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Drop-on-Demand 3D Printing of Programable Magnetic Composites for Soft Robotics
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Luke Parry,
Robyn Worsley,
Nisar Ahmed,
Edward Lester,
Richard Hague,
Christopher Tuck
Additive Manufacturing Letters, Volume: 11, Start page: 100250
Swansea University Author:
Anil Bastola
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Crown Copyright © 2024. This is an open access article distributed under the terms of the Creative Commons CC-BY license (CC BY 4.0).
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DOI (Published version): 10.1016/j.addlet.2024.100250
Abstract
Soft robotics have become increasingly popular as a versatile alternative to traditional robotics. Magnetic composite materials, which respond to external magnetic fields, have attracted significant interest in this field due to their programmable two-way actuation and shape-morphing capabilities. A...
| Published in: | Additive Manufacturing Letters |
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| ISSN: | 2772-3690 |
| Published: |
Elsevier BV
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa68144 |
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| Abstract: |
Soft robotics have become increasingly popular as a versatile alternative to traditional robotics. Magnetic composite materials, which respond to external magnetic fields, have attracted significant interest in this field due to their programmable two-way actuation and shape-morphing capabilities. Additive manufacturing (AM), also known as 3D printing, allows for the incorporation of different functional composite materials to create active components for soft robotic systems. However, current AM methods have limitations, especially when it comes to printing smart composite materials with high functional material content. This is a key requirement for enhancing responsiveness to external stimuli. Commonly used AM methods for smart magnetic composites, such as direct ink writing (DIW), confront challenges in achieving discontinuous printing, and enabling multi-material control at the voxel level, while some AM techniques are not suitable for producing composite materials. To address these limitations, we employed high-viscosity drop-on-demand (DoD) jetting and developed versatile programmable magnetic composites filled with micron-sized hard magnetic particles. This method bridges the gap between conventional ink-jetting and DIW, which require inks with viscosities at opposite ends of the spectrum. This high-viscosity DoD jetting enables continuous, discontinuous, and non-contact printing, making it a versatile and effective method for printing functional magnetic composites even with micron-sized fillers. Furthermore, we demonstrated stable magnetic domain programming and two-way shape-morphing actuations of printed structures for soft robotics. In summary, our work highlights high-viscosity DoD jetting as a promising method for printing functional magnetic composites and other similar materials for a wide range of applications. |
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| Item Description: |
Short Communication |
| Keywords: |
Magnetic composites, smart materials, additive manufacturing, 3D printing, high-viscosity jetting, soft robotics |
| College: |
Faculty of Science and Engineering |
| Funders: |
This work was supported by an EPSRC Prosperity Partnership (No. EP/S03661X/1). Authors are grateful to Professor Nicola Morley (University of Sheffield) for providing the magnetic camera (MagCam) to obtain the magnetic images of the samples. |
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100250 |