I'm in the design / purchasing phase of my CNC router build. Due to space restrictions, I have been tempted with looking at the possibility of orienting a machine so the X-Y plane is vertical instead of horizontal. For example, I was thinking of an OX with the X-Y in a vertical plane. Dual steppers to drive X in vertical direction, single stepper to drive Y in horizontal direction, and single stepper to drive Z in horizontal direction. This would save significant floor space if it is feasible. Has anyone tried this?