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Origami Tanteidan Tokyo, Jan 2006

Posted in the “Information Corner” of the notes from the January Origami Tanteidan Tokyo meeting:

my apologies for the bad babelfish translation.

Information corner / Information

– Concerning the rigid body folding (crossing over Takahiko)
Whether or not from Yamatani’s broken line information which attaches with respect to plane surface, that rigid body folding possibility of the graphic method which decides was thought.
After details, being settled as a dissertation, again it announces.

(In regard to the rigid body folding, you can read Tom Hull’s article inOrigami Tanteidan magazine 86 and 87. Also you can refer to Tom’s article on his website.)

– 3rd diffraction paper engineering research sectional meeting (information: Crossing over Takahiko)
It was held at 2005 December 6 Nitto capital industrial university.
The Hagiwara research (mechanical engineering), the Nojima research (space engineering), Kuribayasi (the micro mechanism Takeuchi research) with, to engineering field of the Origami Tanteidan.
Applied example was announced. Lightweight high intensity core panel and circular membrane of large area ( etc.)
The tableware pet bottle & the book shelf etc. of the retraction receipt model and folding receipt type were introduced.

I’d love for someone who can do a better job of translating to please let me know what the proper translation is for this paragraph. I’m including it in the original language here, in hopes some kind soul will help us out.

情報コーナー/Information

●剛体折りについて (渡邉尚彦)
平面上につけられた山谷の折線情報から,それが剛体折り可能かどうかを判定する図式解法を考えました.
詳しくは、論文としてまとまってから改めて発表します。
(剛体折りに関しては、探偵団マガジン86,87号TomHullさんの記事,Hullさんのサイト Rigid Origamiを参照.)

●第3回折紙工学研究部会 (情報:渡邉尚彦)
2005年12月6日東京工業大学で開催されました。
萩原研(機械工学),野島研(宇宙工学),栗林さん(マイクロメカニズム・竹内研)により、折紙の工学分野への
応用例が発表されていました。軽量高強度コアパネル、大面積の円形膜(ソーラーセイル等)の
巻取り収納モデル、折り畳み収納式の食器・ペットボトル・本棚などが紹介されました。

Why am I sharing all this information? because it’s talking about rigid folding, which is very applicable to many things, especially manufacturing and “industrial” use of origami techniques. It’s also very pertinent to tessellation folding, as much of what we do can be accomplished with rigid-folding techniques. Read Tom Hull’s article linked above for a better idea of what this is all about.

And the part that truly caught my eye is these folded examples, referred to in the quote above. Some very exciting ideas here!

kogaku1

kogaku2

kogaku3

[via] Hideo Komatsu’s blog

3 Comments

  1. Hi Eric,

    I have no clue what this is about, but it sounds like someone recently finished a dissertation on rigid folding from an engineering perspective. I’ll try asking some Japanese folding/math friends of mine for a hint.

    But the bottom two pictures you show look like the work of Tomoko Fuse. She worked with some mechanical engineers 5 years ago (or so) to design some really amazing folded cups. They wrote a brief article on it in the 3OSME Proceedings book, and I saw Fuse give a talk on it at 3OSME. If get a chance to try making one of these things, do so! The idea is that the radial crease lines are all that’s needed — they’re carefully placed so that when they’re all folded, the curvature of the cup will actually hold the folds in place so the cup doesn’t unfold. Fuse actually caught a softball in one of these cups to demonstrate how strong they are. (And during the talk Makoto Yamaguchi asked the important question, “How much beer will one of these cups hold?” 😉

  2. Ah — a friend told me what the first bulleted item says. It reads that WATANABE Naohiko has found a graphic (geometric?) test that determines whether a given crease pattern (with mountain/valley assignment) is a rigid origami or not. It says nothing about the content of his findings. He says he is writing a paper about it, and hopefully I’ll be able to get a copy when it comes out.

  3. Administrator says

    Thanks, Tom- I’m finding the “rigid folding” concepts to be more and more interesting, as I slowly learn more about the ideas behind folding items on a flat plane.

    I’ve been quite happy as of late, in that when I think of new designs, other aspects of what is entailed in the folding process comes to mind; so I get small glimmers of ideas about other things that potential folds could be involved with.

    It’s not much, but it’s more than where I was at before, so I’m devouring reference materials, papers, and books hoping to feed some fuel to this new development.

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