Hey all,
This is a great idea. From similar projects in past it might be good to start with physical dimensions of wheelbase, body width etc. Depending who parts are purchased from there will be different measurements so these variables could be left out for the moment ie. roll bars. Another aspect is not to get to carried away with triangulating the chassis until we know its a basic usaable structure. ie why triangulate Brian wolfs plans before making sure you have suspion to fit the thing. This in my opinion should be finalised later on after engine/trans/suspension/basic body dimensions and wheel base are all achieved. One these elements are finished the bracing can be added as the builder sees fit.
I think the best way to start this would be take a builder from this site who has a chassis that the majority agree is well designed, not difficult to build and has possibly already suspension parts etc available. Have the builder measure out important sections put it into cad and then distribute this for people to modify and improve. If we don't copy exactly their chassis just some key sectors we are not infringing on any copyrights.
This is not a new practice. Take the Lamborghini community and the replica builders. Some of the chassis i have seen almost replicate the original and were designed from a few basic dimensions and some photos. Some have actually gone to the effort to measure main structure, suspension pick up points and the basic suspension then released it as plans or a kit.
Also as far as creating the worlds strongest chassis is concerned i think its jumping the gun and not that necessary to most of us. I'm from Australia where our ADR's are very tight yet have a look at the roaring forties image:
http://www.roaringforties.com.au/gallery/images/gallery25_big.jpg
http://www.roaringforties.com.au/gallery/gallery.html
It's simple, strong, has the area to be flexible for changes and has already proven itself. I think this should be the initial aim.
Have a look at the locost, it was one just a 20 pound book with plans and now the community has evolved immensely.
Now the question is, who can provide all the necessary measurements?