I’ve never been happy with the tight separation between the belt mounts and the belt. The hex screws rub the belt near the pully and visibly wear it down. So, I sat down and created a version with the hex screws positioned 2mm further away from the belt. http://www.thingiverse.com/thing:2322340
Updated stl’s, I made an X- and Y-axis version, due to frame rubbing near the Y-idler mount.
BeltMount_X-axis.stl (75.5 KB)
BeltMount_Y-axis.stl (75.3 KB)