公开(公告)号：US20220097291A1

公开(公告)日：2022-03-31

申请号：US17548649

申请日：2021-12-13

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Avraham LEVY ,  Eduardo NAPADENSKY

IPC分类号： B29C64/112 ,  B29C64/393 ,  B29C64/135

摘要： A method of layerwise solid freeform fabrication is disclosed. The method comprises, for each of at least a few of the layers, dispensing and hardening at least a first modeling material and a second modeling material to form a core region and one or more envelope regions at least partially surrounding the core region. In some embodiments, the ratio between the elastic moduli of adjacent regions, when hardened, is from about 1 to about 20.

公开(公告)号：US20210283828A1

公开(公告)日：2021-09-16

申请号：US17336437

申请日：2021-06-02

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Ira YUDOVIN-FARBER ,  Efraim DVASH

IPC分类号： B29C64/112 ,  C09D11/52 ,  H05K3/12 ,  H05K3/46 ,  B33Y10/00 ,  C09D11/30 ,  B33Y50/02 ,  B33Y70/00 ,  C09D133/14 ,  C09D133/26 ,  H05K1/18 ,  H05K3/30

摘要： A method of fabricating a cross-layer pattern in a layered object is disclosed. The method is executed by an additive manufacturing system and comprises: dispensing a patterning material onto a receiving medium to form a first pattern element; dispensing a first layer of modeling material onto the first pattern element while forming a first open cavity exposing at least a portion of the first pattern element beneath the first layer; and dispensing patterning material onto the exposed portion of the first pattern element and the first layer to form a second pattern element contacting the first pattern element.

公开(公告)号：US20210260815A1

公开(公告)日：2021-08-26

申请号：US17318560

申请日：2021-05-12

申请人： STRATASYS LTD.

发明人： Daniel DIKOVSKY ,  Eduardo NAPADENSKY ,  Shai HIRSCH ,  Evgeni LEVIN ,  Yoav BRESSLER

IPC分类号： B29C64/112 ,  B29C64/40 ,  B33Y10/00 ,  G06F30/17 ,  B29C64/188 ,  B29C33/44 ,  B29C64/393

摘要： A method of printing a three-dimensional (3D) object and a support construction for the 3D object includes depositing a model material, layer-by-layer, on a fabrication platform, to print a first portion of the 3D object, and depositing a support material, layer-by-layer on the fabrication platform, to print the support construction, wherein, in a predetermined number of the deposited layers, the model material and the support material are deposited such that a gap is formed between a surface of the first portion of the 3D object and a surface of the support construction.

公开(公告)号：US20180263783A1

公开(公告)日：2018-09-20

申请号：US15984363

申请日：2018-05-20

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Stanislav SHTILERMAN

IPC分类号： A61F2/30 ,  B29C64/112 ,  G06F19/00 ,  G06F17/50 ,  B33Y50/00 ,  A61C13/00

CPC分类号： A61F2/30942 ,  A61B5/055 ,  A61C13/0019 ,  A61F2002/30948 ,  A61F2002/30962 ,  A61F2002/30985 ,  B29C64/112 ,  B29L2031/7532 ,  B33Y50/00 ,  B33Y70/00 ,  G06F17/50 ,  G06F19/00

摘要： A method for physically reconstructing a body part using multi-material additive manufacturing includes receiving image data of the body part in the form of arrays of voxels, each array of voxels representing image data pertaining to cross-section of the body part, translating the image data in the arrays of voxels to printable bitmap images representing combinations of modeling materials for reconstructing the body part, and dispensing the combinations of modeling materials responsive to the bitmap images in a layerwise manner.

公开(公告)号：US20180194070A1

公开(公告)日：2018-07-12

申请号：US15751175

申请日：2016-08-08

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Shai HIRSCH

IPC分类号： B29C64/40 ,  B29C64/209 ,  B29C64/386

CPC分类号： B29C64/40 ,  B29C64/209 ,  B29C64/386

摘要： A system includes a three-dimensional (3D) printer, a processor configured to compute object data for printing the object and a controller. The object data is defined in a layer-wise manner and the object data of one layer defines selective dispensing to different distances. The controller is configured to control the dispensing of the building material in the layer-wise manner based on the object data. The printing includes a dispensing unit for selectively dispensing building material in a layer-wise manner for building the object and a building tray for supporting the dispensed material for building the object. The printing further includes use of a prefabricated support structure, and printing at least a portion of the object over the prefabricated support structure.

