I am building a 3D printer and I am so close to get up and running. I ran into a problem. When I got the "Extrude" button in Pronterface, my extruder shaft stutters even when there is no filiment in the extruder. I have a full metal gear extruder.

I have rulled out wiring issues and stepper driver issues my moving my motors and driver's around accordingly.

I believe there is a software or command issue.
Does anyone have any ideas?