Z Axis Anti-wobble
thingiverse
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.
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