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    Three-dimensional printing system with laser calibration system
    2.
    发明授权
    Three-dimensional printing system with laser calibration system 有权

    公开(公告)号：US11491730B2

    公开(公告)日：2022-11-08

    申请号：US16455028

    申请日：2019-06-27

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/268 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

    Abstract: A three-dimensional printing system is configured to selectively solidify a build material at a build plane in a layer-by-layer manner. The three-dimensional printing system includes a laser module, a scan module, and a controller. The laser module is for emitting a light beam along a main optical path from the laser module to the build plane. The scan module includes a motorized mirror and a sensor. The motorized mirror includes a substrate having an optical coating that reflects at least 90% of incoming beam power such that the mirror transmits no more than 10% of the incoming beam power. The sensor is positioned to receive transmitted light from the mirror. The controller is configured to operate the laser module to emit the light beam along the main optical path, analyze a signal from the sensor, and based upon the analysis, to estimate a calibration error for the laser module.

    Three-dimensional printer responsive to external vibrations
    3.
    发明授权
    Three-dimensional printer responsive to external vibrations 有权

    公开(公告)号：US11285672B2

    公开(公告)日：2022-03-29

    申请号：US16455082

    申请日：2019-06-27

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/264 ,  B29C64/245 ,  B29C64/255 ,  B29C64/135 ,  G02B26/10

    Abstract: A three-dimensional printing system for manufacturing a three-dimensional article includes a build platform, a light engine, a sensor, and a controller. The build platform is for supporting the three-dimensional article. The light engine is for addressing the build plane for selectively solidifying the material layer onto an active surface. The sensor is mounted on the light engine and is configured to generate a signal based upon vibrations from an external source. The controller is configured to form layers of the three dimensional article. Concurrent with forming the layers, the controller is configured to receive a signal from the sensor, analyze the signal to compare received vibrations to a predetermined vibration threshold, and, if the received vibrations exceed the predetermined threshold, take further action.

    Sensor that simulates resin optical properties
    4.
    发明授权
    Sensor that simulates resin optical properties 有权

    公开(公告)号：US11034082B2

    公开(公告)日：2021-06-15

    申请号：US15842041

    申请日：2017-12-14

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/112 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/135 ,  G01M11/00 ,  B29C64/129 ,  B29C64/124

    Abstract: A method and system for calibrating a three dimensional printing system includes a specialized sensor. The three dimensional printing system forms a three dimensional article of manufacture through a layer-by-layer process. Layers are formed by the operation of a light engine selectively curing photocure resin onto a face of the three dimensional article of manufacture. The sensor includes a photodetector overlaid by an optical element. The optical element simulates a “dense portion” of an optical path between the light engine and the face of the three dimensional article of manufacture being formed. The “dense portion” of the optical path includes a layer of photocure resin that is disposed between the light engine and the face of the three dimensional article of manufacture.

    THREE-DIMENSIONAL PRINTING SYSTEM WITH LASER CALIBRATION SYSTEM
    5.
    发明申请
    THREE-DIMENSIONAL PRINTING SYSTEM WITH LASER CALIBRATION SYSTEM 审中-公开

    公开(公告)号：US20200001538A1

    公开(公告)日：2020-01-02

    申请号：US16455028

    申请日：2019-06-27

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/268

    Abstract: A three-dimensional printing system is configured to selectively solidify a build material at a build plane in a layer-by-layer manner. The three-dimensional printing system includes a laser module, a scan module, and a controller. The laser module is for emitting a light beam along a main optical path from the laser module to the build plane. The scan module includes a motorized mirror and a sensor. The motorized mirror includes a substrate having an optical coating that reflects at least 90% of incoming beam power such that the mirror transmits no more than 10% of the incoming beam power. The sensor is positioned to receive transmitted light from the mirror. The controller is configured to operate the laser module to emit the light beam along the main optical path, analyze a signal from the sensor, and based upon the analysis, to estimate a calibration error for the laser module.

    SCALABLE AND FAST THREE DIMENSIONAL PRINTING SYSTEM
    6.
    发明公开
    SCALABLE AND FAST THREE DIMENSIONAL PRINTING SYSTEM 审中-公开

    公开(公告)号：US20230150205A1

    公开(公告)日：2023-05-18

    申请号：US18150401

    申请日：2023-01-05

    Applicant: 3D SYSTEMS, INC.

