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Robotic metamorphosis by origami exoskeletons.

Shuhei Miyashita1,2, Steven Guitron3, Shuguang Li3

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Engineers can now change robot capabilities using self-folding origami exoskeletons. This innovative approach allows a magnetic robot to metamorphose into various forms for diverse tasks, offering a recyclable solution.

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Area of Science:

  • Robotics
  • Materials Science
  • Origami Engineering

Background:

  • Metamorphosis in robots is a long-standing engineering goal, hindered by physical constraints and complex coordination in current self-reconfiguring systems.
  • Existing modular robots face limitations in on-site extensibility due to large module sizes and reliance on extensive onboard electronics.

Purpose of the Study:

  • To develop a novel method for robot metamorphosis and capability extension using self-folding origami exoskeletons.
  • To demonstrate a system enabling a basic robot unit to adopt diverse morphologies and functionalities.

Main Methods:

  • A cubical magnetic robot was remotely controlled using a magnetic field.
  • Self-folding origami exoskeletons, activated by heat, were interfaced with the robot to induce morphological changes.
  • Exoskeletons were designed to enable specific functions like object manipulation and locomotion across different environments (ground, water, air).
  • Water-activated removal and interchangeability of exoskeletons were demonstrated.

Main Results:

  • The magnetic robot successfully adopted multiple morphologies by interfacing with various origami exoskeletons.
  • The system demonstrated enhanced robot capabilities, including object manipulation and multi-environment locomotion.
  • The heat-activated self-folding and water-activated removal of exoskeletons were validated, showcasing a complete (re)cycling process.

Conclusions:

  • Origami exoskeletons offer a viable approach to robot metamorphosis, overcoming limitations of traditional self-reconfiguring robots.
  • This method provides a scalable and adaptable platform for extending robot functionality and enabling diverse applications.
  • The developed system represents a significant advancement in creating versatile and recyclable robotic systems.