Hi all, we are a group of students working at building a cnc router to help us with our projects. I would like to know if one 5/8 ball screw will be enough to drive the gantry which is 4ft in length and 2 ft high, the gantry is sliding on dual 20mm Igus rails with their polymer bearings.The gantry's foot print is 12" and it has a trave of 36". I have posted a quick rendering of our design below. Any advice is greatly appreciated. Ps the gantry side are 1" thick aluminum plates, and most of the components other components are also aluminum.