ok, first attempt using sketchup 8

[deannos]

Hopefully this will work. I hoping to have the Y axis 1500mm long and the x 850mm, this will help with the space i have available and will make it easy with placing the work material. i have 16mm rails,16mm screw on the x. 20mm screw and 25mm rails on the Y axis and i was thinking 16mm screw and 16mm rails on the x axis. This will sit on a steel box section frame. Have i got it right or wrong:confused:. Also going to use belts and pulleys, that's 45x 45 ali profile and 20mm ali plate as well