I am not sure if I post this in the right section. I recently learned the hard way the sensitivity of closes loop motor to magnets. By inadvertance, the probe magnet stuck to the housing of the vortex closes loop motor, resulting in the motor heating and destroying itself. To whomever Read this post, be careful!
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Wow, who would have thunk. Thanks for posting!
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Hmmm. Interesting, as I keep a magnet on one of my table legs to pick up metal screws that get in my t-track slots. Will be to be careful.
I was curious to know more so used Google. Found this: Closed loop stepper motors and magnetic fields. | MASSO Community Forums
At 2:30, the stepper starts behaving erratically when an external magnetic field is applied
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Thanks for the video. I should receive another motor soon. I will put pictures of the problematic unit here as soon as I change it!
There is a magnet in the back cover of the Vortex Headstock Rear Cover to hold the Chuck Key. It is several inches away from Motor, but maybe that is not a “good” place for a magnet…
@Dnick I’ve had my vortex since day one. In my experience, the magnet is too weak for its intended purpose. I am quite sure that it is far enough away from the motor and weak enough that it is not causing any issues. YMMV of course.
Ouch !!! That magic smoke left in a big hurry 
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