About this 3D model
This thing is a derivative of the following: Paxtruder 0.2 - http://www.thingiverse.com/thing:1125 Paxtruder mount - http://www.thingiverse.com/thing:1341 It has been changed to allow the extruder clear the opening in the top of our MakerBot. It also allows for more z travel, as the extruder head is mounted higher.