I am getting an oscillating motor. The cables are connected the same as the x,y, and z motors, which are all working. Is the extruder supposed to have the 3 jumpers on the RAMPS board to enable 1/16 microstepping? Are my settings correct? I have a 43/10 gear ratio with a .5mm extruder nozzle #define DEFAULT_AXIS_STEPS_PER_UNIT {53.33,53.33,2021.4,744.54} Note: I couldn't get the Z axis to work at 4042 by the way until I cut the speed in half and doubled the amount of travel. I'm just wondering since there's no documentation on the parts I've got, maybe someone has the same kit from DIY Tech shop and got theirs to work.