N_struder REV 0.1

I call this thing the N_struder. With this revision being an N = 2struder. The original design intent was to hack http://www.thingiverse.com/jag awesome http://www.thingiverse.com/thing:7113 for use with my cupcake, but after seeing Makerbot's MK7 I ended up taking it to a whole new level.

Design Concepts:
Cooling Fan: I mostly wanted to use parts and stock I have laying around my shop. The idea with the location of the heatsink is to cool the stepper motor (while still using a MK3 geared D