Thoughts on this stepper/lead screw combination

[Dock7676]

Also, I wanted to make sure this big steel top was flat and level, so I just dumped a gallon and a half of self leveling tabletop epoxy on it.....had to share a picture because it would make a sweet table or bar top, no?

[peteeng]

It certainly is unique - and thanks for confirming the Hiwin formula, good to know the maths works!! Peter