So... I really like the design of Makerbot's new extruder, and I wanted to try it out. My solution? Since I already have a Printrbot, I decided to design an adapter to mount it with.

Edit: My printrbot seems to not accept the M92 command from pronterface. This means that I cannot recalibrate my e-steps, and my printer cant use this new extruder. Anyone who can help with this, I would appreciate it.