Recreus Extruder - Base Mountable

##Number 1 of 5 for [Gyrobot's Extruder Week](http://3dprintboard.com/showthread.php?3038-Single-Dual-and-Quad-Extruder-Week).
Like the original, only base mountable at 50mm hole pitch which is Wades compatible.

[Quick-Fit version here.](http://www.thingiverse.com/thing:307156)

There is a slot for an M6 captive nut so you can add your own hotend or use the [Recreus](http://www.thingiverse.com/thing:263143) style one.

Full filament support after the MK7 gear wheel allows a PTFE