Here's a new one for me I'm hoping someone can help with. The printer stopped responding in the x-axis mid-print, leaving a solid extruded line in the y-axis and no longer responding to machine jog controls. The stepper motor was cool and the belt/gears/connections looked fine.

I restarted the machine and the x-axis was again responsive. Restarted the print and after about an hour of normal operation the machine started making a clunking noise in response to x-axis commands. It was still trying to print, but was shaking violently. I stopped the print and tried machine jog controls, it responds erratically to x-axis input with a grinding jerky motion.

Any ideas what the problem could be? Maybe a stepper motor or driver? I'm wagering someone's seen this exact same thing .

A few statistics on the all original parts: 1608 hours, 3284 meters of filament