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research article

Volumetric helical additive manufacturing

Boniface, Antoine  
•
Maitre, Florian
•
Madrid-Wolff, Jorge  
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January 1, 2023
Light-advanced Manufacturing

3D printing has revolutionized the manufacturing of volumetric components and structures for various fields. Thanks to the advent of photocurable resins, several fully volumetric light-based techniques have been recently developed to push further the current limitations of 3D printing. Although fast, this new generation of printers cannot fabricate objects whose typical size exceeds the centimeter without severely affecting the final resolution. Based on tomographic volumetric additive manufacturing, we propose a method for volumetric helical additive manufacturing (VHAM) multi-cm scale structures without magnifying the projected patterns. It consists of illuminating the photoresist while the latter follows a helical motion. This movement allows to increase the printable object's height. Additionally, we off-center the modulator used for projecting the light patterns to double the object's lateral size. We demonstrate experimentally the interest of using these two tricks for printing larger objects (up to 3 cm x 3 cm x 5 cm) with fine details (650 mu m) and short print time (< 10 min).

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Type
research article
DOI
10.37188/lam.2023.012
Web of Science ID

WOS:001351198900003

Author(s)
Boniface, Antoine  

École Polytechnique Fédérale de Lausanne

Maitre, Florian

École Polytechnique Fédérale de Lausanne

Madrid-Wolff, Jorge  

École Polytechnique Fédérale de Lausanne

Moser, Christophe  

École Polytechnique Fédérale de Lausanne

Date Issued

2023-01-01

Publisher

Light Publishing Group

Published in
Light-advanced Manufacturing
Issue

2

Article Number

12

Subjects

Volumetric additive manufacturing

•

Photolithography

•

Light-based 3D printing

•

Tomography

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAPD  
FunderFunding(s)Grant NumberGrant URL

Swiss National Science Foundation (SNSF)

196971;964497

Available on Infoscience
January 28, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/245502
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