Robo R2 X/Y carriage E3dv6 Mod

This is a replacement X/Y carriage for the R2 that allows an e3dv6 hotend to be dropped in without any other modifications other then a Ptfe tube install and firmware edits for the e3dv6 thermistor



6/1/18
i have update all 3 files to insure the bearings fit snugly and without movement and that the ribbon cable has adequate room to rotate in between the bottom and mid carriage layers



6/10/18
i have updated the bottom carriage section to allow the hotend clamp to have more purchas