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Patching Physical Objects

Published: 05 November 2015 Publication History

Abstract

Personal fabrication is currently a one-way process: Once an object has been fabricated with a 3D printer, it cannot be changed anymore; any change requires printing a new version from scratch. The problem is that this approach ignores the nature of design iteration, i.e. that in subsequent iterations large parts of an object stay the same and only small parts change. This makes fabricating from scratch feel unnecessary and wasteful.
In this paper, we propose a different approach: instead of re-printing the entire object from scratch, we suggest patching the existing object to reflect the next design iteration. We built a system on top of a 3D printer that accomplishes this: Users mount the existing object into the 3D printer, then load both the original and the modified 3D model into our software, which in turn calculates how to patch the object. After identifying which parts to remove and what to add, our system locates the existing object in the printer using the system's built-in 3D scanner. After calibrating the orientation, a mill first removes the outdated geometry, then a print head prints the new geometry in place.
Since only a fraction of the entire object is refabricated, our approach reduces material consumption and plastic waste (for our example objects by 82% and 93% respectively).

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References

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  • (2025)“It's Being Unmade!”: Reflections on the Unraveling and (de)fabrication of Machine-Knit Textile TapestriesProceedings of the Nineteenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3689050.3704948(1-12)Online publication date: 4-Mar-2025
  • (2024)Unmake to Remake: Materiality-Driven Rapid PrototypingACM Transactions on Computer-Human Interaction10.1145/368527031:6(1-31)Online publication date: 21-Aug-2024
  • (2024)Don't Mesh Around: Streamlining Manual-Digital Fabrication Workflows with Domain-Specific 3D ScanningProceedings of the 37th Annual ACM Symposium on User Interface Software and Technology10.1145/3654777.3676385(1-16)Online publication date: 13-Oct-2024
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    cover image ACM Conferences
    UIST '15: Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology
    November 2015
    686 pages
    ISBN:9781450337793
    DOI:10.1145/2807442
    Permission to make digital or hard copies of all or part 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 components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 05 November 2015

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    Author Tags

    1. 3d printing
    2. rapid prototyping
    3. sustainability

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    UIST '15

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    UIST '15 Paper Acceptance Rate 70 of 297 submissions, 24%;
    Overall Acceptance Rate 561 of 2,567 submissions, 22%

    Upcoming Conference

    UIST '25
    The 38th Annual ACM Symposium on User Interface Software and Technology
    September 28 - October 1, 2025
    Busan , Republic of Korea

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    View all
    • (2025)“It's Being Unmade!”: Reflections on the Unraveling and (de)fabrication of Machine-Knit Textile TapestriesProceedings of the Nineteenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3689050.3704948(1-12)Online publication date: 4-Mar-2025
    • (2024)Unmake to Remake: Materiality-Driven Rapid PrototypingACM Transactions on Computer-Human Interaction10.1145/368527031:6(1-31)Online publication date: 21-Aug-2024
    • (2024)Don't Mesh Around: Streamlining Manual-Digital Fabrication Workflows with Domain-Specific 3D ScanningProceedings of the 37th Annual ACM Symposium on User Interface Software and Technology10.1145/3654777.3676385(1-16)Online publication date: 13-Oct-2024
    • (2024)FabHacks: Transform Everyday Objects into Home Hacks Leveraging a Solver-aided DSLProceedings of the 9th ACM Symposium on Computational Fabrication10.1145/3639473.3665788(1-16)Online publication date: 7-Jul-2024
    • (2024)FabRobotics: Fusing 3D Printing with Mobile Robots to Advance Fabrication, Robotics, and InteractionProceedings of the Eighteenth International Conference on Tangible, Embedded, and Embodied Interaction10.1145/3623509.3633365(1-13)Online publication date: 11-Feb-2024
    • (2024)DungeonMaker: Embedding Tangible Creation and Destruction in Hybrid Board Games through Personal Fabrication TechnologyProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642243(1-20)Online publication date: 11-May-2024
    • (2024)pARam: Leveraging Parametric Design in Extended Reality to Support the Personalization of Artifacts for Personal FabricationProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642083(1-22)Online publication date: 11-May-2024
    • (2024)Learning to Design 3D Printable Adaptations on Everyday Objects for Robot Manipulation2024 IEEE International Conference on Robotics and Automation (ICRA)10.1109/ICRA57147.2024.10610268(824-830)Online publication date: 13-May-2024
    • (2023)Substiports: User-Inserted Ad Hoc Objects as Reusable Structural Support for Unmodified FDM 3D PrintersProceedings of the 36th Annual ACM Symposium on User Interface Software and Technology10.1145/3586183.3606718(1-20)Online publication date: 29-Oct-2023
    • (2023)3D Printers Don’t Fix Themselves: How Maintenance is Part of Digital FabricationProceedings of the 2023 ACM Designing Interactive Systems Conference10.1145/3563657.3595991(2050-2065)Online publication date: 10-Jul-2023
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