Testing a ball screw drive mechanism under consideration to replace the belt drive in MegaMax. The mechanism originally came from a heavy industrial machine and used a 200W NEMA-34 size servomotor to move a 30kg piece of the machine around. I took off the motor and shaft coupler and printed an adapter plate to allow me to mount the NEMA-23 size stepper from MegaMax's Y-axis in the NEMA-34 mount. I also printed a flexible shaft coupler to connect the motor shaft to the ball screw. It will take some major modification to MegaMax to install this thing so I just hooked it up to see how much noise it makes on its own before I try connecting the print bed and undercarriage to it.