robo R2 Bondtech Drive Gear housing upgrade

6/16/18
i have uploaded a new body and tensioner that works much better when needing to release filament as well as improving grip on flex materials. the tensioner along with the nut and threaded bolt have moved

4/30/18
i had to design a completely new housing in order to get the gear to work properly, it is still in need of updating to accommodate the second extruder when it is offered. it uses all of the existing M3 screws that mount the motor to the housing and to the carriage assembly i