Robo3d R1 Y Belt Holder

thingiverse

I am completely rebuilding my Robo3D R1 printer and one of the Y belt tensioner was broken. It is a very simple part, but I decided to make some needed changes to improve the design. It allows about 2mm more of travel, the screw does not intrude into the belts path, and it fits better without a lot of slop in the Y bracket. This design makes it easier to install the belt than the original. Also the nut inserts on the top, so it can't fall out if it gets loose.