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One Z Stepper changed direction
Hi all - I'm not quite sure where to start with this one! one of my Z steppers has just started to run in reverse. This seemed to happen mid print last night, but is now affecting homing - 2 motors will move the bed down as expected, but the 3rd (front left ) is now raising it. The machine has done many hours of successful prints to this point, and of course no wiring or configuration has been changed. Can anyone think why one of the Z steppers would "randomly" change direction? This is of course worrying and can cause a lot of damage I'd rather avoid! Thank you,
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