Michael, that's a beautiful design!? I've been modeling something for my Hammer C3 that's similar, but I may need to incorporate some of your ideas.??
Joe Kurtz, there are several places to buy extrusions here in the states.? McMaster Carr is a good choice, and also F and L 8020.? I'm sure there are others.
Here are a few images of what I've been designing for mine. The issue for me is that I needed this to be able to move forward & backward as well as side to side about 20 inches each way, so I've designed a track into it.? I also am considering suspending the entire system from a yet-to-be made overhead cabinet where I can keep all the things I need for the saw (blades, tooling, etc).?
Thanks for sharing, and for the inspiration!
Bob Card