3D Printing System
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United States of America Patent
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May 26, 2014
filing date -
May 26, 2014
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Abstract
A 3D printing system comprises: a digital micro-mirror device (DMD) mobile device (1); a light source (3), fixed on said DMD mobile device (1) for emitting ultraviolet light, blue light or visible light; multiple DMDs (2) carried on the DMD mobile device (1) for receiving the ultraviolet light, blue light or visible light emitted by the light source (3) and generating 3D object section light; a lens (4) for receiving the 3D object section light reflected by the DMDs (2) and refracting and amplifying the 3D object section light; a material box (5) for containing and providing printing materials; a workbench (6), wherein the 3D object section light refracted by the lens irradiates the printing materials provided by the material box (5) to solidify the printing materials into a 3D object carried on the workbench (6); and a lifting device (7) for lifting the workbench (6). By changing a system structure and moving an original DMD or splicing multiple DMDs, the 3D printing system of the present invention flexibly prints a 3D printing object having a larger sectional area and a constant DPI.
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