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    PREDICTION OF END-OF-LIFE OF A DIRECT CURRENT (DC) MOTOR
    1.
    发明申请
    PREDICTION OF END-OF-LIFE OF A DIRECT CURRENT (DC) MOTOR 审中-公开

    公开(公告)号：WO2018190879A1

    公开(公告)日：2018-10-18

    申请号：PCT/US2017/027813

    申请日：2017-04-14

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

    Inventor： KOEHLER, Duane A. ,  EWE, Michael ,  COLLINS, Eric

    IPC: G01R31/34 ,  H02K15/00

    CPC classification number: H02K11/20 ,  G01R31/343 ,  H02K15/00

    Abstract: Described herein are techniques that facilitate the prediction of the end-of-life of a direct current (DC) motor of an apparatus. The described techniques include tracking end-of-life indicative motor-response values of a DC motor based on an applied-voltage value at its corresponding specified speed of the DC motor when the motor is engaged. in response to the determination that the tracked values exceed a range of acceptable operational values, a health-status notification regarding that DC motor is generated. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

    RECOATER MOVEMENT
    4.
    发明申请
    RECOATER MOVEMENT 审中-公开

    公开(公告)号：WO2018194672A1

    公开(公告)日：2018-10-25

    申请号：PCT/US2017/028915

    申请日：2017-04-21

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

    Inventor： EWALD, Brent ,  EWE, Michael ,  COLLINS, Eric ,  SCHALK, Wesley R.

    IPC: B29C64/218 ,  B29C64/10 ,  B33Y30/00

    Abstract: Example systems relate to recoater movement. A non-transitory machine readable medium may contain instructions executable by a processor. The instructions may include instructions to change an action of a recoater in response to a determination that the recoater has reached a first location of a build area comprising build material. Instructions may further include instructions to lift the recoater in response to a determination that the recoater has reached a second location of the build area. Instructions may additionally include instructions to move the recoater over the second location at the lifted position, wherein the second location includes a build-up of the build material.

    3D PRINTER PLATFORM POSITIONER
    6.
    发明申请
    3D PRINTER PLATFORM POSITIONER 审中-公开

    公开(公告)号：WO2018194551A1

    公开(公告)日：2018-10-25

    申请号：PCT/US2017/027980

    申请日：2017-04-17

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

    Inventor： EWE, Michael ,  COLLINS, Eric ,  SCHALK, Wesley R.

    IPC: B29C64/245 ,  B33Y30/00

    Abstract: A 3D printer includes a movable platform, a motor to vertically translate the movable platform during an additive manufacturing process executed by the 3D printer to form a product on the movable platform, a linear encoder strip attached to the movable platform and a linear encoder reader disposed to read the linear encoder strip as the linear encoder strip moves relative to the linear encoder reader. A control circuit is to drive the motor based on an output of the linear encoder reader.

    PRINTHEAD INDEXER
    7.
    发明申请
    PRINTHEAD INDEXER 审中-公开

    公开(公告)号：WO2018190871A1

    公开(公告)日：2018-10-18

    申请号：PCT/US2017/027703

    申请日：2017-04-14

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

    Inventor： COLLINS, Eric ,  OLSEN, Kurt F.

    IPC: B41J29/38 ,  B29C64/227

    CPC classification number: B29C64/232 ,  B29C64/209 ,  B29C64/236 ,  B33Y30/00

    Abstract: Examples disclosed herein relate to printhead indexing. An example method can include rotating a crank arm connected to a coupling bar. The method can include moving a print sled translationally by the coupling bar, where the print sled may be located in X, Z, and Y orthogonal dimensions. In this example, the print sled may be translationally moved to one of a number of index positions by the coupling bar in response to rotation of the crank arm, where the number of index positions are separately located in a Y dimension with the same Z dimension.

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