Quote Originally Posted by jeffmorris View Post
I tried the cold pull but the filament was stuck. I heated the extruder to 230C and pulled the filament out. The end of the filament was thicker than the rest of it. Should I pull the filament out after printing something and I think I don't use the printer for a while?
Did you heat the nozzle? If the nozzle is cold, the filament won't budge. How I do cold pull: with the nozzle at room temp, set the the nozzle to heat up, I usually just set PLA target temp. After the nozzle has heated up to ~80C, start pullin the filament out of the nozzle, it'll need some force to come out so make sure you have good grip. After the filament releases, it should have a uniform tip (like the inside of the nozzle). If not, the tip of the filament is still inside of the nozzle and cold pull failed.