I am having the following issue. For the past three months, my Up Printer Version 1.1, running Firmware version 6.04 has worked fine....until today.
The problem is that mid-print, the extruder stepper motor will just stop spinning. I have disassembled the head and everything is clean, so there isn't any problem with the gear being gummed up and slipping....the stepper motor simply stops spinning.
When I stop the print and initialize the printer, after it has stopped mid-print, and then try to extrude the filament, the head heats up just fine, but when it reaches temperature and beeps the stepper does not spin.
Only if I turn off the machine and initialize the printer does the stepper work again after the head heats up.
I am using pp3dp white ABS, so no new or exotic filament sizes or types have been used.
Any ideas would be really helpful.