I have finally got something to post.
Here is something I worked on last summer. ( well not really, it is a rendering I did last night ) Keep looking, you'll see.
The challenge, make something out of one piece of 4'x8' - 3/4" Plywood. Sounds simple enough,,,one thing I added to that was I wanted to see if I could do it without mechanical fasteners.
I have included a PDF of a drawing package that I made for this instructable. It has some of my original design revised with "as built" modifications.
Also included, DWG and DXF files of the profiles for anyone with a CNC mill or router. (I just noticed a rib profile missing, i'll fix that soon and replace the files here soon. Till then, if you know your way around a DWG editor you can "copy/paste" one of the other ribs and modify it very easily to reproduce the missing part.
Finally, STL files of a simpler but still articulating version of this. Available for those of you who are lucky enough to have a 3D printer and want to play around with this.
I if you download these and find issues, let me know I will be happy to try and resolve them
Just added for hand cutting DIYers, a PDF of all the profiles 1:6 scale for 1/8" thick material of your choice. Just stick it down and cut away. Use mill board, fun foam, balsa wood, ply...the list goes on and on. enjoy!