CR-10s Y Stepper Brace with Bearing Support

thingiverse

I recently installed Cornely_Cool's awesome belt tensioners on my CR-10s (https://www.thingiverse.com/thing:2869114 and https://www.thingiverse.com/thing:2854971). After installing them and tightening the belts slightly, I started to worry about stepper shaft flex, particularly when the teeth are coming on and off of the pulley or idler. Seeing some great results from applying this fix to a Prusa i3 MK3's extruder stepper convinced me to try it with my CR-10s' X and Y axes. This version is both a stepper brace and shaft bearing support in one, offering a convenient solution for many users. If you already have a backside brace or a custom setup using dampers, consider this design for solely supporting the stepper shaft: https://www.thingiverse.com/thing:3141177 This Y bracket and stepper shaft bearing support provides several benefits: 1. Stepper bracing ensures that the stepper remains square to the machine, with enough slack to adjust as needed. 2. The embedded MR95ZZ bearing in the brace supports the stepper's shaft, preventing light bending. In my setup, this has completely eliminated Y banding issues. The design is a single piece, easy to print, and includes small slits inside the body that cause your slicer to print additional internal walls for added strength. M5 screw holes are designed to bridge when printed at 0.2mm layer height, eliminating the need for support material if your bridging works well. You can find its X counterpart at: https://www.thingiverse.com/thing:3140464