Heloo dummies!!!! You may heard about 3D printer,electronic robotic arms,and so on have one kind of motors that turn several degree to move like 3D printer. This motor is so cool than the brushed DC motor. Well you may think about what the motor is so cool about. Then you are will know about the stepper motor right now!! lets get started.
Stepper motor is a motor that run by direct current with commands come from ECU (Electronic Control Unit). This stepper motors is look like brushed DC motor and it's works like brushless DC motor. Lets look the parts of stepper motor.
The picture above shown is a parts of stepper motor. Now we going to look at the two main parts of stepper motor. One is the permanent magnet another is the coils.
Stepper motor has many coils,but the coil is individually controlled by ECU like in a 3D printer. The permanent magnet has its own magnetic field and the coil will make its own temporary magnetic field. Now the operation of this stepper motor goes like this.
Each coil has it's own incoming line. This incoming lie is controlled by ECU. The picture above shown is the stepper motor and it's have two coils. The rotor has gear shape teeth that has the north pole in sharp teeth and the south pole in lower part of the teeth. When the coil 1 is energized, the north pole teeth will attract and the south pole will energize in another coil 1. When the coil 2 is energize, the both coil 1 is de energize. So the north pole teeth will attract the coil2 and the south pole will attract to another coil 2. This is principle operation 2 phase stepper motor means it has 2 coil to make one rotation of the rotor.
These stepper motors are so common in 3D printers. The 3D printer control unit send commands to the stepper to move in X and Y position and another stepper motor will move in Z position. So these position will make a perfect 3D model.
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