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    PROTECTION OF 3D OBJECTS
    4.
    发明申请
    PROTECTION OF 3D OBJECTS 有权

    公开(公告)号：US20220363011A1

    公开(公告)日：2022-11-17

    申请号：US17761233

    申请日：2019-10-09

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Pol Fornos Martinez ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich

    IPC: B29C64/393 ,  B29C64/40 ,  B33Y50/02

    Abstract: Printer control data is generated which includes a three dimensional model for a protective structure to be built around a printed object by a three-dimensional printing apparatus, which protective structure is configured to compensate for the distorting effects of uneven shrinkage during cooling. The three dimensional model for the protective structure comprises a plurality of side panels and at least one extensible member interconnecting two or more of the side panels, which extensible member is configured to be extensible in response to shrinkage of the plurality of side panels during cooling. A method and apparatus is disclosed which obtains object model data defining an object to be built by a three-dimensional printing apparatus and automatically generates a three dimensional model for a suitable protective structure that has extensibility as an integral feature of the design to compensate for uneven shrinkage.

    Dimensions in Additive Manufacturing
    6.
    发明申请
    Dimensions in Additive Manufacturing 有权

    公开(公告)号：US20220067225A1

    公开(公告)日：2022-03-03

    申请号：US17418792

    申请日：2019-10-24

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Victor Diego Gutierrez ,  Manuel Freire Garcia ,  Enrique Gurdiel Gonzalez

    IPC: G06F30/10 ,  B29C64/386 ,  B33Y50/00

    Abstract: An example method includes obtaining, by at least one processor, a plurality of categorised indications of deviations from expected dimensions for at least one object generated using an additive manufacturing apparatus wherein the categories comprise at least two of a first dimension type comprising dimensions which are expected to increase on application of a positive offset to object model data used to generate an object, a second dimension type comprising dimensions which are expected to decrease on application of a positive offset to the object to object model data used to generate an object, and a third dimension type comprising dimensions which are expected to be unaffected by application of an offset to object model data used to generate an object. The method may include determining a geometrical compensation model to apply to object model data for generating objects using additive manufacturing to compensate for anticipated deviations in dimensions.

    OBJECT MODEL DIMENSIONS FOR ADDITIVE MANUFACTURING
    7.
    发明申请
    OBJECT MODEL DIMENSIONS FOR ADDITIVE MANUFACTURING 有权

    公开(公告)号：US20210370611A1

    公开(公告)日：2021-12-02

    申请号：US17403084

    申请日：2021-08-16

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Enrique Gurdiel Gonzalez ,  Jordi Sanroma Garrit ,  Manuel Freire Garcia

    IPC: B29C64/393

    Abstract: In an example, a method includes generating a training dataset for an inference model to generate dimensional modifications to apply to object models to compensate for departures from model dimensions in objects generated using additive manufacturing based on those object models. Generating the training dataset may include acquiring, for each of a plurality of generated objects, (i) an indication of a first dimensional inaccuracy and a second dimensional inaccuracy, wherein the first and second dimensional inaccuracies are acquired in a direction of a first axis and relate to respective first and second object dimensions; and (ii) an indication of object placement within a fabrication chamber during object generation.

    Dimensional compensations for additive manufacturing
    8.
    发明授权
    Dimensional compensations for additive manufacturing 有权

    公开(公告)号：US12109762B2

    公开(公告)日：2024-10-08

    申请号：US17426580

    申请日：2019-04-30

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Sergio Gonzalez Martin ,  Manuel Freire Garcia ,  Ismael Fernandez Aymerich

    IPC: B29C64/00 ,  B29C64/393 ,  B33Y50/02

    CPC classification number: B29C64/393 ,  B33Y50/02

    Abstract: In an example, a method includes receiving, at least one processor, object model data representing at least a portion of a first object that is to be generated by an additive manufacturing apparatus by fusing build material within a fabrication chamber. An indication of an amount of fused build material in a region of the fabrication chamber which is to be below the region in which the first object is to be generated may be determined and a dimensional compensation value to apply to the object model data representing the first object may be determined based on the determined indication. The determined dimensional compensation value may be applied to the object model data to derive modified object model data.

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