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    LAYER ORIENTATION IN SELECTIVE DEPOSITION BASED ADDITIVE MANUFACTURING OF PARTS
    45.
    发明申请
    LAYER ORIENTATION IN SELECTIVE DEPOSITION BASED ADDITIVE MANUFACTURING OF PARTS 审中-公开

    公开(公告)号：US20190202113A1

    公开(公告)日：2019-07-04

    申请号：US16235587

    申请日：2018-12-28

    申请人： Evolve Additive Solutions, Inc.

    发明人： J. Samuel Batchelder

    IPC分类号： B29C64/153 ,  B29C64/35 ,  B29C64/176 ,  B29C64/245 ,  B29C64/295

    CPC分类号： B29C64/153 ,  B29C64/176 ,  B29C64/245 ,  B29C64/295 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： A method of producing a 3D part using a selective deposition based additive manufacturing system can include developing a first layer using at least one electrostatography engine, determining a first cross-track offset distance between an average cross-track symmetry line of the first layer and a centerline of a transfer medium, transferring the first layer to the transfer medium such that the average cross-track symmetry line of the first layer is aligned with the centerline of the transfer medium, moving a build platform relative to the transfer medium in the cross-track direction to align the first layer on a part build surface, and transfusing the first layer on the build platform using a transfusion assembly to build the part in a layer-by-layer manner. The first layer comprises at least one of a part material and a support material. The first cross-track offset distance is measured in a cross-track direction perpendicular to an in-track direction of movement of the transfer medium.

    THREE-DIMENSIONAL PRINTING APPARATUS
    47.
    发明申请
    THREE-DIMENSIONAL PRINTING APPARATUS 审中-公开

    公开(公告)号：US20180354192A1

    公开(公告)日：2018-12-13

    申请号：US15997850

    申请日：2018-06-05

    申请人： Roland DG Corporation

    发明人： Fumiyoshi IWASE ,  Takafumi TAKANO

    IPC分类号： B29C64/165 ,  B29C64/35 ,  B29C64/245 ,  B29C64/255 ,  B29C64/209 ,  B29C64/295

    CPC分类号： B29C64/165 ,  B29C64/209 ,  B29C64/245 ,  B29C64/255 ,  B29C64/295 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/00

    摘要： A three-dimensional printing apparatus includes a holder, a printing tank, a printing table, a line head, a conveyor, and a medium placement stage. The holder holds a three-dimensional object that has been printed. The tank is disposed in the holder and stores a powder material. The table is disposed in a printing space of the tank. The powder material is placed on the table. The line head includes nozzles disposed in a straight line in a right-left direction. The conveyor moves the holder relative to the line head in a scanning direction. The stage is disposed on a portion of the holder downstream of the table in the scanning direction and is parallel or substantially parallel to the table in the right-left direction. A medium to undergo test pattern printing effected by the line head is placed on the stage.

    THREE DIMENSIONAL PRINTING SYSTEM WITH RESIN CONTAINMENT SOLUTION
    48.
    发明申请
    THREE DIMENSIONAL PRINTING SYSTEM WITH RESIN CONTAINMENT SOLUTION 审中-公开

    公开(公告)号：US20180345579A1

    公开(公告)日：2018-12-06

    申请号：US15992385

    申请日：2018-05-30

    申请人： 3D Systems, Inc.

    发明人： John Michael Harris ,  Christopher Tanner

    IPC分类号： B29C64/255 ,  B29C64/35 ,  B29C64/124 ,  B29C64/245

    CPC分类号： B29C64/255 ,  B29C64/124 ,  B29C64/135 ,  B29C64/245 ,  B29C64/30 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： A three dimensional printing system includes a resin vessel, a light engine, and a fluid spill containment vessel. The resin vessel is for containing resin and has a transparent sheet on a lower side that provides a lower bound for the resin. The light engine is disposed below the resin vessel for projecting pixelated light up through the transparent sheet. The fluid spill containment vessel is disposed between the resin vessel and the light engine to capture resin that spills from the resin vessel. The fluid spill containment vessel includes a housing for containing the spilled resin, a transparent window for allowing the pixelated light to project up through the fluid spill containment vessel and to the transparent sheet, and a fluid barrier wall surrounding at least part of the clear window and configured to reduce an amount of spilled resin required to occlude the pixelated light.

    RECOATER CLEANING SYSTEM
    49.
    发明申请
    RECOATER CLEANING SYSTEM 审中-公开

    公开(公告)号：US20180339467A1

    公开(公告)日：2018-11-29

    申请号：US15606490

    申请日：2017-05-26

    申请人： Delavan Inc

    发明人： Matthew Donovan ,  Danielle Douskey ,  Andy W. Tibbs

    IPC分类号： B29C67/00 ,  B33Y40/00 ,  B08B5/02

    CPC分类号： B08B5/02 ,  B29C64/218 ,  B29C64/35 ,  B29C64/393 ,  B29K2105/251 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

    摘要： A system for cleaning an additive manufacturing machine recoater includes a position module for sensing and/or determining a position of a recoater of the additive manufacturing machine and a gas manifold disposed in the additive manufacturing machine and configured to spray a pressurized gas on the recoater when the recoater is in at least one cleaning position. The system includes a valve configured to allow the pressurized gas to flow from a gas source to the gas manifold, and a valve control module configured to control the valve as a function of the position sensed and/or determined by the position module.

    COLORING NOZZLE CLEANING ASSEMBLY
    50.
    发明申请
    COLORING NOZZLE CLEANING ASSEMBLY 审中-公开

    公开(公告)号：US20180339465A1

    公开(公告)日：2018-11-29

    申请号：US15630897

    申请日：2017-06-22

    申请人： XYZPRINTING, INC. ,  KINPO ELECTRONICS, INC.

    发明人： HSUEH-KUAN SHIH

    IPC分类号： B29C67/00 ,  B41J2/165 ,  B33Y40/00

    CPC分类号： B41J2/16544 ,  B29C64/112 ,  B29C64/35 ,  B33Y40/00 ,  B33Y70/00 ,  B41J2/16538 ,  B41J2/16541 ,  B41J2002/16558

    摘要： A coloring nozzle cleaning assembly is used to clean a coloring nozzle of a 3D printing device. The coloring nozzle cleaning assembly includes a cleaning tank, a movable scraper and a liquid-absorbent interference member. The cleaning tank includes an opening and receives a cleaning liquid inside. The movable scraper has a contact end placed inside the cleaning tank and immersed in the cleaning liquid, and the contact end can be moved out of the cleaning tank through the opening to scrape against the coloring nozzle. The liquid-absorbent interference member is disposed within an area of the opening, and is located over a liquid level of the cleaning liquid and interferes with a movement course of the movable scraper. Excess cleaning liquid adhered to the movable scraper is absorbed by the liquid-absorbent interference member before the movable scraper cleans the coloring nozzle.