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CompuMat: A Computational Composite Material for Tangible Interaction

Published: 26 February 2023 Publication History

Abstract

This paper introduces a computational composite material comprising layers for actuation, computation and energy storage. Key to its design is inexpensive materials assembled from traditionally available fabrication machines to support the rapid exploration of applications from computational composites. The actuation layer is a soft magnetic sheet that is programmed to either bond, repel, or remain agnostic to other areas of the sheet. The computation layer is a flexible PCB made from copper-clad kapton engraved by a fiber laser, powered by a third energy-storage layer comprised of 0.4mm-thin lithium polymer batteries. We present the material layup and an accompanying digital fabrication process enabling users to rapidly prototype their own untethered, interactive and tangible prototypes. The material is low-profile, inexpensive, and fully untethered, capable of being used for a variety of applications in HCI and robotics including structural origami and proprioception.

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  1. CompuMat: A Computational Composite Material for Tangible Interaction

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    cover image ACM Conferences
    TEI '23: Proceedings of the Seventeenth International Conference on Tangible, Embedded, and Embodied Interaction
    February 2023
    709 pages
    ISBN:9781450399777
    DOI:10.1145/3569009
    Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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    Published: 26 February 2023

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    Author Tags

    1. Digital fabrication
    2. Flexible electronics
    3. Rapid prototyping

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