2nd year CAD student and this darn makerbot replicator 2 printer is just a thorn in my side most issues include it refusing to extrude correctly printing my object in a web like mess and its not clogged or stuck in any way. I know that because if i pause and change filament then load the filament comes out in a nice stream, my teacher doesn't even know the issue i spend close to 3 hours a day on the dang thing then go home and research stuff and still nothing has seemed to help me out of all the forums. RIP Google forums. A more recent issue on the machine is the Z axis limit switch acting as though its not their and just driving the bed into the top this issue is now suppressed by a thick piece of tape. anyways im rambling please any input helps ill be checking this regularly through out Christmas break. and on the slightest chance that bre pettis sees this i hate you and your over priced customer support.