    Inventor： Ben Wynne ,  Robert Mueller ,  Guthrie Cooper

    IPC: B29C64/386 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y50/00 ,  B29C64/277 ,  B29C64/135

    CPC classification number: B29C64/386 ,  B29C64/135 ,  B29C64/277 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  B29K2105/0058

    Abstract: A three dimensional printing system includes a light engine having a spatial light modulator for curing individual layers of a photocure resin to form a three dimensional article of manufacture. The light engine is configured to: (1) receive a slice image that defines an array of energy values for curing a layer, (2) process the slice image to define an image frame compatible with the spatial light modulator, (3) receive an on signal, (4) activate the first light source in response to the on signal; (5) repeatedly send the first defined image frame to the first spatial light modulator during a defined cure time for the single layer of resin; (6) receive an off signal; (7) deactivate the first light source in response to the off signal; and (8) repeat steps (1) - (7) until the three dimensional article of manufacture is formed.

    Three-dimensional printing system with integrated scan module calibration
    7.
    发明授权
    Three-dimensional printing system with integrated scan module calibration 有权

    公开(公告)号：US11192294B2

    公开(公告)日：2021-12-07

    申请号：US16455052

    申请日：2019-06-27

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper ,  John D. Clay

    IPC: B33Y30/00 ,  B33Y50/02 ,  B29C64/135 ,  B33Y50/00 ,  B29C64/386 ,  B29C64/268 ,  B29C64/25 ,  B29C64/393

    Abstract: A three-dimensional printing system for solidifying a photocurable resin in a layer-by-layer manner at a build plane includes a scan module, a transparent plate, a sensor, and a controller. The scan module is configured to scan the light beam along two axes to address the build plane. The transparent plate is positioned in the optical path between the scan module and the build plane. The transparent plate has at least one reflective feature in the optical path. The sensor is mounted above the glass plate and is positioned to receive light reflected from the reflective feature. The controller is configured to operate the scan module to scan the light beam across the build plane, receive a signal from the sensor when the light beam impinges upon the reflective feature, and analyze the signal to verify a proper alignment of the light beam to the build plane.

    THREE DIMENSIONAL PRINTING SYSTEMS WITH OVERLAPPING LIGHT ENGINES
    9.
    发明申请
    THREE DIMENSIONAL PRINTING SYSTEMS WITH OVERLAPPING LIGHT ENGINES 审中-公开

    公开(公告)号：US20180243989A1

    公开(公告)日：2018-08-30

    申请号：US15906073

    申请日：2018-02-27

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/282 ,  B29C64/135 ,  B33Y30/00 ,  B29C35/08

    CPC classification number: B29C64/282 ,  B29C35/0805 ,  B29C64/135 ,  B29C64/393 ,  B29C2035/0827 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: A three dimensional printing system is configured to form a three dimensional article of manufacture through a layer-by-layer process. The layers are formed by selectively adding photocure resin onto a lower face of the three dimensional article of manufacture. The three dimensional printing system includes a plurality of light engines that are configured to define a corresponding plurality of build fields in the resin. The plurality of build fields define one or more overlap zones. The plurality of light engines are configured to define extended threshold zones within the overlap zones that correspond to light engine edge defects and artifacts. A light engine applies a transparency value of less than a specified threshold over an extended threshold zone proximate to an edge of the build field corresponding to the light engine.

    SENSOR THAT SIMULATES RESIN OPTICAL PROPERTIES
    10.
    发明申请
    SENSOR THAT SIMULATES RESIN OPTICAL PROPERTIES 审中-公开

    公开(公告)号：US20180186066A1

    公开(公告)日：2018-07-05

    申请号：US15842041

    申请日：2017-12-14

    Applicant: 3D Systems, Inc.

    Inventor： Guthrie Cooper

    IPC: B29C64/112 ,  B29C64/393 ,  B33Y50/02

    CPC classification number: B29C64/112 ,  B29C64/135 ,  B29C64/393 ,  B33Y50/02 ,  G05B2219/49007

    Abstract: A method and system for calibrating a three dimensional printing system includes a specialized sensor. The three dimensional printing system forms a three dimensional article of manufacture through a layer-by-layer process. Layers are formed by the operation of a light engine selectively curing photocure resin onto a face of the three dimensional article of manufacture. The sensor includes a photodetector overlaid by an optical element. The optical element simulates a “dense portion” of an optical path between the light engine and the face of the three dimensional article of manufacture being formed. The “dense portion” of the optical path includes a layer of photocure resin that is disposed between the light engine and the face of the three dimensional article of manufacture.

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