This is my first experience with Karamba3D; I have modeled a Pratt Truss in grasshopper and I’m using Karamba 1.3.2 to do the finite element analysis for a set of round cross-sections. And the objective is to define a set of cross-sections that can be optimized using OptiCrossSecr. However, the problem is that Karamba is (flattening) deforming the top and the bottom chords of the truss (they are concentric arcs, but the preview is shown as straight lines when I use the Assemble Model component). Any help or ideas on how to solve this problem are appreciated.
I am attaching a screenshot, and a link that explains the Pratt Truss: