Building With 2x4's, No Glue, Nails, Fasteners, or Cutting of the Wood Allowed.





Introduction: Building With 2x4's, No Glue, Nails, Fasteners, or Cutting of the Wood Allowed.

Have a pile of 2x4's, and a while before you use them?

Well, if you don't cut them, or use fasteners or glue, they will still be usable in a new project after trying these projects.

The dome was more than 30 feet across. Note that the dome is NOT a geodesic dome, it is actually a lofted tiling.  (Which is why it is so flat.)

The bridge supported two adults of my weight, and that of several children, at the same time.
If I were to do this for something permanent, I'd want to bolt the pieces in place at the places that they cross.



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    any chance this building technique could be applied to the construction of a outdoor structure? Looking to build a outdoor, PVC-framed, tarp-skinned, structure to work on my vehicles and just came across this. It has inspired me to go back to the drawing board perhaps...any suggestions or thoughts would be greatly appreciated

    what's the span of bridge ?


    Ha! Do you think that hexagonal tiling would hold even if it was upside down? Maybe you could do a sphere.

    I'm afraid not. Gravity is what is ultimately holding the pieces together.
    One could inverse the junctions to make a bowl shape, but there is not (to the best of my knowledge) any way to do the vertical sides needed to join the dome and the bowel without needing something more than gravity to hold it together.

    But, now that you mention it, a "flying saucer" shape would be possible, but I've not done an engineering analysis of it. The lower section would have twice the strain, and therefore would hit the size limits much earlier, but I don't know the limits would be. (Nor can I see an immediate way around some assembly issues.)

    The current dome by adding cells to the edges of an original cell. So it was always a dome during construction, and I had freedom to put the legs anywhere. I can't, right off, see what the partly constructed version of the saucer would look like. [I think I'd have to prop parts up during construction to make it work right.]
    If I had to mate it to a lower half I'd have less freedom of where to put each leg, and I have my doubts of whether or not I could be accurate enough to pull it off.

    if you turned the chinese/leonardo bridge on its side and just continued it until the ends met, wouldn't the tension hold it together? I guess you could make a fence like that if you did not need to get in or out...

    I've seen such a fence done that looked like that in animal pens in pictures of nomadic peoples somewhere.
    But those all had at least somewhat elastic materials. I'll have to think about how it would work with something as non-flexible as 2"x4"'s.

    I have seen a similar kind of circular building with a roof made with the rafters all lying on each other in a sort of spiral pattern. I can't remember where I saw it though.

    I can see several ways that could be done, I'd be curious to see it if you find it again.

    This reminds me of the popsicle stick bomb:

    Can you make 2x4 bomb?

    ha the de vinci bridge is the first thing i thought off when i saw this, its great
    i seen a full sides one at his exhibit, maybe your his reincarnation