sinclair

Thank you for your insightful thoughts. So I took off the stepper motor to check the wiring and yeeks! the pulley fell off - yes all it was was a loose pulley screw. Tightened it up and everything is hunky dory. Retightened the other motor pulleys as well. Much appreciated.

I have returned the stepper driver to its original settings (I have the blue chips as per the photo and had turned it 'clockwise' (to lower the current) initially). However I have no movement (rotation) with the Y axis motor regardless of the stepper driver into which it is plugged. I therefore suspect (hope) that it is just the motor that has burned out (albeit I did not smell any strange odors at any time when it was up and running and it did not feel very hot). Any other tricks or thoughts that I might try prior to ordering another motor to verify that it is indeed just the motor? Much appreciated.

Ultimaker Original. During the first print after I had tightened all screws and pulleys and about 30 minutes into print the X axis stopped working. The motor was warm to touch as was the Y motor at this time. After doing a bit of reading on motor-related posts I have attempted to: adjust x, y and z stop clips; reduce power in the stepper driver (blue chip; 1/4 turn clockwise); and check and retighten all nuts and bolts on the pulleys and axis bars. I did change X with Y stepper driver inputs, and indeed the Y axis motor still worked and the X did not - hence I suspect an X axis motor failure. Is there an easy way to test the X motor function individually and directly? Or is it just a matter of buying a new motor to see if the original was burnt out. How might one avoid a similar problem with the Y and Z motors in the future? Much appreciated.