Stepper motors for robotics

Stepper motors are a class of widely used engines in many applications such as 3D printers or robotics. They convert an electrical pulse in a defined angular movement called steps. Their advantage is that they have a potentially high torque and are quite accurate.

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The small YH42BYGH40-402A stepper motor is ideal for high-precision operations requiring close mechanical-movement control.


The Bipolar 200 Steps/Rev Stepper Motor by Pololu is a NEMA 17-size hybrid model with a holding torque of 3.7

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The NEMA 17 unipolar/bipolar stepper motor (200 steps/rev) proposed here by Pololu has a holding torque of 3.2 and can be controlled in two different modes by compatible stepper motor drivers.

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