Build it up to break it down again

it's been damn cold up here in the north country, but I've been out in the garage working on the gantry for the router. I often struggle with the problem of redesigning each piece a hundred times before I build it once. For this project I am trying to focus on getting a version 0.1 before I start work on version 1.0. As you can see in the pix, I have the x and the Y axis mostly set up. I don't know how I'm gonna mount the drive screws and nuts, but I'll cross that bridge when I come to it. The angle aluminum and skate bearing concept is but one of many that I saw on cnczone and have adapted for my design. I am going to be very interested in seeing how my machine works once set up. I am obviously not very careful with error correction and alignment. I'm not sure how muh those tiny errors will mutiply in the final finished pieces. Also I haven't seen anyone build out of similar materials, or to the scale that I have. I doubt that tis will win any awards for accuracy, but hopefully it'll do a decent job of cutting big pieces of wood. Only time will tell I suppose.