After a brief stint of successful prints, I seem to have run into an issue with my extruder getting stuck and grinding a notch into the filament, which stops the extruder for the rest of the print.
I thought it might be the cheaper filament I ordered, but I switched back to what little filament I had from lulzbot, and got the same result when printing a test piece.
Attached is a photo of the notch that gets created in the filament.
Do I need to clean out the extruder? Is there something else I need to do to fix this?
Thanks for your time,