Solidoodle 3 & similar Z-axis antiwobble nut cage V1

I've seen many other people’s setup to eliminate Z-wobble, but it just seemed like it could be better. I’ve devised a “cage” for a 5/16”-18 hex nut that has 4 degrees of freedom (X/Y translational, X/Y rotational) to compensate for Z-wobble and a locker for backlash. This is done by 2 different methods.
The first is the actual holder for the nut. It is curved to allow the nut to swivel in the X/Y axis while not rotating on the Z axis. It rests on 2 other layers that give it independent X/Y t