I am in the process of designing a CNC gantry style arrangement. I need capacity of 49" x 97" . I wish to be able to use a router, plasma cutter, YAG laser through fiber connection, and a CO2 laser. I am designing quick change mounts for the different cutting methods. At this point I think I am leaning in the direction of using ballscrews due to the router loading. With the lasers I would use timing belts, but with the router (3hp) I think screws are best. My main question is, what power servos would I need to be able to power this rig? I am using extruded aluminum as a frame. The X axis will weigh around 25lbs? Will I have problems with different loads on the same set-up? Has anyone heard of such a build before? Any help would be great! Oh, I have seen some decent prices on Yaskawa drives and motors on Ebay. What are your thoughts?
Thank you very much!