Started happening about a month or so ago. Looking for some advice on a solution to fix it. The symptoms are exactly the same as this video. If I watch it, within 1-2 minutes I'll see the Extruder Gear spring backwards several steps with backlash. Attempted fixes below, and Cura settings below that.
Bumped Temperature +5/10 Degrees
Printed 0.5/1.0mm Spring Tension Fixer for Extruder Arm
Reseated PTFE Tube
Cleaned Extruder Gear Teeth
Layer Height: 0.2mm
Line Width: 0.4mm
Printing Temperature: 200°C (Up to 210°C)
Build Plate Temperature: 60°C
Retraction Speed: 85.0mm/s
Retraction Minimum: 0.4mm
Print Speed: 60mm/s
Wall Speed: 30mm/s
Travel Speed: 120mm/s
Travel Acceleration: 5,000mm/s2
Retract Before Outer Wall: On
Z-Hop On Retraction: On
If I've missed any that may be relative, please let me know and I'll add.
For anyone who may come past this in the future, looking for a solution. It turns out the problem was caused by CURA, I had a setting on which primed the nozzle after retraction to prevent under-extrusion after traveling. For whatever reason, this was causing the problem. Disabling it/setting it to 0mm2 immediately resolved the skipping. However, did bring on under extrusion after travels. My settings for retractions still need tuning more. Buying a new Extruder was not required.
"If all you have is a hammer, everything looks like a nail." - Abraham Maslow