公开(公告)号：WO2022192317A1

公开(公告)日：2022-09-15

申请号：PCT/US2022/019427

申请日：2022-03-09

Applicant: 3D SYSTEMS, INC.

Inventor： MOUSSA, Khalil

IPC: C07C69/734 ,  B33Y10/00

Abstract: Additives for three-dimensional build materials or inks are described herein which, in some embodiments, can impart flame retardant properties and/or structural enhancements to articles printed from the build materials. In some embodiments, such an additive comprises a compound of Formula (I) herein, wherein L and Z are ring substituents comprising at least one polymerizable point of unsaturation, and wherein R1 and R2 are independently selected from the group consisting of alkylene and alkenylene, and R3-R6 each represent one to four optional ring substituents, each one of the one to four ring substituents independently selected from the group consisting of alkyl, heteroalkyl, haloalkyl, halo, hydroxyl, alkoxy, amine, amide, and ether, and wherein n is an integer from 1 to 7.

公开(公告)号：WO2022016139A1

公开(公告)日：2022-01-20

申请号：PCT/US2021/042147

申请日：2021-07-19

Applicant: 3D SYSTEMS, INC.

Inventor： SOLORZANO, Ricardo ,  MCKNIGHT, Nicholas

IPC: B29C64/106 ,  B29C64/209 ,  B29C64/25 ,  B29C64/307 ,  B33Y30/00 ,  B33Y40/00

Abstract: Disclosed is a bioextruder assembly capable of "retro-fit" an existing three-dimensional (3D) printer such that it is capable of printing biomaterials. The bioextruder assembly may be modular, self-contained, and configured as "plug-and-play" unit. In some embodiments, the bioextruder assembly may be configured for use in zero-gravity environments such as space and configured to engage with existing 3D printers in space. In some embodiments the bioextruder assembly includes an extruder configured to extrude bio-materials stored in a syringe that is coupled to the extruder, and a converter. The converter may include an electromechanical coupling component that couples the converter to a three-dimensional printer system, and a motor configured to actuate the extrusion of bio-materials stored in the syringe based on signals received from the three-dimensional printing system via the electromechanical coupling component. In some embodiments, the converter may be configured to reversibly attach to the extruder via an attachment element.

公开(公告)号：WO2020252224A1

公开(公告)日：2020-12-17

申请号：PCT/US2020/037366

申请日：2020-06-12

Applicant: 3D SYSTEMS, INC.

Inventor： SHIR, Meisam ,  MOUSSA, Khalil

IPC: C08F210/06 ,  B29C64/00

Abstract: Polypropylene-based powders are provided for use in the production of various articles by one or more additive manufacturing techniques. As described further herein, the polypropylene-based powders can exhibit particle morphologies, particle size distributions, and/or compositional parameters advantageous for production of articles having enhanced mechanical properties. In one aspect, a powder composition comprises particles of copolymer or terpolymer having a spherical shape, spheroidal shape, or a mixture of spherical and spheroidal shapes, the copolymer or terpolymer comprising one or more alkene monomeric species and the balance polypropylene.

公开(公告)号：WO2020102328A1

公开(公告)日：2020-05-22

申请号：PCT/US2019/061148

申请日：2019-11-13

Applicant: 3D SYSTEMS, INC.

Inventor： BLAIN, Colin Leonard

IPC: B29C64/10 ,  B29C64/386 ,  B29C64/40 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y80/00 ,  B22F5/10 ,  B29D22/00 ,  B22F3/105

Abstract: A method of manufacturing a three-dimensional article (12) includes receiving a data file, analyzing the data file, and defining a support structure. The data file defines a hollow three-dimensional article to be formed from a build material. Analyzing the data file includes identifying an internal opening (32) that converges to an apex (36) along the sequence of layers. The internal opening is at least partly defined by an inside edge (72) of the three-dimensional article. A support structure (34) is attached to the edge and closes the internal opening. The support structure includes a structural sheet portion (76) and an interface web portion (78). The structure sheet portion defines a majority of an area of the support structure except for a boundary contour (80) between the structural sheet portion and the inside edge. The interface web portion closes the boundary contour and defines a weakness contour for removing the structural portion from the three-dimensional article.

公开(公告)号：WO2020014344A1

公开(公告)日：2020-01-16

申请号：PCT/US2019/041182

申请日：2019-07-10

Applicant: 3D SYSTEMS, INC.

Inventor： KOROL, Evgeny ,  HULL, Charles W.

IPC: B29C64/277 ,  B29C64/135 ,  B29C64/153 ,  B29C64/268 ,  B29C64/124 ,  B29C64/141 ,  B33Y10/00 ,  B33Y30/00

Abstract: A three dimensional printing system for manufacturing a three dimensional article includes a build platform (4), a light engine, and a controller. The build platform (4) is coupled to a vertical positioning apparatus. The light engine is configured to generate and scan a columnar array of light spots (24) across a build plane (10). The columnar array of light spots are arranged along a second axis. The light spots are scanned along a first axis. The build plane is laterally defined by mutually perpendicular X and Y axes. In the build plane, the first axis is parallel to the X-axis. The light engine is operated to scan the light spots (24) over the build plane (10), the scanning light spots image the build material along stripes (26) that are parallel to the X-axis and are separated from each other along the Y-axis leaving unimaged stripes (28) between the imaged stripes. This is repeated one or more times with the light spots shifted in Y in order to image the unimaged stripes. These steps are repeated until the three dimensional article is formed.

