Readers ask: Where To Salvage Stepper Motors?

Can stepper motors be repaired?

How to choose a repair company. A stepper motor involves a number of parts that include shaft, rotor and stator laminations, magnets, bearings, copper wires and lead wires, washers, and front and end covers. These make it a very complex device and needs specialists and state-of-the-art equipments to repair them.

Where are stepper motors used in cars?

Automotive and Aircraft – Stepper motors help enable cars, SUV’s and RV’s to receive telecommunication signals. Stepper motors are also used for cruise control, military antenna positioners, automated sensing devices, and automated cameras.

What devices have stepper motors?

Stepper motors are diverse in their uses, but some of the most common include:

  • 3D printing equipment.
  • Textile machines.
  • Printing presses.
  • Gaming machines.
  • Medical imaging machinery.
  • Small robotics.
  • CNC milling machines.
  • Welding equipment.

How does a stepper motor fail?

One of the major problems with a stepper motor is complete motor failure. This problem is caused by excessive current being sent to the device by the power supply. A short circuit in the wiring from the power supply to the motor cause this problem with the stepper motor. Some application will cause this short circuit.

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Why my stepper motor is not working?

You see Stepper Drivers provide current to each coils of a Stepper Motor and those current are switched back and forth to make the Stepper Motor rotate. So when a connection to one of the coils gets disconnected it creates a spike (current/voltage) that gets feed back to the Stepper Driver and can cause failure.

Are stepper motors AC or DC?

Stepper motors are DC motors that move in discrete steps. They have multiple coils that are organized in groups called “phases”. By energizing each phase in sequence, the motor will rotate, one step at a time. With a computer controlled stepping you can achieve very precise positioning and/or speed control.

What is the major benefit of a stepper motor?

One of the biggest advantages of stepper motors is their relatively low cost and availability. Stepper motors offer flexibility in application for a wide range of applications because the design of the stepper motor provides a constant holding torque without the need for the motor to be powered.

How are stepper motors controlled?

A stepper motor converts a train of input pulses into a precisely defined increment in the mechanical shaft position, where each pulse moves the shaft through a fixed angle. Stepper motor control provides this input train of pulses to command the motor to move to the desired position or at the desired speed.

What sizes do stepper motors come in?

Step motors are categorized by NEMA frame size, such as “size 11” or “size 23” or “size 34”. Generally speaking, a size 11 step motor means the mounting face of the motor is 1.1 inches square; A size 23 step motor is 2.3 inches square; A size 34 step motor is 3.4 inches square, etc.

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Are all NEMA 17 motors the same?

The NEMA numbers define standard faceplate dimensions for mounting the motor. They do not define the other characteristics of a motor. Two different NEMA 17 motors may have entirely different electrical or mechanical specifications and are not necessarily interchangeable.

What is the difference between a servo motor and a stepper motor?

The main difference between these motors comes from the overall pole count. Stepper motors have a high pole count, usually between 50 and 100. Servo motors have a low pole count – between 4 and 12. Servo motors require an encoder to adjust pulses for position control.

Why do stepper motors need drivers?

A Stepper Motor Driver is the driver circuit that enables the stepper motor to function the way it does. For example, stepper motors require sufficient and controlled energy for phases in a precise sequence. Due to this, stepper motors are considered more advanced than the typical DC motor.

Are stepper motors High torque?

The most notable stepper motor performance characteristics are precise positioning, good holding torque, and good low-speed torque characteristics. But in some cases, application parameters necessitate high torque production at high speeds, while design or control constraints dictate the use of a stepper motor.

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