Take the 2-minute tour ×
Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It's 100% free, no registration required.

I acquired two large bipolar stepper motors a couple of years ago. One, I briefly dismantled and then put back together. Now, when I come to use them, the one I took apart doesn't work, and when I rotate the shaft manually, I can't 'feel' the steps. It's just really smooth.

I know that the driver works as it works with it's identical twin which I didn't take apart. A brief glance inside both motors seems that no bits have gone missing...

Any Ideas what part of the stepper I may not have put back right or is it an electrical problem?

share|improve this question
add comment

1 Answer

You probably (mostly) demagnetized the rotor. It's a nice paperweight now.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.