Overview

My version above is entirely freelance. Even if it was mainly inspired by the Meccano documents, my main constraint was to build an "economic" model -- i.e. with the parts I had in hand at the time. So it "only" needs, beyond the 10-Set contents, some (good stock of) common constructional parts and brassware -- including, to be fair, an additional Bevel pair, two small Helicals, and four 49-holes Flat Girders.