MK3S+ Y motor pulley reverse system and belt tensioner

prusaprinters

To turn the pulley on the y motor 180° (bring the force closer to the motor like on the X-axis) i created this custom bracket (with some other improvements, compare to the stock bracket). To guarantee the clearance please use the custom belt tensioner or the modified Prusa tensioner. The Belt bracket is designed to match the perfect path of idler and pulley and follows the original path. The negativ shape of GT2 belt ist designed with an offset in each direction. If your printer is well adjusted, the assembly should be free of frustration.  There are some similar designs available, but my design is not a remix. So if you have any questions or suggestions, please let me know.  After the first test, everything seams fine. Use the prusa pliers or similar to push the belt carefully into the slot, it is quiet tight but fits perfect. I would suggest to use the belt Bracket without cover, screws and nuts to reduce the moved weight…