Stepper Motor Bypass for Makerbots (ALL)

Sometimes you want to be able to quickly disable a stepper without having to shut down your bot to unplug it. This is especially useful - although by no means limited to - when using a stepper extruder. It's nice to be able to flip a switch and spin your gears by hand.

Photos from my DUAL-STEPPER setup ( http://www.thingiverse.com/thing:6362 ); this is connected to allow me to turn off the second stepper and only use one. I built it so I could do some tests and see what difference the seco