Topic: Can not figure grinding problem out.
Pic attached. Extruder gear keeps grinding filament ABS and PLA at all tempatures I have tried. Not sure what the problem is. Ideas? Also prints have lots of pimples as seen in the pictures. The grinding happens sometimes on the 3rd layer some times on the last few layers. No ryme or reason to when it starts to grind. Note: using no fan with ABS and the printer is a smartone 200. I have tried slicer, cura, and simplied 3d. all do the same thing.
