I realised that when the lead-screw was pulled out of the Flexible-Coupler all the bearings parts fell off. After reassembling all the parts the tensioning procedure now works successfully.
If I leave the outer clamping collar tight, turning the tensioning knob rotates the lead screw which makes the stepper click. If I loosen the clamping collar, turning the tensioning knob pulls the lead screw out without rotating it, which is why the stepper does not click.
I'm having the same problem where the X stepper won't click. If I keep turning the tensioning knob it will eventually pull the lead screw out of the Flexible-Coupler. I tried powering off and on again and the stepper turns freely; sending command M17 locks it but it still won’t click over.
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I realised that when the lead-screw was pulled out of the Flexible-Coupler all the bearings parts fell off. After reassembling all the parts the tensioning procedure now works successfully.
If I leave the outer clamping collar tight, turning the tensioning knob rotates the lead screw which makes the stepper click. If I loosen the clamping collar, turning the tensioning knob pulls the lead screw out without rotating it, which is why the stepper does not click.
I'm having the same problem where the X stepper won't click. If I keep turning the tensioning knob it will eventually pull the lead screw out of the Flexible-Coupler. I tried powering off and on again and the stepper turns freely; sending command M17 locks it but it still won’t click over.