what about the ballscrew diameter? how its calculated? i have 2 x 1300mm length 25mm diameter and 2 x 1000mm but 16mm diameter (1605 i think that is the model).

will be the 16mm very small for the Y Axis? im thinking abt purchase 20mm Hiwin rails as you guys recommend me maybe 2 x 1000mm to get close to 800 mm of travel.


As i have 1300mmm i need to cut it and will waste like 400mm :(


cut the 16mm will be better for me, because can use the UPN that i purchased today and think that will not fit the 20mm rails + 25mm ballscrew because have just 160mm width.