公开(公告)号：WO2020194318A1

公开(公告)日：2020-10-01

申请号：PCT/IL2020/050379

申请日：2020-03-29

Applicant: STRATASYS LTD.

Inventor： BRESSLER, Yoav ,  DIKOVSKY, Daniel ,  RUMBAK, Mayan ,  LIBINSON, Alexander

IPC: B29C64/112 ,  B33Y80/00 ,  B29C64/364

Abstract: An additive manufacturing method for printing an object includes receiving three-dimensional printing data corresponding to the object, defining an internal region of the object to be formed with a structured air pocket (100, 101, 102) and printing the object with an additive manufacturing system. The object includes an internal region formed with a structured air pocket (100, 101, 102).

公开(公告)号：WO2021124325A1

公开(公告)日：2021-06-24

申请号：PCT/IL2020/051292

申请日：2020-12-15

Applicant: STRATASYS LTD.

Inventor： LIBINSON, Alexander

IPC: B29C64/35 ,  B29C64/357 ,  B29C64/364 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A waste management system for an AM device (101) includes a waste container (350), an air cleaning device (200) installed within an enclosure of the AM device (101), a first conduit (210) and at least one second conduit (332). The air cleaning device condense vapors formed within an enclosure of the AM device during operation of the AM device. The first conduit (210) directs the condensed vapors in a liquid state from the air cleaning device (200) to the waste container (350) and the at least one second conduit (332) directs waste accumulated during operation of the AM device to the waste container (350). The waste container (350) stores waste accumulated by the AM device (101) during operation of the AM device (101).

公开(公告)号：WO2020141510A1

公开(公告)日：2020-07-09

申请号：PCT/IL2019/051430

申请日：2019-12-30

Applicant: STRATASYS LTD.

Inventor： LIBINSON, Alexander

IPC: B33Y30/00 ,  B41J2/14 ,  B29C64/209 ,  B29C64/112

Abstract: A printing head for inkjet printing comprises: a manifold having a channel for holding material formulation therein; and an array of controllable nozzles fluidly connected to the channel for dispensing the material formulation by inkjet technology. In an embodiment, the array of nozzles is characterized by a pitch that varies along the array. In an embodiment, the nozzles are arranged over a curved line engaging a horizontal plane.

公开(公告)号：WO2022079711A1

公开(公告)日：2022-04-21

申请号：PCT/IL2021/051213

申请日：2021-10-11

Applicant: STRATASYS LTD.

Inventor： LIBINSON, Alexander ,  KRASNOPOLSKY, Vitali ,  FRID, Yuval ,  DEKEL, Karin ,  SILBERT, Shoval

IPC: B29C64/112 ,  B29C64/364 ,  B29C64/371 ,  B29C64/393 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/00 ,  B22F12/00

Abstract: A method of printing a three-dimensional object (90) including: providing a 3D inkjet printing system including: a printing chamber (162) accommodating a printing unit (120) having an inkjet printing head and a curing subunit (124), and a supply unit (130) including a modeling material and a support material; and printing the 3D object (90) in multiple consecutive layers according to a predefined printing sequence, wherein for at least one of the multiple consecutive layers the predefined printing sequence for the same respective layer includes depositing and curing the modeling material and the support material separately from each other either in time or in space. Some embodiments may include controlling a concentration of oxygen in the printing chamber (162) to be in a predefined oxygen concentration range. Some embodiments may include controlling a temperature in the printing chamber (162) to be in a predefined temperature range.

公开(公告)号：WO2013038413A2

公开(公告)日：2013-03-21

申请号：PCT/IL2012/050367

申请日：2012-09-13

Applicant: STRATASYS LTD.

Inventor： LIBINSON, Alexander

IPC: B05D1/04

CPC classification number: B41J2/04588 ,  B29C64/112 ,  B29C67/0059 ,  B41J2/04508 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04591

Abstract: A printing method includes controlling timing parameters for application of electrical pulses to a piezoelectric nozzle of an inkjet printing head so as to dispense droplets of a material from the nozzle. The timing parameters are controlled to introduce gas bubbles into the droplets of material so as to reduce the density of the material to a selected density value that is less than a natural density of the material.

Abstract translation: 打印方法包括控制用于将电脉冲施加到喷墨打印头的压电喷嘴的定时参数，以便从喷嘴分配材料的液滴。 控制时间参数以将气泡引入材料液滴中，以便将材料的密度降低至小于材料的自然密度的选定密度值。

公开(公告)号：WO2020141524A1

公开(公告)日：2020-07-09

申请号：PCT/IL2019/051445

申请日：2019-12-31

Applicant: STRATASYS LTD.

