Summary

Inspired by the bearing-less zAxis stabilizers and the slide-on tool holders.

I tried the other zAxis stabilizers but was frustrated by the clip sliding down. hpekristiansen's clip mod attacked this issue, but I also didn't like sacrificing that little bit of height at the top of the zAxis where the motor would bind. With this mod, the guide slides into the track at the top, outside the 3D printer's zAxis boundary.

Used the tracks from That_Jamie_S_Guy's Ender3 toolholder

"V2" uses the same "flange" shape as lac826's original design.
"V3" is a "phat" version, and should provide a little more ridgidity to the bottom section while maintaining the necessary clearance of the original.

Compatible with "Fillament Guide simple" by WalleYYY
https://www.thingiverse.com/thing:4930922

Compatible with "Ender 3 / CR-10 Z-Axis Manual Adjustment Knob" by 3nderlab
https://www.thingiverse.com/thing:4299772
and similar manual zAxis adjustment knobs