Carrara TWO. That makes things more interesting! I had some luck getting the same general scheme to work using the "add thickness" command instead. I then had to manually link and fill the polygons I wanted...after that another "add thickness" created bars with a square cross-section. It wasn't as neat as it could be. It might have looked better had I the patience to fill all the rectangles before adding thickness to make beams out of them. And, yeah....I was immediately caught by some of the wonderfull shapes you get with subdivision applied. Goes right in the trick bag for ways to get unique shapes.