Thanks for your reply. I only ment lead screw for the z-axis instead of the treaded rod. Lead screw for XY would be crazy expensive compared with the rest. 🙂
Well i ordered a 600mm trapezoidal T8 lead screw for only 9bucks crazy! 🙂
i still haven’t decided about the size, but im thinking about doing 700mm x 1000mm. Do you think it will still be stiff enough for alu milling?