Hi all, I am building a new cnc router with a table cutting size of 42" x 30".
I am planning on using 80/20 extrusion, and I am going to use some linear rails, either Hiwin or THK. Do any of you see a performance difference between 15mm rails and 20mm rails? just for clarification, the rail widths are 15mm and 20mm, the heights are the same on both at 15mm.