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Motor Step movement

How Stepper Motors Work

A stepper motor rotates in small fixed steps, making it useful when a project needs accurate movement without guessing the position.

InsideCoils
MotionSteps
NeedsDriver
Stepper motor learning activity

Simple Idea

A stepper motor has coils inside. When these coils are switched on in a controlled order, the rotor moves a small amount each time.

Instead of spinning freely, it moves step by step. Counting the steps tells us how far it has turned.

How It Works

1

Driver energizes coils

A motor driver sends current through the motor coils in a specific sequence.

2

Magnetic field pulls rotor

The rotor aligns with the active magnetic field.

3

Sequence changes

The next coil is activated, pulling the rotor to the next position.

4

Steps create rotation

Repeating the sequence makes smooth, controlled rotation.

Common Uses

3D printers, CNC machines, camera sliders, robot wheels, rotating platforms, and precise positioning systems.

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