Quote Originally Posted by flatty_420 View Post
The problem with no extrusion/slipping hobbed gear on the filament has gotten worse real fast but only with ABS, PLA seems to work fine.
Sounds like a clog or to low of a temperature. Make sure your temp sensor is not working its way out of the extruder.

edit...
Also check your extruder stepper current limiting. Also check your extrusion speed and acceleration, stepper can loose position if you go crazy fast or have to low current settings.