I ran across the OX and knew it was the one I wanted to build. Some of the things I wanted to include was make it bigger and a little more solid than what the original plans called for. So here is where I am at so far. It will have a cutting area of 48" x 48". The waste board support frame will have more support rails. The Y axis will have (3) 20mm x 60mm rails instead of the original (2) that is called for. 1/4" aluminum OX plates. And a few more odds and ends.