i v some work. this so importand for me i went to a hundred times next to my profesor and he did not accept my coursework
here
feed drive for a vertical mc Z axis

Gworkpiece 8kn
Vzmax 20m/mm
Fzmax 12kn
travel 500mm
worktable 600.600

I need calculation and drawing
i have some drawing for z axis but i thing thats not true
its writen on something on like a :
nut ,cover shild, pulley , bolt anguler position sensor..
thank you very much all guys and thank you for your understanding.. sry 4 english