MK8 Dual Head Prusa X-Carriage Mount

This is a modification of the original Prusa Mendel x-carriage to fit a dual MK8 extruder. This STL version uses 3 linear bearings, but the SCAD can be altered for other mountings. One of the nozzles has to be temporarily removed in order for this to fit on, then attach with (qty 4) 10mm M3 screws.
--Original:
https://github.com/josefprusa/PrusaMendel
--MK8 Example:
http://www.ebay.com/itm/0-4mm-Dual-Head-Nozzle-Extruder-MK8-Extruder-Makerbo-Upgrade-for-3D-Printer-/281289133407?pt=LH_D