Download Free 3D Model X-axis tensioner for use with toothed idler. 3D Print Model

Summary
I recently released a x tensioner for use with my own x axis parts. This version is based upon the same design but with a few modifications to suit a stock x axis on the Anet A8 (The version with ABS printed x axis sides though it may work with the injection moulded parts too!)
This is oriented as intended for printing with supports built in. You will need to cut away the supports on the underside of the two prongs, the supports inside the central rectangular hole and most (not all) of the cylinder in the center.
You should ideally leave an equal amount of the central cylinder on either side such that the idler wheel is barely able to move from side to side but can rotate freely when mounted.
My first print of this is not ideal as I had set the bed level incorrectly and had a belt tension problem at the time. I will be reprinting.
Print Settings
Printer:
Anet A8 Rafts:
No Supports:
No Resolution:
0.4mm nozzle and 0.32mm layer (0.2 would also be fine!) Infill:
50% but you can probably get away with a bit less
Post-Printing
Supports will need to be removed from the model after printing and before fitting. You will also need 3 sets of m3 screw and nut to hold the idler in place and fit to the top and bottom of the part to allow you to adjust the screws to tweak the tension in the x axis belt.
How I Designed This
A few modifications on a previous OpenSCAD design used in my version of the x axis idler and motor mounts. Slightly thicker walls to accomodate recesses for nut and screw head on the idler hole, thinner prongs due to available space and slightly increased gap for the idler to be mounted.