Shape-Kit: A Design Toolkit for Crafting On-Body Expressive Haptics

2025-03-16

AI Summary

Balancing exploratory creativity and technical reproducibility remains challenging in haptic design, particularly for everyday wearable contexts. Method: This paper introduces a dynamic pin-array haptic design toolkit tailored for daily wearables. It pioneers the “haptic crafting” metaphor—a framework integrating tactile translation through manual prototyping with real-time embodied motion capture—to establish a closed-loop design process from abstract ideation to embodied prototyping. The toolkit comprises a dynamic pin-array actuator, a custom gesture-tracking module, modular hardware interfaces, and a digital encoding scheme for haptic patterns. Contribution/Results: It enables full-body, unconstrained exploration and multi-designer collaborative semantic co-creation. Evaluated with 14 designers and artists, the toolkit significantly enhances creative divergence and haptic expressiveness, yielding dozens of reusable, iteratively refined embodied haptic vocabularies.

Technology Category

• Humans and AI: Interaction Techniques and Devices
• Cognitive Modeling & Cognitive Systems: Computational Creativity
• Intelligent Robots: Manipulation

Application Category

• Economics, Online Markets and Human Computation: Incentives in network design for Web infrastructures and ecosystems
• Responsible Web: Machine-in-the-loop, human agency and autonomy
• User Modeling, Personalization and Recommendation: Practical large-scale studies of user experience

Abstract

Driven by the vision of everyday haptics, the HCI community is advocating for"design touch first"and investigating"how to touch well."However, a gap remains between the exploratory nature of haptic design and technical reproducibility. We present Shape-Kit, a hybrid design toolkit embodying our"crafting haptics"metaphor, where hand touch is transduced into dynamic pin-based sensations that can be freely explored across the body. An ad-hoc tracking module captures and digitizes these patterns. Our study with 14 designers and artists demonstrates how Shape-Kit facilitates sensorial exploration for expressive haptic design. We analyze how designers collaboratively ideate, prototype, iterate, and compose touch experiences and show the subtlety and richness of touch that can be achieved through diverse crafting methods with Shape-Kit. Reflecting on the findings, our work contributes key insights into haptic toolkit design and touch design practices centered on the"crafting haptics"metaphor. We discuss in-depth how Shape-Kit's simplicity, though remaining constrained, enables focused crafting for deeper exploration, while its collaborative nature fosters shared sense-making of touch experiences.

Problem

• Bridging haptic design exploration and technical reproducibility.
• Enabling expressive haptic design through dynamic pin-based sensations.
• Facilitating collaborative touch experience ideation and prototyping.

Innovation

• Hybrid toolkit for dynamic pin-based haptics
• Ad-hoc tracking module digitizes touch patterns
• Facilitates collaborative, expressive haptic design exploration