So when I first got my printer a few years ago, I started with ABS and bought a spool of something on ebay. It was the wrong filament to start with. Took me a while to figure out how to print with it. But I never finished the roll. Maybe a 3rd of it and I put it aside.
Recently I decided to use it since I am out of everything else. I baked it low heat for a while to make sure there was not moisture. And at first it printed really good. But then....
Clog... clear it out pain in the but.. Clog... clear it .. clog.
OH MAN. with half the roll left it is a nightmare. I threw the spool across the room. It was a cheap roll and now I remember having the issue originally.
What a waste. When i cleared the clog I could see the little metal flake that was clogging it.
I use a heat gun from my smt solder station to first fuse a piece of ABS inside the nozzle. Cool it. Then heat the nozzle from the very tip slowly so it softens at the tip first and pull the filament out softly and it pulls the the whole piece out and you can see right in the center of the end.
Now I am sitting because I am out of filament. But I think I may go ABS because I was really liking how it was coming out.
I am trying to get get my printer to print a flat circular disc as a test but the filament will not stick. I have a ctc bizer printer that has a heated bed which is at 95 degrees Celsius and my extruder is at 200 degrees Celsius and i am printing with normal PLA filament. Also on the bed I have blue painters tape.
I also have the yellow sheets if you recommend those but I haven't had much success.