Secondary Z-Axis

I've found my z-axis on my Ender 3 Pro wobbly but I am hesitant to make major alterations to a printer.

If you are like me, you might appreciate this very non-invasive extension for Ender 3 Pro which enables you to add a second threaded rod to right side of the printer to stabilize the z-axis movement.

You will need some hardware:

__2x__ M3 screw
__3x__ M4 set screw
__1x__ Lead Threaded Rod (Diameter: 8mm, Pitch: 2mm, Lead: 8mm)
__1x__ Brass Nut for Threaded Rod
__2x__ Ball Bearing for M8 screw with 22mm outer diameter (It's the usual one, [link](https://www.bearingboys.co.uk/Miniature-Bearings/W608ZZ-Shielded-Stainless-Steel-Ball-Bearing-8mm-x-22mm-x-7mm-115304-p))
__2x__ Flanged Ball Bearing for M8 screw with 16mm outer diameter ([link](https://www.bearingboys.co.uk/Miniature-Bearings/F6882RS-Flanged-Sealed-Miniature-Ball-Bearing-8mm-x-16mm-x-5mm-140318-p))
__1x__ Timing Belt (6mm widht, ~500mm length, but I have not designed for specific length, just bought a strip an