X-Hinges: 3D Printing Self-Sensing Compliant Mechanisms for Continuous and Multi-DOF Motion Sensing

2026-09-10

AI Summary

本文介绍了一种基于多材料FDM 3D打印的自感应柔性机制设计与制造方法X-Hinges，通过在单次打印中嵌入电阻式传感元件实现连续和多自由度运动感知。

Abstract

We present X-Hinges, a design and fabrication method for self-sensing compliant mechanisms based on multi-material FDM 3D printing. By co-printing two conductive filaments of different conductivities within a compliant body, we embed resistive sensing elements directly during fabrication without post-assembly, enabling continuous motion sensing across multiple degrees of freedom in a single print. The structure supports three degrees of freedom, each equipped with a dedicated sensing element configuration for multi-DOF motion estimation. We develop a precision data acquisition system and data-driven regression models that enable continuous, real-time motion sensing. We also introduce an interactive design tool for customizing the geometry, mechanical properties, degrees of freedom, and sensing configurations of X-Hinges. The tool also supports augmenting existing 3D models with self-sensing structures, endowing ordinary objects with continuous multi-DOF sensing capabilities. Finally, we present a set of application examples demonstrating the capability of X-Hinges for fabricating personalized interactive interfaces.

Problem

• 3D Printing
• Self-Sensing
• Compliant Mechanisms
• Multi-DOF Motion Sensing

Innovation

• Self-sensing
• Multi-material FDM 3D Printing
• Continuous Motion Sensing
• Data-driven Regression Models
• Interactive Design Tool