of frame and x-axis.
I don't know whether I am going to use a rack and pinon or a 1" acme screw yet.
Sides are 2"x4"X 114" 0.25" aluminum C chanel.
Ends are 2"x4"X60" 0.25" aluminum tube.
Cross bars are 2"x2" extrusions (80/20 maybe).
Triangulated brace is 4"x0.25" aluminum plate.
Corner gusstes are 0.25" plate.
I am thinking of using the rail system as described in my last post and skate type bearings as are common on many of the DIY projects that I have seen in the forum.
And
