Hi. I've been planning a 4x8 cnc router for quite some time now. It just dawned on me that I may not have enough space to have a horizontal table in my shop. Has anyone tried an upright design? I would appreciate if someone would point out some of the difficulties of a vertical design. Would save lots of space, and I may be able to convert the back side of the table into a panel saw.
I'm using a 2" ballscrew with a .2 pitch. Wondering how much torque needed to drive a 75lb gantry vertically with this screw.