thank you very much JAZZCNC for your help

i think i will go to ballscrew as you suggest
one 2510 for X (2m long) but what about wrapping..
one 1610 for Y (1.2 m)
one 1605 for Z (0.5 m)

according to eq. from cncrouterpart suitable V = sqrt(mh)*32 which mean that Nema34 with 3.4mh required 59v for best performance which is close to 60v PS is this correct

i know that Nema23 425oz is better specially for speed but as you mentioned it requires at least 72V which is not available

can i use central 2525 ball screw with Nema34 for X and Y axis