A picture is worth a thousand words, so here is a video. Two things are going on, a squeaking/whine sound. And also a clicking noise where the filament feed gear seems to be having trouble pulling the filament in.
The squeaking sound has been happening for a while, on and off. The clicking sound with the feed gear started today when I tried printing with some PETG.
I have tried loosening the tension on the feed without any luck. Also tightening, although I don’t think that is the problem. With the PETG I was printing earlier the gear was just biting into the filament and carving into it rather than moving it down the tube.
Is this a sign of a clog?
I am able to print with it, somewhat. Using Polymax PLA in the video below. It will intermittently start clicking and the gear will not push the filament through.