3DPrinting
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: !functionalprint@kbin.social or !functionalprint@fedia.io
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Looks like a bad stepper motor.
I would suggest checking by removing the extruded motor and seeing if it still works. If the motor is the same as your x/y motors, you can also swap the e-motor input to one and ensure it’s not something upstream.
(It could also be motor voltage, but that’s far less likely unless you were tweaking things,)