Volumetric additive manufacturing via tomographic reconstruction
Additive manufacturing promises enormous geometrical freedom and the potential to combine materials for complex functions. The speed, geometry, and surface quality limitations of additive processes are linked to their reliance on material layering. We demonstrated concurrent printing of all points w...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2019-03, Vol.363 (6431), p.1075-1079 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Kelly, Brett E Bhattacharya, Indrasen Heidari, Hossein Shusteff, Maxim Spadaccini, Christopher M Taylor, Hayden K |
| description | Additive manufacturing promises enormous geometrical freedom and the potential to combine materials for complex functions. The speed, geometry, and surface quality limitations of additive processes are linked to their reliance on material layering. We demonstrated concurrent printing of all points within a three-dimensional object by illuminating a rotating volume of photosensitive material with a dynamically evolving light pattern. We printed features as small as 0.3 millimeters in engineering acrylate polymers and printed soft structures with exceptionally smooth surfaces into a gelatin methacrylate hydrogel. Our process enables us to construct components that encase other preexisting solid objects, allowing for multimaterial fabrication. We developed models to describe speed and spatial resolution capabilities and demonstrated printing times of 30 to 120 seconds for diverse centimeter-scale objects. |
| doi_str_mv | 10.1126/science.aau7114 |
| format | Article |
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(LLNL), Livermore, CA (United States)</creatorcontrib><title>Volumetric additive manufacturing via tomographic reconstruction</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>Additive manufacturing promises enormous geometrical freedom and the potential to combine materials for complex functions. The speed, geometry, and surface quality limitations of additive processes are linked to their reliance on material layering. We demonstrated concurrent printing of all points within a three-dimensional object by illuminating a rotating volume of photosensitive material with a dynamically evolving light pattern. We printed features as small as 0.3 millimeters in engineering acrylate polymers and printed soft structures with exceptionally smooth surfaces into a gelatin methacrylate hydrogel. 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| fulltext | fulltext |
| identifier | ISSN: 0036-8075 |
| ispartof | Science (American Association for the Advancement of Science), 2019-03, Vol.363 (6431), p.1075-1079 |
| issn | 0036-8075 1095-9203 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1547793 |
| source | Science Magazine |
| subjects | 3-D printers Additive manufacturing ENGINEERING Evolution Fabrication Gelatin Hydrogels Layering Light Manufacturing Photopolymers Photosensitivity Polymers Printing Rotating matter Rotation Spatial discrimination Spatial resolution Surface properties Three dimensional printing Viscosity |
| title | Volumetric additive manufacturing via tomographic reconstruction |
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