Z Threaded Rod Squeak and Wobble

Reference: https://youtube.com/shorts/NdsenIxhMsM

2 questions:

  1. Is the wobble on the threaded rod for my threaded rod acceptable? Grub screws are tight, one on flat.
  2. Is the squeak on motion due to not enough lube? I thought I added enough, but maybe not

The wobble is fine.

The squeak is not too bad, that is usually only a high-speed thing, but a little more lube will not hurt anything.

That’s why Amazon sells Astroglide in 55gal drums…