Creates a flat truss from cylinders, automatically creating a triangular support structure based on the length and height of the truss desired. Takes a long time to compute, please be patient. Also, if you desire to use my point-to-point my trigonometry might be a little off. :-P

EDIT: I got rid of the $fn variables that increased the resolution but increased the render time even more. Supposedly this improves printing as well.

In the openscad file: The cyl_truss() module takes a length (x axis), height (y axis), and diameter of the elements, and does everything for you. The result is a truss structure with the outer dimensions equal to what you specified.