Invention Grant
US09120270B2 Digital mask-image-projection-based additive manufacturing that applies shearing force to detach each added layer 有权
基于数字掩模图像投影的添加剂制造,其应用剪切力以分离每个添加层

Digital mask-image-projection-based additive manufacturing that applies shearing force to detach each added layer
Abstract:
A three-dimensional object may be produced in cascaded layers from a liquid resin that solidifies upon exposure to light. A translation stage may be positioned relative to a vat that is suitable for solidifying the highest un-solidified layer of the three-dimensional object directly beneath any existing, solidified layers of the three-dimensional object. A mask image projection system may project a two-dimensional image of the highest un-solidified layer through a transparent bottom of the vat and into the liquid resin. This may cause at least a portion of the liquid resin to solidify in the shape of the two-dimensional image and to adhere to the bottom of a surface beneath the solidified layer. A shearing force may be applied between the bottom surface of the solidified layer and the surface beneath that is great enough to detach the solidified layer from the surface beneath.
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