After replacing a stepper motor driver and a stepper motor, the problem with the extruder motor still exists. That leaves one remaining suspect which is a broken wire in the wire harness to the print head. Now the printer is on the floor awaiting repairs. I may use the opportunity to upgrade to a CAN system, so I’m shopping for a kit to see what the cost will be. A CAN system has been the eventual plan anyways, so now may be the right time.
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