Hi, i have a M3D and have been printing for a year just fine. Im using simplify 3d and i love it. About 2 months ago, my printer started not extruding right and i would start a print and it would print for a few minuets than stop extruding. I took the print head apart and glued the motor in place cause it was moving. It worked fine for a few weeks then the same problem happened. Then i bought a new nozzle sub assembly and it printed fine for about 1 hour then the same problem. I dont know what could be causing this. The filimet spool spins freely, the feeder gear is clean and there is not a nozzle clog. HELP PLZ.