Robo 3D R1+ Extruder Body for Flexibles

Spent some time with the original Robo 3D-Provided R1 extruder file to remove all injection molding scallops as well as remove the screw-mount holes for the extruder, and update the inside of the base to work with the R1+ Quick-Release plate. This extruder body should directly take a 4mm PTFE tube inside for filament path support when printing flexible filaments. Saves drilling your OEM unit.

Sketchup file included. I've done a ton of mesh repairs and stupid triangle removal as well, should s