Additive manufacturing method including thermal modeling and control

    公开(公告)号:US12131102B2

    公开(公告)日:2024-10-29

    申请号:US17450575

    申请日:2021-10-12

    Applicant: Carbon, Inc.

    Abstract: Various embodiments described herein provide a method of making an object from a three-dimensional geometry file and a light polymerizable resin on a light-transmissive window by projection of light through the window in a bottom-up stereolithography process. The method may comprise: slicing the file into a series of sequential images. Temperature fluctuations in the resin may be calculated for at least some of the sequential images upon light polymerization thereof based on sequential exposure of the resin to light, the light corresponding to the series of sequential images. During producing of the object, the production may be modified based on the calculated temperature fluctuations by: (i) reducing production speed during at least a portion of the production; (ii) activating a window cooler during at least a portion of the production; or (iii) increasing production speed during at least a portion of the production.

    Static liquid interface production of lenses and other contoured objects

    公开(公告)号:US11440223B2

    公开(公告)日:2022-09-13

    申请号:US16526071

    申请日:2019-07-30

    Applicant: Carbon, Inc.

    Abstract: An apparatus useful for rapidly producing at least one object having a contoured surface portion from a light-polymerizable resin is provided. The apparatus includes (a) a window containing an inhibitor of polymerization, on which window a coating of light polymerizable resin can be placed, with the inhibitor of polymerization forming a first dead zone of unpolymerizable resin in the light polymerizable resin; (b) a polymerizing light source operatively associated with the window and positioned for projecting polymerizing light through the window; (c) a controller operatively associated with said light source and configured to pattern and project said polymerizing light at a first light dosage sufficient to form the object in the resin under stationary conditions, while spatially modulating the first light dosage so that the first dead zone is spatially contoured in thickness, to produce a first contoured surface portion on each object, which first contoured surface portion is in contact with the first dead zone of unpolymerizable resin.

    PACKAGED RESIN PRODUCTS FOR ADDITIVE MANUFACTURING

    公开(公告)号:US20180370139A1

    公开(公告)日:2018-12-27

    申请号:US16012172

    申请日:2018-06-19

    Applicant: Carbon, Inc.

    Inventor: Matthew Panzer

    Abstract: Resin products useful for making three-dimensional objects by additive manufacturing, as well as methods of making the same, and of using the same, are provided. The resin products may include additional oxygen solubilized in a resin in addition to that amount of oxygen otherwise absorbed by the resin from the ambient atmosphere prior to or during packaging of the resin in a container, less nitrogen solubilized in the resin as compared to that amount of nitrogen otherwise absorbed by the resin from the ambient atmosphere prior to or during packaging of the resin in a container, or both.

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