Customized protective visors enabled by closed loop controlled 4D printing

The COVID-19 pandemic makes protective visors important for protecting people in close contacts. However, the production of visors cannot be increased greatly in a short time, especially at the beginning of the pandemic. The 3D printing community contributed largely in fabricating the visor frames u...

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Bibliographic Details
Published inScientific reports Vol. 12; no. 1; p. 7566
Main Authors Ji, Qinglei, Wang, Xi Vincent, Wang, Lihui, Feng, Lei
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 09.05.2022
Nature Publishing Group
Nature Portfolio
Subjects
4D Printing
639/166/987
639/166/988
639/301/923/1028
Case studies
Closed-loop Control
COVID-19
COVID-19 - prevention & control
Fabrication
Humanities and Social Sciences
Humans
Industrial Information and Control Systems
Industriella informations- och styrsystem
multidisciplinary
Pandemics
Pandemics - prevention & control
Printing
Printing, Three-Dimensional
Protective Visor
Science
Science (multidisciplinary)
Sustainable Production
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Summary:The COVID-19 pandemic makes protective visors important for protecting people in close contacts. However, the production of visors cannot be increased greatly in a short time, especially at the beginning of the pandemic. The 3D printing community contributed largely in fabricating the visor frames using the rapid and adaptive manufacturing ability. While there are many open source designs of face visors for affordable 3D printers, all these designs fabricate mono-sized frames without considering diverse users’ dimensions. Here, a new method of visor post-processing technology enabled by closed loop controlled 4D printing is proposed. The new process can further deform the printed visor to any customized size for a more comfortable user experience. FEM analysis of the customized visor also shows consistent wearing experience in different circumstances compared with the old visor design. The fabrication precision and time cost of the method is studied experimentally. A case study regarding the reducing, reusing and recycling (3R) of customized visors in classrooms is proposed to enable the customized visors manufactured in a more sustainable way.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-022-11629-3