position ±0.016 degrees.

So far I have been looking into servos driving worm gears, harmonic drive using stepper motors.

Any direction or answers are appreciated, just looking for feasibility right now, thank you.

2

What is your application? You will likely need a geared precision stepper motor with an encoder for that kind of accuracy.

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3

@Jim444 Yes, that is where I have came to in my research as well.

Any recommendations of precision steppers and encoders with good reliability? Getting ready to purchase for a bench test.

4

I would look on EBay searching geared Maxon stepper motor or Faulhaber.
Marlin P Jones and Assoc has a Small precision Medical stepper motor I have bought that is very small nice but has no encoder from Faulhaber.
Hope this helps!

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5

I have used the 12v Faulhaber geared stepper from MJP&A it outputs .34 degrees per step

https://www.mpja.com/Stepper-Motor-41_1-Gearhead-12V/productinfo/34480+MS/