Duplicator i3 belt & chain relief

thingiverse

I spotted my belt being carefully shaved by blocks of printer parts, so I made a conscious decision to use precision bearings instead of modifying those delicate blocks, which would immediately void my manufacturer's warranty. I replaced the blocks with standard Traxxas bearings measuring 5x11x4mm and crafted a custom bracket that barely pushed the belt aside while still performing its job admirably. Earlier, I had seen an x-axis chain relief part in use elsewhere and decided to add one as well. However, this adjustment limits my printer's range on the x-axis to approximately 7.4 inches rather than 8 inches, as the bearing may hit a wall and cause the belt to slip if pushed too far. A quick online search turned up a video that showcases this solution in action, which I have included for reference. The bracket features holes for m3 bolts and includes spacers that create enough space to allow nuts to secure the brackets firmly in place.