Wobble Rings for T8 lead screw nut

Z-axis wobble rings for 3D printers using a T8 lead screw nut.

Per lead screw:
- Qty 2: Outer Rings with threads stl
- Qty 1: Middle Ring stl
- Qty 4: 8x3mm neodymium magnets
- Qty 16: 2mm diameter steel or stainless rod cut into pieces (long enough to go from the perimeter of the rings to the center hub.
- Qty 8: 3mm machine screws. 4 to affix the nut to the lower ring, and 4 to affix the bed to the upper ring.
- Qty 4: 6mm steel bearings.