Hi to all members

i have recently removed x and y axis lead screws to be replaced by ball screws but there is a couple of thing i don't understand if someone could help it would be very appreciated


i weighed up the pros and cons for z drive and decided i would drive the quill and not the knee so i would like to ask if a 16mm ball screw would be larger enough for the z axis , it is a fair size machine it has 32mm lead screws on x&y axis.

what lead would be best for the new ball screws or does the motor to ball screw ratio change things as well as changing speed with the software, it appears to me that the more lead there is the more load would be put on the servo motor at first movement is this correct and have any impact .

what size servo motors would be suitable, and does the lead on all 3 ball screws need to be the same or can this be overcome with gearing or software programing.

can the z axis servo motor be of a smaller size than x&y axis motors because it is moving less weight ,is this correct

kind regards wayne