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Proceedings Paper

High resolution volumetric additive manufacturing (Conference Presentation)
Author(s): Christophe Moser; Paul Delrot; Damien Loterie

Paper Abstract

In volumetric additive manufacturing, an entire three-dimensional object is simultaneously solidified by irradiating a liquid photopolymer volume from multiple angles with dynamic light patterns. Though volumetric additive manufacturing has the potential to produce complex parts with a higher throughput and a wider range of printable materials than layer-by-layer additive manufacturing, the resolution limit has not been thoroughly studied. We show that a low-etendue illumination system and an integrated feedback system to accurately control the photopolymerization kinetics improve drastically the fidelity and spatial resolution. Hard and soft centimeter-scale parts are produced in less than 30 seconds with 80-µm positive features.

Paper Details

Date Published: 10 March 2020
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Proc. SPIE 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII, 1129214 (10 March 2020); doi: 10.1117/12.2541762
Show Author Affiliations
Christophe Moser, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Paul Delrot, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Damien Loterie, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 11292:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII
Georg von Freymann; Eva Blasco; Debashis Chanda, Editor(s)

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