ROB-13656
Stepper motors are great motors for position control. They can be found in desktop printers, plotters, 3d printers, CNC milling machines, and anything else requiring precise position control. Steppers are a special segment of brushless motors. They are purposely built for high-holding torque. This high-holding torque gives the user the ability to incrementally “step†to the next position. This results in a simple positioning system that doesn’t require an encoder. This makes stepper motor controllers very simple to build and use.
These stepper motors, in particular, are used with the Shapoko CNC machine and offer 125 oz.in of torque and 200 steps per revolution. Additionally, each motor has been equipped with extra long 600mm AWG22 wires, making them ideal for CNC applications.
**Note:** This is a [Bipolar](http://en.wikipedia.org/wiki/Bipolar_motor) stepper.
**Features:**
* 2-Phase
* Steps per Revolution: 200
* Step Angle: 1.8°
* Voltage: 3.2V
* Current: 2.0A/Phase
* Resistance: 1.6± 10% Ω/Phase
* Inductance: 5.5± 20% mH/Phase
* Recommended Holding Torque: 125 oz.in
* NEMA 23 Form Factor
* 600mm Long AWG22 Wire
**Documents:**
* [Datasheet](http://cdn.sparkfun.com/datasheets/Robotics/57BYGH420-2.pdf)
* [Shapeoko Assembly Guide](https://learn.sparkfun.com/tutorials/shapeoko-assembly-guide)
* [Product Video](https://www.sparkfun.com/videos#all/LIKyoagk19I/5)
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