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公开(公告)号:US10786983B2
公开(公告)日:2020-09-29
申请号:US15498498
申请日:2017-04-27
申请人: Stratasys Ltd.
发明人: Eliahu M. Kritchman , David Eshed , Guy Menchik
IPC分类号: B33Y30/00 , B29C64/112 , B29C64/124 , B29C64/20 , B29C64/35 , B29C64/40 , B33Y10/00 , B33Y40/00
摘要: A scanning 3-D printing system comprises a printing platform movable in a printing direction and in an indexing direction, the printing platform comprising a printing head configured for dispensing building material while the printing platform is moving in a printing direction one pass at a time, and layer by layer, a roller configured for leveling the dispensed building material one pass at a time, wherein the roller is rotatably mounted on a roller axle, and wherein the roller axle extends over all passes of the printing system and is stationary in the indexing direction, a scraper configured for scraping excess building material off the roller, and a trough configured for collecting the building material scraped off the roller.
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公开(公告)号:US20190337315A1
公开(公告)日:2019-11-07
申请号:US16514398
申请日:2019-07-17
申请人: STRATASYS LTD.
发明人: Eliahu M. Kritchman
IPC分类号: B41M1/18 , B33Y50/00 , G05B15/02 , B29C64/124 , B29C64/112 , B41M5/00 , B41M7/00 , B28B1/00 , B33Y10/00 , B29C64/386
摘要: Methods of printing a three-dimensional object, layer by layer are provided. Layers are formed by a bulk inner region which may be formed by depositing a transparent material, a white material, a colored material or a combination thereof, and a color outline which includes voxels formed by depositing a colored building material.
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公开(公告)号:US11179881B2
公开(公告)日:2021-11-23
申请号:US16858654
申请日:2020-04-26
申请人: STRATASYS LTD.
发明人: Guy Menchik , Hanan Gothait , Eliahu M. Kritchman
IPC分类号: B29C41/34 , B29C64/112 , B33Y30/00 , B33Y50/02 , B33Y40/00 , B41J2/175 , B29C64/40 , G01G17/06 , B29C64/393 , B29C64/336 , B29C64/386 , B29C64/20 , B29C64/35
摘要: A three-dimensional printing system to print three-dimensional objects and a method of printed are disclosed. The system includes a printing apparatus to print three-dimensional objects and a controller to receive data from a material supply source and to control said printing apparatus.
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公开(公告)号:US11104169B2
公开(公告)日:2021-08-31
申请号:US16514398
申请日:2019-07-17
申请人: STRATASYS LTD.
发明人: Eliahu M. Kritchman
IPC分类号: B41M1/18 , B28B1/00 , B33Y50/00 , B33Y10/00 , B41M7/00 , B41M5/00 , B29C64/112 , G05B15/02 , B29C64/386 , B29C64/124 , B33Y50/02
摘要: Methods of printing a three-dimensional object, layer by layer are provided. Layers are formed by a bulk inner region which may be formed by depositing a transparent material, a white material, a colored material or a combination thereof, and a color outline which includes voxels formed by depositing a colored building material.
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公开(公告)号:US10649438B2
公开(公告)日:2020-05-12
申请号:US15227049
申请日:2016-08-03
申请人: Stratasys Ltd.
发明人: Eliahu M. Kritchman
IPC分类号: B29C67/00 , G05B19/4099 , B29C64/112 , B29C64/00 , B29C64/386 , G06F30/20 , G05B19/418 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要: A method of three-dimensional fabrication of an object is disclosed. The method comprises: forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object, at least one layer of the plurality of layers being formed at a predetermined and different thickness selected so as to compensate for post-formation shrinkage of the layer along a vertical direction. In various exemplary embodiments of the invention spread of building material of one or more layers is diluted at least locally such as to maintain a predetermined thickness and a predetermined planar resolution for the layer.
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公开(公告)号:US10940616B2
公开(公告)日:2021-03-09
申请号:US16155211
申请日:2018-10-09
申请人: STRATASYS LTD.
IPC分类号: B29C64/106 , B29C41/02 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C48/92 , B29C41/48 , B29C41/52 , B29C64/112 , B29C64/245 , B33Y50/02 , B29C37/00 , B29C64/40 , B41M3/16 , B29L9/00 , B29C64/124 , B29C64/135 , B29C64/129 , B29C64/118
摘要: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.
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公开(公告)号:US10099406B2
公开(公告)日:2018-10-16
申请号:US15607499
申请日:2017-05-28
申请人: Stratasys Ltd.
IPC分类号: B29C41/02 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C41/48 , B29C41/52 , B29C64/106 , B29C64/112 , B29C64/40 , B29C64/245 , B29C47/92 , B33Y50/02 , B29C37/00 , B41M3/16 , B29L9/00 , B29C64/00 , B29C64/124 , B29C64/135 , B29C64/129 , B29C64/118
摘要: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.
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公开(公告)号:US09808994B2
公开(公告)日:2017-11-07
申请号:US14989799
申请日:2016-01-07
申请人: STRATASYS LTD.
CPC分类号: B29C64/386 , B29C64/106 , B29C64/112 , B29C64/35 , B33Y30/00 , B33Y50/02
摘要: System for controlling fabrication of three-dimensional objects, layer by layer are disclosed. The system includes a printing assembly having an irradiation unit and a printing head, the printing assembly is movable between a printing area and a service area. The system further includes a light sensor positioned at the service area to measure the output radiation power of the irradiation unit and a controller to receive information from the sensor and to automatically adjust the electrical power supplied to the irradiation unit.
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公开(公告)号:US20170259469A1
公开(公告)日:2017-09-14
申请号:US15607499
申请日:2017-05-28
申请人: Stratasys Ltd.
CPC分类号: B29C41/02 , B29C37/005 , B29C41/48 , B29C41/52 , B29C47/92 , B29C64/00 , B29C64/106 , B29C64/112 , B29C64/118 , B29C64/124 , B29C64/129 , B29C64/135 , B29C64/245 , B29C64/40 , B29C2947/92209 , B29C2947/92704 , B29L2009/00 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B41M3/16
摘要: A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture.
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公开(公告)号:US09724879B2
公开(公告)日:2017-08-08
申请号:US15393523
申请日:2016-12-29
申请人: Stratasys Ltd.
IPC分类号: B29C35/00 , B29C67/00 , G05B19/048 , B33Y30/00 , B33Y50/02
CPC分类号: B29C64/135 , B29C64/112 , B29C64/209 , B29C64/321 , B29C64/343 , B29C64/35 , B29C64/386 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02 , B33Y70/00 , G05B19/048 , G05B2219/49023 , G06F17/50
摘要: Apparatus for producing an object by sequentially forming thin layers of a construction material one on top of the other responsive to data defining the object, the apparatus comprising: a plurality of printing heads each having a surface formed with a plurality of output orifices and controllable to dispense the construction material through each orifice independently of the other orifices; a shuttle to which the printing heads are mounted; a support surface; and a controller adapted to control the shuttle to move back and forth over the support surface and as the shuttle moves to control the printing heads to dispense the construction material through each of their respective orifices responsive to the data to form a first layer on the support surface and thereafter, sequentially the other layers; wherein each printing head is dismountable from the shuttle and replaceable independently of the other printing heads.
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