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Discussion Starter · #1 ·
Pardon the double entendre....

If you would be so kind, would you take a gander at the "Grand Central" table at this link and fathom a guess as to what the hinges are made from--assuming they're all made from the same thing.

https://vimeo.com/14001147

It almost strikes me as some scored plastic somehow glued on to the pieces.

By the way, for the math gifted, I think the largest you can make the 4 equidistant folds in the table, and still have it fold correctly is around half the distance of the table's radius when fully extended--but I can't prove that yet and I would love someone to suggest otherwise with rationale to back such a claim up.

Many thanks!!!!

Oh--and I'm thinking that in theory, this could be done with inset piano or butler hinges. Tell me what you think about that.
 

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Thanks for sharing the video. That's an amazing puzzle of a project.
As for hinges, I'm guessing they used either a heavy canvas (like on the back of some roll-top desk) or a white rubber about the thickness of an inner tube. These would allow repeated folding whereas plastic would break after folding back and forth a few times.
Some projects are more fascinating than they are practical. This falls into that category.
 

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