公开(公告)号：US11376796B2

公开(公告)日：2022-07-05

申请号：US16606033

申请日：2018-07-23

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jordi Roca Vila ,  Sergio Gonzalez Martin ,  Daniel Mosher ,  David A. Champion ,  Jun Zeng

IPC: B33Y50/02 ,  B29C64/393 ,  B29C64/165 ,  B33Y10/00

Abstract: A printing device for adapting a printing parameter in relation to the height of a layer of material deposited during an additive manufacturing process is disclosed. The printing device comprises a printing component to deposit a layer of material that is to be solidified so as to form at least a portion of an object, a controller to determine the height of the layer of material at various positions across the layer and to select voxels of a data model of the object, the selected voxels correspond to the height of the layer of material at said various positions, and the controller is further to use the selected voxels as input for calculating a printing parameter.

公开(公告)号：US20200213576A1

公开(公告)日：2020-07-02

申请号：US16608396

申请日：2017-09-14

Applicant: OREGON STATE UNIVERSITY ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Daniel Mosher ,  Brian Bay ,  David A. Champion

IPC: H04N13/246 ,  H04N13/296 ,  B33Y50/02 ,  B29C64/393

Abstract: Example methods, apparatus, systems, and articles of manufacturing for calibrating a stereo vision system are described herein. An example stereo vision calibration system includes an automated calibration target stand to support a calibration target. The example stereo vision calibration system further includes a calibrator to control the automated calibration target stand to move the calibration target to a plurality of positions according to a sequence of positions while the automated calibration target stand is disposed in an additive manufacturing (AM) machine, and control a stereo vision system of the AM machine to obtain images of the calibration target in the plurality of positions.