Natetruder MK5 replacement drive with a MatthewLaberge quick change groove mount

I combined the Natetruder MK5 drive(http://www.thingiverse.com/thing:5169) with a MatthewLaberge quick change groovemount(http://www.thingiverse.com/thing:5077). Now you can mount a MakerGear V3 Groove Mount(http://www.makergear.com/products/groovemounts) to an MK5 style drive. The filament feed tunnel has been expanded to 5mm to allow more room.