Remixed Z-Axis Stabilization

Even with the anti-black-lash leadscrew, the Ender 5 bed tends to drop once powered off, particularly with mirror or glass beds.

One of the major causes for this is the z-axis leadscrew tends to suffer from axial precession (wobble).

This add-on fixes the issue, and will also stabilize the bed considerably.

In the original model, the hole was undersized (too tight tolerance) and I didn't have a drill to expand the hole, this version of the model doesn't require expansion of the hole.

This will model is intended to work with M4 nut screws, but M3 will also work fine.

My setup uses M3*12 screws with 2 washers on both sides.

I included a copy of T-nut adapters from:
https://www.thingiverse.com/thing:1609323
Two of these will be necessary to fit the part to the 2020 aluminium profile.