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Micromachines
Special Issues
Origami Devices: Design and Application
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Origami Devices: Design and Application

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 5637

Special Issue Editor

Dr. Shao-Kang Hung

E-Mail Website
Guest Editor
Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
Interests: mechatronics; Scanning Probe Microscopy; nano measurement and instrumentation; mechanical design; robotics; origami

Special Issue Information

Dear Colleagues,

Paper was invented about 2000 years ago. Due to its inherent folding ability, origami quickly became popular in several cultures and continued to develop for centuries. Nowadays, thanks to computer aided design and modern laser tools, origami is no longer only an art but also a technology. The transformation of 2D plain paper into 3D devices is intricate yet straightforward. The emerging tools are not only functional and useful, but also very interesting and innovative. Paper-based mechanisms, actuators, manipulators, positioners, robots, and machines have been built in recent years. Paper is truly a magic material that offers: printability, foldability, sustainability, ink-conductivity, mass-productivity, cost-effectiveness, and a high strength-to-weight ratio. Paper-based devices can also be used for bio-purposes because they can be completely destroyed through burning. Thousands of kinds of papers have already been developed, but new ones are always being discovered. There are almost infinite possibilities for paper-based origami devices.

In this Special Issue, we invite manuscripts conducting interdisciplinary research from areas of diverse expertise that can promote the further development of origami devices. Contributions related (but not limited) to paper-based actuators, foldable devices, and flexible manipulators are welcome. Furthermore, fundamental theories, dynamics, patterns, as well as fabrication techniques of origami devices are also desirable. The subject is not limited to wood pulp paper. Any paper-like thin films are included, too. Authors are also welcome to submit review articles to summarize state-of-the-art technologies and to propose future research directions.

Dr. Shao-Kang Hung
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • paper-based actuators
  • foldable devices
  • origami pattern designs
  • flexible micro manipulators
  • thin-film hinges/joints/mechanisms
  • fundamentals and dynamics of origami devices
  • fabrication of origami devices

Published Papers (3 papers)

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Research

18 pages, 29355 KiB  
Article
Three-Dimensionally Printed Self-Lock Origami: Design, Fabrication, and Simulation to Improve Performance of Rotational Joint
by Samira Zare, Alex Spaeth, Sandya Suresh and Mircea Teodorescu
Micromachines 2023, 14(8), 1649; https://doi.org/10.3390/mi14081649 - 21 Aug 2023
Cited by 1 | Viewed by 1310
Abstract
Origami structures have made significant contributions to the field of robotics, offering various advantages. One such advantage is their ability to conserve space by transforming the structure into a compact form. Additionally, many origami structures can be fabricated in a flat state to [...] Read more.
Origami structures have made significant contributions to the field of robotics, offering various advantages. One such advantage is their ability to conserve space by transforming the structure into a compact form. Additionally, many origami structures can be fabricated in a flat state to simplify manufacturing, giving them the potential for large-scale and cost-effective production. Rotational joints play a crucial role in the construction of robotic systems, yet origami rotational joints can suffer from a limited range of motion. We previously theoretically proposed the Self-Lock Joint to address this issue, but it is only partially flat-foldable. This paper presents a novel approach to the 3D printing of modular origami joints, such as the Self-Lock Joint, using 3D-printed plates joined with a fabric layer. The compliance of the fabric can improve the joint’s semi flat-foldability or even enable it to achieve complete flat-foldability. Furthermore, the rotational motion of the joint is enhanced, allowing for close to 360 degrees of rotational movement. We assess the physical properties of the joint under both loaded and unloaded conditions in order to identify design trade-offs in the physical properties of the joints. Moreover, as a proof of concept, we construct and demonstrate manipulators utilizing these joints. The increase in rotational movement enabled by this fabrication method, coupled with the compliant joint’s flat-foldability and modular nature, make it a promising candidate for use in a wide range of applications. Full article
(This article belongs to the Special Issue Origami Devices: Design and Application)
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17 pages, 3357 KiB  
Article
Efficient Path Planning for a Microrobot Passing through Environments with Narrow Passages
by Cheng-Ming Huang and Shu-Hsien Hsu
Micromachines 2022, 13(11), 1935; https://doi.org/10.3390/mi13111935 - 09 Nov 2022
Cited by 3 | Viewed by 1372
Abstract
This paper presents an efficient path-planning algorithm for microrobots attempting to pass through environments with narrow passages. Because of the extremely small size of a microrobot, it is suitable for work in this kind of environment. The rapidly exploring random tree (RRT) algorithm, [...] Read more.
This paper presents an efficient path-planning algorithm for microrobots attempting to pass through environments with narrow passages. Because of the extremely small size of a microrobot, it is suitable for work in this kind of environment. The rapidly exploring random tree (RRT) algorithm, which uses random sampling points, can quickly explore an entire environment and generate a sub-optimal path for a robot to pass through it; however, the RRT algorithm, when used to plan a path for a microrobot passing through an environment with narrow passages, has the problem of being easily limited to local solutions when it confronts with a narrow passage and is unable to find the final path through it. In light of this, the objectives of the considered path planning problem involve detecting the narrow passages, leading the path toward an approaching narrow passage, passing through a narrow passage, and extending the path search more efficiently. A methodology was proposed based on the bidirectional RRT in which image processing is used to mark narrow passages and their entrances and exits so that the bidirectional RRT can be quickly guided to them and combined with the deterministic algorithm to find paths through them. We designed the methodology such that RRT generates the sampling points for path growth. The multiple importance sampling technique is incorporated with bidirectional RRT, named MIS-BiRRT, to make the path grow faster toward the target point and narrow passages while avoiding obstacles. The proposed algorithm also considers multiple candidate paths simultaneously to expand the search range and then retain the best one as a part of the planning path. After validation from simulation, the proposed algorithm was found to generate efficient path planning results for microrobots to pass through narrow passages. Full article
(This article belongs to the Special Issue Origami Devices: Design and Application)
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12 pages, 5301 KiB  
Article
Origami Inspired Laser Scanner
by Yu-Shin Wu and Shao-Kang Hung
Micromachines 2022, 13(10), 1796; https://doi.org/10.3390/mi13101796 - 21 Oct 2022
Viewed by 1597
Abstract
Diverse origami techniques and various selections of paper open new possibilities to create micromachines. By folding paper, this article proposes an original approach to build laser scanners, which manipulate optical beams precisely and realize valuable applications, including laser marking, cutting, engraving, and displaying. [...] Read more.
Diverse origami techniques and various selections of paper open new possibilities to create micromachines. By folding paper, this article proposes an original approach to build laser scanners, which manipulate optical beams precisely and realize valuable applications, including laser marking, cutting, engraving, and displaying. A prototype has been designed, implemented, actuated, and controlled. The experimental results demonstrate that the angular stroke, repeatability, full scale settling time, and resonant frequency are 20°, 0.849 m°, 330 ms, 68 Hz, respectively. Its durability, more than 35 million cycles, shows the potential to carry out serious tasks. Full article
(This article belongs to the Special Issue Origami Devices: Design and Application)
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