Stepper Motors

Precise and Repeatable Speed and Positioning

Stepper motors are DC motors that move in discrete steps. They are prized for their precise speed control and their repeatable positioning ability. Stepper motors can be found in all sorts of applications ranging from clocks to robots and CNC machines.
Stepper motor come in many different sizes, shapes and electromechanical specifications. For more details on selecting and using stepper motors, see the All About Stepper Motors Guide in the Learning System.

Applications:

  • 3D Printers
  • CNC Machines
  • Camera rigs
  • Robotics
  • Printers
  • Precision Gearmotors

Advantages:

  • Precise repeatable positioning
  • Precise speed control
  • Excellent low-speed torque
  • Excellent 'holding torque' to maintain position

Limitations:

  • Low efficiency
  • May need encoder or limit switch to establish a reference position
  • Subject to missed steps if overloaded
This guide was first published on May 21, 2014. It was last updated on May 21, 2014. This page (Stepper Motors) was last updated on May 25, 2019.