I've been printing small parts on this thing for a while now without any problems, but now that I'm trying to print something large, I'm starting to have a problem. It seems the stepper motor just can't push filament out fast enough, and the motor is "slipping". I'm not sure what the motor is actually doing, or what the word for it is, but it's basically being stopped by the resistance of the nozzle/filament, resulting in clicking sounds, and small missing spots in the filament line. I tried turning the temperature up, and the speed down, but it still hasn't stopped.

Initially I was printing with feedrate/travel feedrate/temperature at 100/120/190. Now I'm printing with it at 70/100/220.

Can anyone help with this?