Re: How can you test a stepper ?

Interesting idea.

Some are hard to turn, some easy.

all lock up tight when just connected to the Gecko, even without any
steps. I assumed that was an indication of good operation.

Dave




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "mayfieldtm <mayfiet@i...>"
<mayfiet@i...> wrote:

> There has been much discussion on this list lately
> about demagnetized step motors.
>
> You can check by shorting all the motor leads together
> (just twist them together) and rotate the motor shaft
> with your fingers.
>
> You should be able to feel the magnetic bumps.
> The harder to turn, the better.
>
> Just for fun, I've directly connected two step motors
> together. (Black Lead to Black, White to White and so on)
> Turning one motor by hand will turn the other in step.
> OK, like I'm easily entertained.
>
> Tom M.