Stepper Motor: Difference between revisions

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==Torque Tests==
==Torque Tests==
===Test 1===
===Test 1===
This test used A4988 driver boards
This test used Nema17 stepper motors driven by A4988 driver boards
http://reprap.org/wiki/Stepper_torque
http://reprap.org/wiki/Stepper_torque


Revision as of 15:38, 9 January 2016

Overview

Stepper Motor

A stepper motor (or step motor) is a brushless, electric motor that can divide a full rotation into a large number of steps. The motor's position can be controlled precisely without any feedback mechanism (see Open-loop controller), as long as the motor is carefully sized to the application.

Lifetime

The typical lifetime for a stepper motor is 10,000 operating hours. This approximates to 4.8 years; given the stepper motor operates one eight-hour shift per day. The lifetime of a stepper motor may vary in regards to user application and how rigorous the stepper motor is run.[1]

See Also

Torque Tests

Test 1

This test used Nema17 stepper motors driven by A4988 driver boards http://reprap.org/wiki/Stepper_torque

M vs n.PNG

Summary: All motors perform well at speeds < 100 revs/min. Dynamical torque starts to drop off at speeds higher than 300 rev/min. The higher the rated current and the lower the inductance, the better the performance at high speeds.

inside a stepper motor

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