Hi everyone, im about to build another CNC machine, but now i want to make something really tuff!!! Im thinking on use 1'' thick ( or more ) plates of 7075 Alum. On every single part of the structure.
I want to use it to machine Iron, Aluminium, Steel and maybe once in a while Stainless Steel and hard woods...
Im confused about what kinda geometry to use, like, fixed table with all moving structure ( Like thoose really big wood routers that machine a entire MDF sheet at once, the ones that the table doesnt move at all and its the spindle that goes x,y and z )
Or fixed Y axis, so the Y axis carry the Z and the X axis moves just the table foward and backwards.
Or fixed Z axis, so the Z its attached to a collumn and below you have a x,y table...
I wanted to do it fixed table. Im already used to build like that...
But in terms of structure, precision and tuffness i dont know if its the best choice....
I want to know even if i build really solid and well structured machien with the fixed table, would it still be better to build with moving z and moving x table or x,y table and fixed z? Because I have never seen a metal working machine with fixed table...
Thanks for the attention everyone