RSUSSH 2020

IN20-229 Folding Thick Materials Using Lattice Hinges

Presenter: Reo Yasue
Kyoto Institute of Technology, Japan

Abstract

          When applying origami, which is known as traditional Japanese play, to industrial products, materials that cannot be ignored in thickness are used. Therefore, Ku (2017) devised a new hinge pattern to realize origami made of thick materials. By using this hinge pattern, even a thick material can be bent up to 135 degrees. It also works stably. However, in order to realize this pattern, there is a problem that a process of bonding a laser-cut board and paper is essential. Based on this previous research, we propose an origami structure that uses a lattice hinge as a new hinge pattern that does not require processes such as laminating materials. This is a hinge pattern that applies a technique that can be bent like a hinge by processing a pattern called a lattice hinge on a thick material with a laser cutter. Then, it is shown that the origami structure can be realized by actually using a laser cutter. Furthermore, a folding box is proposed as an application example of a hinge pattern using a lattice hinge.

Keywords: Lattice hinge; Structural origami; Laser-cutter

Citation format:

Yasue, R., & Li, A.. (2020). Folding Thick Materials Using Lattice Hinges. Proceeding in RSU International Research Conference, May 1, 2020. Pathum Thani, Thailand.

QUESTIONS & ANSWERS

Walaiporn Nakapan (Participant)

Hi Yasue, thank you for your nice presentation. I have seen Jason S. Ku's laminated hinge before. It's great to see that you propose another type of hinge that can be processed by laser cutters without any laminated material. I have 2 questions:
1) How do you choose the pattern of the lattice hinge? And 2) How do you calculate the width of the hinge?

Asst.Prof.Sudjit Sananwai (Visitor)

 

Very interesting topic, I like your idea

But have one question about the criteria for designing a lattice pattern without losing material strength?

Thanks in advance

Anutorn Polphong (Participant)

The hinge technique you proposed and test on is very interesting, especially how you have touched on the material limitation and its form. It is interesting to know what your take on this new form created, as a result of this method you use, and how might we enhance it instead of seeing it as a problem. Also, if you could explain your view on the application of this technique on another type of material, or how one could adapt this technique on a larger, building scale. Thank you.

Reo Yasue (Presenter)

Hi Walaiporn Nakapan,Thank you for your question.
1) How do you choose the pattern of the lattice hinge?
There are various patterns on the lattice hinge.
You can check this site to check it.
https://www.instructables.com/id/Curved-laser-bent-wood/
In this paper, I used the simplest linear pattern.
There are many hinge patterns, so you can try other patterns from a design perspective.

3) How do you calculate the width of the hinge?
Although it is briefly explained in the paper, this site is useful for checking it.
https://www.defproc.co.uk/analysis/lattice-hinge-design-minimum-bend-radius/

Thank you very much.

Reo Yasue (Presenter)

Hi Sudjit Sananwai Thanks for your questions.
Unfortunately, the Lattice hinge loses enough strength to process the hinge.
The possible answers are
In order to prevent excessive machining, it is possible to reduce the strength lost by calculating the maximum bending angle and then performing the necessary machining.

Thank you

Reo Yasue (Presenter)

Hi Anutorn Polphong Thanks for your questions.
The bending angle of the lattice hinge varies greatly depending on the material. It is possible to calculate by applying the material mechanical element, but if this is done accurately, I think that it is also possible to apply it to the architectural element.
Thank you very much.