Wow! We're all coming out of the woodwork now!
Here is another first time router. Its made with 2" x 2" x 1/4" angle and 4" channel. Spent last weekend welding it up and yesterday grinding and laying on the primer. The working envelope is 24" x 24" x 10". I scored some used THK slides and ball screws on ebay. The controller and stepper motors, too. It will probably be 2 weeks before all of it is in one place, tho. I'll rent a spinning laser level to get the shims right for the slides and then bed it (with a release agent) using JB Weld. Haven't decided on a spindle/router. These components are so heavy that I'm considering 2 spindles; one for wood and one for metal. I'm sure there are complications to this that I haven't worked out yet. I have been toying with the idea of stiffening up the frame with concrete. Anybody have any experience with this?
I want to thank everyone for all the great information in their posts! Since I found this site I have become more obsessed with building the router. You have all given me insperation, information and (spoucal) inflammation (dark) But hey, thanks just the same! (I just had to use that smilie) I value your thoughts and opinions. Please post!