#developable

Working on a sphericon series of developable (ie. zero gaussian curvature) solids to laser cut and assemble this week for the Dalhousie Architecture School Freelab I am working on with Professor Emanuel Jannasch.

Via Flickr: A five-sided twist on a cone. Always wondered why my volubilis experiments never panned out -- that Gottenyu must have started out with a cone. That's not half inscrutable.

Via Flickr: With curves.

Via Flickr: From an eight inch square of linen laid cotton (well, some) paper. Developable is fifty-cent word for "can only bend in one direction at a time." That's not so much a property of paper as it is a dare.

Via Flickr: Amid the pussywillows. 65 lbs. cardstock, 175gsm. A template for the intrepid (15 MB).

Via Flickr: Happy New Year's from snowy New England! A modular kirigami curved surface piece, a rhombic dodecahedral globe calendar. For your New Year's amusement, the following: English (US) Italian French German Spanish Russian I recommend light cardstock, 65 lbs. (175 gsm) or so. If you need a different language or a different set of holidays, please feel free to roll your own: the template in PDF and in EPS. (I was going to do a British English one, but geez, Louise -- the Royal Corgis' Birthday? What kind of national holiday is that?)

Via Flickr: The template. The roundness here is partially real, partially illusion. If you take an icosahedron and replace the vertices with domes, this is what happens. There's a triangular region on each unit that remains flat.