Example: https://www.amazon.com/51-Planetary-Gearbox-Stepper-Precision/dp/B00QEVLDVO
Note the 1 degree backlash, which introduces a problem normally avoided by using stepper motors.
Example: https://www.amazon.com/51-Planetary-Gearbox-Stepper-Precision/dp/B00QEVLDVO
Note the 1 degree backlash, which introduces a problem normally avoided by using stepper motors.