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Stepper Motor

Stepper Motor info

Stepper motors are brushless DC motors that divide a full rotation of their shafts into a fixed number of steps. Each electronic pulse sent to a stepper motor makes it move a step. Because of this feature a stepper motor can be used in positioning systems without the need of a feedback mechanism.

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Stepper motors effectively have multiple "toothed" electromagnets arranged around a central gear-shaped piece of iron. The electromagnets are energized by an external driver circuit or a microcontroller. To make the motor shaft turn, first, one electromagnet is given power, which magnetically attracts the gear's teeth. When the gear's teeth are aligned to the first electromagnet, they are slightly offset from the next electromagnet.

This means that when the next electromagnet is turned on and the first is turned off, the gear rotates slightly to align with the next one. From there the process is repeated. Each of those rotations is called a "step", with an integer number of steps making a full rotation. In that way, the stepper motor can be turned by a precise angle.

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$15.00
DRV8825 Stepper Motor Controller is a breakout board for TI’s DRV8825 microstepping bipolar stepper ..
$6.00
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$17.00
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$17.00
TB6612FNG Dual Motor Driver is a motor driver breakout board to drive two bidirectional DC motors or..
$8.00
L9110S Motor Driver is a compact board that can be used to drive very small robots. This tiny module..
$4.50
NEMA 23 - Stepping Motor, is a 200 step/revolution unipolar stepper motor frequently used in CNC pro..
$20.00
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$65.00
This NEMA 11-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). E..
$19.84
This NEMA 11-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). E..
$27.00
This NEMA 14-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). E..
$19.29
This NEMA 14-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). E..
$17.63
This NEMA 14-size hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). E..
$22.04
This NEMA 17-size hybrid stepping motor can be used as a unipolar or bipolar stepper motor and has a..
$26.38
This NEMA 17-size hybrid bipolar stepping motor has an integrated 28 cm (11″) threaded rod as i..
$66.12
Pololu Stepper Motor: Bipolar, 200 Steps/Rev, 57×76mm, 3.2V, 2.8 A/Phase has a 1.8° step angle (200&..
$62.81
The TB6612FNG is a great dual motor driver that is perfect for interfacing two small DC motors to a ..
$7.00
About the Product Pololu A4988 Stepper Motor Driver Carrier is a carrier board or break..
$19.00
EiBotBoard v.2.0 Motor Controller is a general purpose open source PIC18F46J50-based motor controlle..
$75.00