Ender 3 Pro Dual Z Axis Belt Tension System
thingiverse
System was used to more precisely time and stabilze a motor driven dual z axis on a Ender 3 Pro. You need to get a sencond rod, rod mounts and x axis mount for this project to be integrateable. These were not included in the BOM, but can be bought as kits from various sites. Additonally there is a stl file with an 8mm rod to mount the 36 teeth pulley to the ball bearing. This is the biggest failure point of the system, if you 3D print it. Use an 8mm metal or wooden rod for more stability. Nuts and ball bearing are a tight fit by design so the have to be pressed into their associated holes.
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