About this 3D model

Version 2 - 7/1/2014 ------------------- - set screw version of herringbone pinion - Servoless auto-level for Z-axis - J-head version Version 3 - 7/5/2014 -------------------------- **X-end improvements** - I added a mount for a 40x40mm bed fan behind the hot-end mount. There is just enough room for this fan so that it does not hit the bed, the endstop, or the X-axis motor. Use 2x M3x25mm screws and nuts. - I opened the mounting holes for the Z-endstop switch mounting plate. Now it is easier to get the M3 nuts in and connected to the screws. - I tightened the Z-endstop switch mounting plate so that it holds a standard microswitch a little tighter. If the microswitch still wobbles in the mounting plate, use some hot glue from a glue gun to hold it in place.