I put my own journey here. Replacing the motor didn’t fix it. Replacing the hotend circuit board made it at least make noises.
I had an issue that started with extrusion just stopping mid-print, so I replaced the extrusion stepper motor and I have nothing but a series of problems ever since.
after replacing the motor, trying an extrusion test did nothing, no movement
tried replacing the cover and the gears first, nothing
replaced all the PTFE in case it was dragging too much, nothing
replaced the hot end circuit board, now at least the motor clunks but I still get a CM2784
So I replaced the entire extruder. The new on…
rdtsc
June 11, 2025, 12:17pm
163
Think I’d heard of similar problems due to the wiring bundle - perhaps a crushed or broken wire, or loose/bad connector. Worth a double-check and close inspection.