CR 10 Z-arm Counter ballance

thingiverse

I built this gadget because after fine-tuning my CR10, I noticed that the Z-axis moved smoothly but would drop all the way down to the bed whenever the machine wasn't printing. This mod also reduces the weight of the cross bar on the stepper motor, which should improve print quality. The modification requires two brackets, two pulleys, two bearings, and a weight chamber. You can use this design to mount other components on your printer, such as LED bars, with snap-fit brackets. This gadget uses a standard 608Z ball bearing (like those found in skateboard or rollerblade bearings). To print the bracket, place it on its side with support. For the pulley, print it flat on its back without any support. The weight chamber can be printed without support as well. The weight chamber is designed to slide inside the printer's extrusion for guidance and to hold M10 nuts. By adjusting the Z-axis, you can increase or decrease the weight capacity.