The lack of entries here for three years tells the story that my 2013 Roundsheet specification did not inspire anyone to start building a prototype. In fact, I only showed it to a couple of people, but neither were particularly complimentary. Re-reading the 2013 spec now, I can understand why. In trying to extend the concept to a three dimensional ball, it had all got too complicated. So, I’ve gone back to the basic idea of being able to break circles (Rounds) down into segments (Slices), and being able to collect the Rounds together into a cylinder (Roll). I’ll see what my colleagues think of the revised, simplified spec.