Monoprice Select Mini. X Axis Belt Tensioner Mod.

This is a mod to modify the X-axis idler end to allow proper tensioning of the stock belt after removing the silly 'cloths pin style' belt tensioner used by default. Those tensioners cause backlash. This does require the x-axis cover to be drilled out as the tensioner screw has to be external. Really easy to do as you can use the printed part as a guide to drill the hole.

I included the STEP file so you can easily adjust the diameter of the holes for the smooth rods if your printer has more/