Easy Install Thing-O-Matic Universal X & Y Axis Belt Tensioner

thingiverse

The final version of my X & Y tensioner is now a universal design suitable for both axes. It fits over the four bolts attaching the motor, utilizing existing tension slots. For installation, drill one hole per tensioner; the Y requires a 20mm 3M bolt while the X uses a 16mm one. If the X is too tight, use it on the Y instead. Alternative options include countersunk bolts by Tunell and an addition by M_G that adds plastic under the bolt. Ensure proper bolt and nut tolerances before installing; for the Y, simply slip it over the bolts and screw in, while for the X, partially remove the lower front rail endcap bolt and slide between the rail and motor pulley onto the bolts.