Mimosa: Modular Self-folding Hinges Kit for Creating Shape-changing Objects

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Abstract

We developed a shape-changing constructive kit, named Mimosa1. A key component of the toolkit is the modular hinges, each of which is equipped with two antagonistic shape memory alloy (SMA) wires. One wire deforms the hinge to approach its predetermined angle at high temperature, and another wire drives the hinge back when it cools down. Hinge leaves are available in different materials including acrylic, cardboard and textile, which increases the versatility of the toolkit. Every hinge weighs 2.1-5.4 g, and generates up to 5.7 N actuation force. A Bluetooth control module was developed, enabling remote control of the shape-changing objects. Mimosa aims to inspire designers to explore and create interactive shape-morphing objects with SMAs. A few examples are given such as a gripper, a rolling robot, a butterfly, an airplane and a self-closing pocket. A workshop study with 6 participants showed that Mimosa indeed motivated and inspired the participants to create new ideas.

Original languageEnglish
Title of host publicationTEI 2024 - Proceedings of the 18th International Conference on Tangible, Embedded, and Embodied Interaction
PublisherAssociation for Computing Machinery (ACM)
Number of pages13
ISBN (Electronic)979-8-4007-0402-4
DOIs
Publication statusPublished - 2024
Event18th International Conference on Tangible, Embedded, and Embodied Interaction, TEI 2024 - Cork, Ireland
Duration: 11 Feb 202414 Feb 2024

Publication series

NameACM International Conference Proceeding Series

Conference

Conference18th International Conference on Tangible, Embedded, and Embodied Interaction, TEI 2024
Country/TerritoryIreland
CityCork
Period11/02/2414/02/24

Keywords

  • Crafting
  • Shape Memory Alloy
  • Shape-Changing Interfaces
  • Smart Hinge
  • Tangible User Interfaces
  • Toolkit

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