Inventor： LIBINSON, Alexander

IPC: B29C64/112 ,  B29C64/165 ,  B29C64/209 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00

Abstract: A method of printing comprises: detecting a defective nozzle (42a) in a first array of nozzles (122a); disabling a nozzle (42b) in a second array of nozzles (122b); dispensing a first material formulation from nozzles of the first array (122a), other than the defective nozzle (42b); and dispensing a second material formulation from nozzles of the second array (122b), other than the disabled nozzle (42b).

公开(公告)号：WO2020003301A1

公开(公告)日：2020-01-02

申请号：PCT/IL2019/050685

申请日：2019-06-19

Applicant: STRATASYS LTD.

Inventor： SOKULER, Mordechay ,  LIBINSON, Alexander ,  RUBIN, Shmuel

IPC: B29C64/112 ,  B29C64/209 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/295

Abstract: A method of additive manufacturing of a three-dimensional object, comprises: sequentially dispensing and solidifying layers to form on a surface a sacrificial structure. In embodiments the sacrificial structure comprises a bulk volume and heating cells embedded in the bulk volume, where the heating cells release more heat than the bulk volume upon the solidification of the layers. In embodiments, the sacrificial structure comprises pinning structures embedded in the bulk volume. The method also comprises sequentially dispensing and solidifying layers to form the three-dimensional object on a portion of the sacrificial structure.

公开(公告)号：WO2017009830A1

公开(公告)日：2017-01-19

申请号：PCT/IL2016/050751

申请日：2016-07-13

Applicant: STRATASYS LTD.

Inventor： CARLSON, Andrew James ,  PETERSON, Nathaniel Michael ,  LIBINSON, Alexander ,  LIVINGSTON, Adam Joseph ,  BEAVER, Scott Wayne

IPC: B29C67/00 ,  B41J2/165 ,  B41J29/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00

CPC classification number: B33Y50/02 ,  B29C64/106 ,  B29C64/112 ,  B29C64/20 ,  B29C64/35 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B41J2/16538 ,  B41J2/16544 ,  B41J2/16579 ,  B41J2/16588 ,  B41J2/175

Abstract: A method of providing nozzle calibration parameters for a 3D printer (114) comprises: printing an arc pattern, printing an X-Y align pattern, and printing a head calibration pattern, measuring actual positions of drops, calculating deviations of said measured actual positions from expected positions, and calculating calibration parameters to correct for the deviations. Indicator drops may be used to allow built-in image recognition to find the calibration drops, and a cam system is provided to guide nozzle wipers. An apparatus to clean the printing head nozzles is also disclosed.

Abstract translation: 一种为3D打印机（114）提供喷嘴校准参数的方法包括：打印弧形图案，打印XY对齐图案，以及打印头部校准图案，测量滴液的实际位置，计算所述测量的实际位置与预期位置的偏差 ，并计算校准参数以校正偏差。 可以使用指示剂滴来允许内置图像识别来找到校准液滴，并且提供凸轮系统以引导喷嘴擦拭器。 还公开了一种清洁打印头喷嘴的设备。

公开(公告)号：WO2016009426A1

公开(公告)日：2016-01-21

申请号：PCT/IL2015/050722

申请日：2015-07-13

Applicant: STRATASYS LTD.

Inventor： MENCHIK, Guy ,  CARLSON, Andrew James ,  HEDLUND, Jonathan Bennhard ,  CAMPION, Kevin Ready ,  SIMON, Robert Earl ,  PETERSON, Nathaniel Michael ,  BEAVER, Scott Wayne ,  LEVIN, Evgeni ,  LIBINSON, Alexander ,  BRESSLER, Yoav

IPC: B29C67/00 ,  B41J2/00

CPC classification number: B33Y10/00 ,  B29C64/112 ,  B29C64/20 ,  B29C64/386 ,  B33Y30/00

Abstract: A system for three-dimensional printing is disclosed. The system comprises: a rotary tray configured to rotate about a vertical axis; a printing head, each having a plurality of separated nozzles; and a controller configured for controlling the inkjet printing head to dispense, during the rotation, droplets of building material in layers, such as to print a three-dimensional object on the tray.

Abstract translation: 公开了一种用于三维打印的系统。 该系统包括：配置成围绕垂直轴线旋转的旋转托盘; 打印头，每个具有多个分离的喷嘴; 以及控制器，其被配置为控制喷墨打印头，以在旋转期间分配建筑材料的液滴中的层，例如在托盘上打印三维物体。