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10 March 2020 High resolution volumetric additive manufacturing (Conference Presentation)
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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.
Conference Presentation
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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);

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