Metrology-Based Path Planning For Inkjet Printing Along A Contoured Surface

    公开(公告)号:US20190030886A1

    公开(公告)日:2019-01-31

    申请号:US16146592

    申请日:2018-09-28

    Abstract: A method of collecting a metrology data set of a contoured surface with a metrology system and executing an automatic control plan for printing on a contoured surface is disclosed. The method includes attaching a work piece to a work piece frame and scanning a contoured surface of the work piece to obtain a metrology data set, a three-dimensional point cloud model is generated based on the metrology data set. Additionally, the method includes defining a spatial reference model of the work piece frame, and defining a print path for a print head assembly of a surface treatment assembly. Furthermore, the method includes discretizing the contoured surface into a plurality of regions and the print path is further defined into at least one independent regional print path for each region of the plurality of regions. Moreover, a computer software simulation verifies a control plan for printing on the contoured surface.

    SYNCHRONOUS OPERATION OF PERIPHERAL DEVICES

    公开(公告)号:US20210096870A1

    公开(公告)日:2021-04-01

    申请号:US16584559

    申请日:2019-09-26

    Abstract: Disclosed herein is an apparatus that comprises an instruction receiving module configured to receive, at a master device, a set of instructions for operating a plurality of peripheral devices. The apparatus also comprises an instruction identification module configured to identify at least one subset of the set of instructions that are associated with at least one slave device. The apparatus further comprises an instruction distribution module configured to send the at least one subset of instructions to the at least one slave device. The apparatus additionally comprises a trigger module configured to send a start signal, from the master device to the at least one slave device, that triggers the at least one slave device to begin executing the at least one subset of instructions such that each of the plurality of peripheral devices operates synchronously based on the executing instructions.

    Robotic 3D Geometry Direct-To-Surface Inkjet Printing Calibration Process

    公开(公告)号:US20210094221A1

    公开(公告)日:2021-04-01

    申请号:US16588468

    申请日:2019-09-30

    Abstract: Methods of performing a rotational and translational calibrations of a print control system of an inkjet printer system having an inkjet printhead assembly with one or more inkjet printheads are disclosed. Rotational calibration is performed by printing a first rotational calibration pattern from a first standoff distance and a second rotational calibration pattern from a second standoff distance on a first calibration object. The print control system is calibrated until the rotational calibration patterns are within a direction difference tolerance of each other. Translational calibration is performed by printing a first translation calibration pattern on a second calibration object, rotating the inkjet printhead assembly 180°, and printing a second translational calibration pattern on the second calibration object. The print control system is calibrated until the translational calibration patterns are within a direction difference tolerance of each other.

    Adaptive camera control and calibration for dynamic focus

    公开(公告)号:US10951809B2

    公开(公告)日:2021-03-16

    申请号:US16155503

    申请日:2018-10-09

    Abstract: A camera vision system for creating 3D reconstructions of objects may include a camera, a distance sensor having a fixed spatial relationship with the camera, and a system controller. The system controller receives distance sensor signals from the distance sensor indicating a sensor-to-object distance, determines a camera-to-object distance and a corresponding camera focus state based on the sensor-to-object distance, and transmits camera focus state control signals to cause the camera to adjust to the camera focus state. The system controller retrieves camera intrinsic parameter values for the camera focus state, transmits image capture control signals to cause the camera to capture an object image of the object, receives object image data from the camera for the captured object image, and stores the object image data and the camera intrinsic parameter values in an image database for use in the 3D reconstruction.

    Combined surface inspection using multiple scanners

    公开(公告)号:US10018570B2

    公开(公告)日:2018-07-10

    申请号:US15347281

    申请日:2016-11-09

    Abstract: Provided are methods and systems for inspecting surfaces of various components, such as evaluating height deviations on these surfaces. A method involves aggregating inspection data from multiple line scanners into a combined data set. This combined data set represents a portion of the surface that is larger than the field of measurement any one of the scanners. Furthermore, each pair of adjacent scanners operate at different periods of time to avoid interference. Because operating periods are offset, surface portions scanned by the pair of adjacent scanners can overlap without interference. This overlap of the scanned portions ensures that the entire surface is analyzed. The position of scanners relative to the inspection surface may be changed in between the scans and, in some embodiments, even during the scan. This approach allows precise scanning of large surfaces.

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