I started on my new machine yesterday, a fixed gantry router. I made pretty good progress and hopefully will be cutting parts with it by the middle of this week. As you can see in the pictures, it is comprised of a NSK robot module for the X, and a similar one will be bolted onto the fixed gantry for the Y. A smaller module will work as the Z. The clearance between the gantry supports is 24.5 inches and the clearance under the gantry with the mill surface bolted on is 6+ inches. The gantry is further supported by two 18 inch angle struts, making the whole thing quite rigid. The 20" x 20" x .5" mic6 cast AL plate mill table should be rigid enough for light cuts over the whole surface, and actually should be capable of supporting heavy cuts in the center 10" x 10" area. Sort of a dual purpose machine here I guess..if you want to mill something out of aluminum on a vice, just plop it down in the center of the table...at least that is the idea.
Speeds are going to be insane. Rapids should be in excess of 1000 IPM on all three axis.
Here are the first pics, more to follow after todays work is done: