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10 March 2020 High resolution volumetric additive manufacturing (Conference Presentation)
Christophe Moser, Paul Delrot, Damien Loterie
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Proceedings Volume 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII; 1129214 (2020) https://doi.org/10.1117/12.2541762
Event: SPIE OPTO, 2020, San Francisco, California, United States
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.
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Christophe Moser, Paul Delrot, and Damien Loterie "High resolution volumetric additive manufacturing (Conference Presentation)", Proc. SPIE 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII, 1129214 (10 March 2020); https://doi.org/10.1117/12.2541762
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KEYWORDS
Additive manufacturing
Control systems
System integration
Liquids
Photopolymerization
Spatial resolution
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