x56 Spring centering solution

This build replaces the center spring on the x56 joystick. It centers perfectly, moves out of center smoothly, and has a full range of motion.

You'll need some suitable springs. I picked mine up at Ace. They didn't have a part number on them, so some trial and error might be necessary. Literally every other spring they had was either WAY too much, or WAY too little. They're decently strong.

Also requires 4x M4x8 screws.

Print 4 shafts and the ring. Remove the existing spring from the joystick and put it on a shelf. Connect a spring to each shaft via screw (see pictures for orientation). It doesn't need to be screwed in the whole way. Printing the shafts individually (either one at a time, or via "Complete individual objects" in PrusaSlicer) is a really good idea.

Fit the ring onto the appropriate spot on the shaft of the joystick. It might take a little wiggling of the ring against the ring of the joystick that spins to screw the stick on, since it's a snug fit. Modify