Z Axis Anti-wobble

I remixed this to the following dimensions to fit some bearings I took out of a fidget spinner.
- bearing outer diameter 22mm
- bearing inner diameter 8mm
- bearing depth 7mm
- through holes 8mm
- screw hole 3mm (can be drilled easily for a larger screw)

The bearing should ideally be quite tight. When fitting, I found it useful to flip it upside down and press it down on the edge of a sturdy table. Same goes for the support rod.

Any remaining wobble occurs from the support rod twisting during motion so I will look into fixing this shortly.