公开(公告)号：US20240009919A1

公开(公告)日：2024-01-11

申请号：US18368583

申请日：2023-09-15

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Amit FEFFER

IPC分类号： B29C64/112 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y80/00

CPC分类号： B29C64/112 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y80/00 ,  A61F2210/0076 ,  A61F2210/0085 ,  A61F2240/002 ,  A61F2250/0056 ,  A61F2250/0057

摘要： A tubular structure fabricated by additive manufacturing from non-biological building material formulations, and featuring an elongated core, a shell encapsulating the core and an intermediate shell between the core and the shell. Each of the core, the shell and the intermediate shell is made of a different material or a different combination of materials. Both the core and the intermediate shell are sacrificial. Additive manufacturing of the tubular structure is usable for fabricating an object featuring properties of a blood vessel.

公开(公告)号：US20230277322A1

公开(公告)日：2023-09-07

申请号：US18195441

申请日：2023-05-10

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Blake Zachary COURTER ,  Ben KLEIN

IPC分类号： A61F2/30 ,  B29C64/112 ,  B29C64/393 ,  B29C64/336

CPC分类号： A61F2/3094 ,  B29C64/112 ,  B29C64/393 ,  B29C64/336 ,  B33Y10/00

摘要： A method of additive manufacturing an object featuring properties of a hard bodily tissue, comprises: dispensing and solidifying a plurality of non-biological material formulations to sequentially form a plurality of hardened layers in a configured pattern corresponding to a shape of the object. The method forms voxel elements containing different material formulations at interlaced locations to provide a three-dimensional textured region spanning over the portion. The material formulations and the interlaced locations are selected such that the textured region exhibits, once hardened, a stress variation of at most ±20% over a strain range of from about 0.1% to about 0.3%.

公开(公告)号：US20210060850A1

公开(公告)日：2021-03-04

申请号：US16957819

申请日：2018-12-17

申请人： Stratasys Ltd.

发明人： Guy MENCHIK ,  Yaniv SHITRIT ,  Boris BELOCON ,  Yehoshua SHEINMAN ,  Daniel DIKOVSKY

IPC分类号： B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y50/02 ,  B29C64/245 ,  B29C64/393

摘要： A method of 3D printing to achieve a desired surface quality on at least one surface of a 3D printed object comprising selecting a base surface having the desired surface quality; and printing the 3D printed object on the base surface, so that the desired surface quality is imparted to one surface of the 3D printed object during printing. The surface quality may be glassiness, roughness, smoothness and texture in general. Objects may thus be manufactured in which electronic components are integrated in or under a glass-like surface.

公开(公告)号：US20200231803A1

公开(公告)日：2020-07-23

申请号：US16634173

申请日：2018-07-27

申请人： Stratasys Ltd.

发明人： Mazi AMIEL-LEVY ,  Shiran LUPO ,  TaI ELY ,  Daniel DIKOVSKY

IPC分类号： C08L71/02 ,  C08K3/36 ,  B29C64/106 ,  B29C64/393

摘要： Modeling material formulations and formulation systems usable in additive manufacturing of a three-dimensional object, featuring, when hardened, a Shore A hardness lower than 10 and/or a Shore 00 hardness lower than 40, are provided. Additive manufacturing processes utilizing these formulations and formulation systems, and three-dimensional objects obtainable thereby, are also provided.

公开(公告)号：US20200171739A1

公开(公告)日：2020-06-04

申请号：US16634171

申请日：2018-07-27

申请人： Stratasys Ltd.

发明人： Daniel DIKOVSKY ,  Boris BELOCON ,  Amit FEFFER ,  Gal BEGUN ,  Yoav BRESSLER

IPC分类号： B29C64/112 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y50/00 ,  B29C64/35 ,  B29C64/386 ,  B29C64/40 ,  B33Y40/20

摘要： Method of additive manufacturing of a three-dimensional object employing building material formulations that provide, upon exposure to a curing condition, liquid or liquid-like material, and three-dimensional objects obtainable thereby are provided. The methods are usable for fabricating objects featuring one or more hollow structures.