thanks for your advice guys i will make the machine modular that's for sure, as log as modular does not add some heavy cost to the design. by heavy i mean complications and money
anyway...i don't plan to open other topics in the forum for my design, i will ask all the questions here just to keep it simple. I was reading about cnc machines designs,electronics,spindles,steppers,bearings and ect. for over a year by now and as much as i continue to discover new solutions i discover x2 "problems"
one of them is this.
i can't find a bad side of this concept and yet i don't see many builds of this kind, why ? Lifting the rails on steel rectangular tubes and make the gantry attached on a single plate and the plate on bearings. No aluminium column of 20mm plates of some exotic shapes, nothing. It seems to me like this is the ultimate way to make rigid gantry or it has some hidden flaw that i can't see it