Magnet-Based Soft Robotic Skin Using a 3D-Printed Multi-Lattice Structure and CNN-Based Tactile Super-Resolution

Fuente: arXiv
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Auteurs principaux: Bang, Yunseong, Park, Joowon, Sim, Suan, Ryu, Youngjun, Park, Sukho, Park, Kyungseo
Format: Preprint
Publié: 2026
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author Bang, Yunseong
Park, Joowon
Sim, Suan
Ryu, Youngjun
Park, Sukho
Park, Kyungseo
author_facet Bang, Yunseong
Park, Joowon
Sim, Suan
Ryu, Youngjun
Park, Sukho
Park, Kyungseo
contents This paper presents a magnet-based robotic skin that integrates a multilayer soft lattice with distributed Hall-effect sensor arrays and a tactile super-resolution model. External contact forces are converted to magnetic field changes by embedded permanent magnets, and the lattice spreads these changes across the sensing domain. This gives each sensor a large, overlapping receptive field and enables a large sensing area with minimal blind spots. Lattice parameters are tunable, enabling joint adjustment of mechanical compliance and transduction characteristics. An implicit modeling workflow and selective laser sintering (SLS) 3D printing support rapid fabrication of conformal, high-complexity structures. A convolutional neural network trained on experimental measurements estimates contact location and normal force in real time. Experiments validate localization accuracy and indicate scalability to larger surfaces, suggesting applicability to whole-body robotic skin and safe human-robot interaction.
format Preprint
id arxiv_https___arxiv_org_abs_2605_28352
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Magnet-Based Soft Robotic Skin Using a 3D-Printed Multi-Lattice Structure and CNN-Based Tactile Super-Resolution
Bang, Yunseong
Park, Joowon
Sim, Suan
Ryu, Youngjun
Park, Sukho
Park, Kyungseo
Robotics
I.2.9; I.2.6
This paper presents a magnet-based robotic skin that integrates a multilayer soft lattice with distributed Hall-effect sensor arrays and a tactile super-resolution model. External contact forces are converted to magnetic field changes by embedded permanent magnets, and the lattice spreads these changes across the sensing domain. This gives each sensor a large, overlapping receptive field and enables a large sensing area with minimal blind spots. Lattice parameters are tunable, enabling joint adjustment of mechanical compliance and transduction characteristics. An implicit modeling workflow and selective laser sintering (SLS) 3D printing support rapid fabrication of conformal, high-complexity structures. A convolutional neural network trained on experimental measurements estimates contact location and normal force in real time. Experiments validate localization accuracy and indicate scalability to larger surfaces, suggesting applicability to whole-body robotic skin and safe human-robot interaction.
title Magnet-Based Soft Robotic Skin Using a 3D-Printed Multi-Lattice Structure and CNN-Based Tactile Super-Resolution
topic Robotics
I.2.9; I.2.6
url https://arxiv.org/abs/2605.28352