Matthew Gentile

I have verified that all the motors, fans, heated bed, and extruder work. However, when I try to run the calibration script, the extruder head nears the platform and then presses itself hard and then drags itself along the platform. I immediately shut off the printer to prevent it from damaging itself. I have checked all the wires and pushed the motor connectors snug into the RAMBo. Anyone else have this problem?