Advantages of Using a High Resolution Step Motor

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Advantages of Using a High Resolution Step Motor

Postby om_tech_support_JT » Mon Apr 02, 2012 6:01 pm

Q: What are the advantages of using a high resolution type step motor as opposed to a standard 1.8 deg step motor?

A: Using a high resolution type step motor has many advantages and very few disadvantages. A normal 1.8 deg step motor has 50 teeth of its rotor and stator. A high resolution type step motor has 100 teeth of the its rotor and stator. What this means is that a high resolution type motor will now go half the distance with one pulse supplied to its driver/amplifier (when compared with a standard motor). Whenever you are increasing the resolution for a step motor either with a high resolution type step motor, using a geared motor, or by using a microstepping driver, it significantly minimizes vibration and resonance, and makes motor motion much smoother. Since vibration and resonance both are related to audible noise, noise is also significantly reduced. The actual construction difference between the 50 teeth rotor and 100 teeth rotor improves stopping accuracy of the high resolution type step motor. The only disadvantage that I can think of with a high resolution type step motor is that the pulse generator/controller will have to output more pulses to keep the same speed or rotate to the same position (when compared with a standard motor).

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om_tech_support_JT
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Re: Advantages of Using a High Resolution Step Motor

Postby om_tech_support_JT » Fri Apr 27, 2012 5:49 pm

Here's some reference data regarding the increase in stopping accuracy when switching from a standard 0.72 deg step motor to a high resolution type 0.36 deg step motor.

M type.jpg
M type.jpg (269.15 KiB) Viewed 1488 times


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