Y motor mount torsion box for Prusa simplified Mendel

update 20120103: The machine was commissioned some time ago, and this has been working great! (see picture). I'll adapt this system in all future designs. It will work with belts up to 10 mm wide.

This is part of a small audit I am doing of the current Mendel structure for the utter lack of stiffness of some key parts. The general aim is to have a superior Mendel while still keeping plastic (here: only 27 + 16 grams) & vitamins needs at moderate levels . Any help, comments, contributions and