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    Method of additive manufacturing by intermittent exposure
    3.
    发明授权
    Method of additive manufacturing by intermittent exposure 有权

    公开(公告)号：US10974445B2

    公开(公告)日：2021-04-13

    申请号：US16985538

    申请日：2020-08-05

    申请人： Carbon, Inc.

    发明人： David Moore

    IPC分类号： B29C64/124 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y10/00 ,  B29K105/00

    摘要： A method of forming a three-dimensional object, is carried out by: providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; filling the build region with a polymerizable liquid, intermittently irradiating the build region with light through the optically transparent member to form a solid polymer from the polymerizable liquid, and continuously or intermittently advancing the carrier away from the build surface to form the three-dimensional object from the solid polymer. In some embodiments, the filling, irradiating, and/or advancing steps are carried out while also concurrently: (i) continuously maintaining a dead zone of polymerizable liquid in contact with the build surface, and (ii) continuously maintaining a gradient of polymerization zone between the dead zone and the solid polymer and in contact with each thereof, the gradient of polymerization zone comprising the polymerizable liquid in partially cured form.

    THREE-DIMENSIONAL PRINTING WITH BUILD PLATES HAVING REDUCED PRESSURE AND/OR CHANNELS FOR INCREASED FLUID FLOW
    5.
    发明申请
    THREE-DIMENSIONAL PRINTING WITH BUILD PLATES HAVING REDUCED PRESSURE AND/OR CHANNELS FOR INCREASED FLUID FLOW 审中-公开

    公开(公告)号：US20190061246A1

    公开(公告)日：2019-02-28

    申请号：US16080819

    申请日：2017-06-30

    申请人： Carbon, Inc.

    发明人： Bob E. Feller ,  David Moore ,  John R. Tumbleston ,  Ronald Troung ,  Kyle Laaker

    IPC分类号： B29C64/245 ,  B29C64/176 ,  B29C64/129 ,  B29C64/277

    摘要： A method and an apparatus of forming a three-dimensional object, wherein the method includes providing a carrier and an optically transparent member having a build surface, said carrier and said build surface defining a build region therebetween; filling said build region with a polymerizable liquid, continuously or intermittently irradiating said build region with light through said optically transparent member to form a solid polymer from said polymerizable liquid, continuously or intermittently advancing (e.g., sequentially or concurrently with said irradiating step) said carrier away from said build surface to form said three-dimensional object from said solid polymer, said optically transparent member comprising a build plate for a three-dimensional printer comprising: an optically transparent first channel layer; an optically transparent, gas permeable second channel layer on the first channel layer; and a flexible, optically transparent, gas-permeable sheet having an upper and lower surface, the sheet upper surface comprising a build surface for forming a three-dimensional object, the sheet lower surface being positioned on the second channel layer.