I have enjoyed this site and community for a long time and have wanted to contribute for almost as long.
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.
Challenge on.

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!

Step 1:

Step one cut out a bunch of parts....well maybe not so fast.

I first sketched out some ideas and modeled some parts on the computer.
But then I really just started cutting.

The straight parts were cut simply with a table saw and jigs. 
I printed out "size as"  (1:1) drawings of some of the profiles for cutting. I spray glued my 1:1 drawings on to some 1/4" M.D.F. to make templates for flush trimming with a router.
For the circular parts, all outside cuts were made on a band saw with a circle jig, inside cuts with a jig saw. I did a few tests with a jig but found cutting free hand worked better for me.

About This Instructable


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Bio: I love to build stuff and I feel at home with all the folks I see posting things here. I consider myself lucky to design ... More »
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