公开(公告)号：WO2020006260A1

公开(公告)日：2020-01-02

申请号：PCT/US2019/039548

申请日：2019-06-27

Applicant: 3D SYSTEMS, INC.

Inventor： COOPER, Guthrie ,  CLAY, John D.

IPC: B29C64/153 ,  B29C64/25 ,  B29C64/393 ,  B33Y50/02

Abstract: A three-dimensional printing system for solidifying a photocurable resin in a layer-by- layer manner at a build plane includes a scan module, a transparent plate, a sensor, and a controller. The scan module is configured to scan the light beam along two axes to address the build plane. The transparent plate is positioned in the optical path between the scan module and the build plane. The transparent plate has at least one reflective feature in the optical path. The sensor is mounted above the glass plate and is positioned to receive light reflected from the reflective feature. The controller is configured to operate the scan module to scan the light beam across the build plane, receive a signal from the sensor when the light beam impinges upon the reflective feature, and analyze the signal to verify a proper alignment of the light beam to the build plane.

公开(公告)号：WO2019191084A1

公开(公告)日：2019-10-03

申请号：PCT/US2019/024058

申请日：2019-03-26

Applicant: 3D SYSTEMS, INC.

Inventor： HILL, Rodney ,  SNYDER, Keaton, Jonathan Daniel

IPC: B29C64/124 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y40/00 ,  B29C64/307

Abstract: A three dimensional printing system for manufacturing a three dimensional article includes a print engine, a receptacle, a pump motor system, a removable conduit assembly, and a resin container. The receptacle includes an upper portion with an opening and a lower interface portion. The removable conduit assembly includes: a fluid inlet extending upwardly from the lower interface portion; a pump head removably coupled to the pump motor system; a fluid outlet for supplying resin to the print engine. The resin container includes an internal reservoir and a leading and trailing end relative to a direction of insertion of the resin container into the receptacle. The resin container includes a fluid outlet that extends downwardly from the leading end. Installation of the resin container includes passing the leading end through the opening and lowering and coupling the leading end to the lower interface portion.

公开(公告)号：WO2019094431A1

公开(公告)日：2019-05-16

申请号：PCT/US2018/059572

申请日：2018-11-07

Applicant: 3D SYSTEMS, INC.

Inventor： MOUSSA, Khalil

IPC: C09D11/101 ,  B33Y10/00 ,  B29C64/00

CPC classification number: C09D11/38 ,  B29C64/112 ,  B29C64/124 ,  B29K2033/12 ,  B29K2105/0032 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/037 ,  C09D11/101 ,  C09D11/107 ,  C09D11/328

Abstract: In one aspect, inks for use with a three-dimensional (3 D) printing system are described herein. In some embodiments, an ink described herein comprises up to 80 wt. % oligomeric curable material; up to 80 wt. % monomeric curable material; up to 10 wt. % photoinitiator; up to 1 wt. % non-curable absorber material; and up to 10 wt. % one or more additional components, based on the total weight of the ink, and wherein the total amount of the foregoing components is equal to 100 wt. %. Additionally, the photoinitiator is operable to initiate curing of the oligomeric curable material and/or the monomeric curable material when the photoinitiator is exposed to incident curing radiation having a peak wavelength λ. Moreover, the ink has a penetration depth (D p ), a critical energy (E c ), and a print through depth (D PT ) at the wavelength λ of less than or equal to 2 x D p .

公开(公告)号：WO2018222408A1

公开(公告)日：2018-12-06

申请号：PCT/US2018/033201

申请日：2018-05-17

Applicant: 3D SYSTEMS, INC.

Inventor： TANNER, Christopher

IPC: B29C64/124 ,  B29C64/357 ,  B29C64/245 ,  B29C64/223 ,  B29C64/00

Abstract: A three dimensional printing system (2) includes a vertical support (4), a support plate (10), a resin vessel (20), a carriage (40), and a support fixture (48). The support plate has a proximal end (12) affixed to the vertical support and extends along a first lateral axis to a distal end (14). The resin vessel is supported by the support plate and has a rear side (22) that is proximate to the proximal end of the support plate. A resin fluid outlet (30) is supported over the rear side of the resin vessel. The carriage is configured to be translated vertically along the vertical support. A pair of fixture receiving arms (46) extend from the carriage along the first lateral axis from a proximal to a distal end. The fixture receiving arms are spaced apart along a second lateral axis that is perpendicular to the first lateral axis. A support fixture (48) is supported by the two fixture receiving arms.

公开(公告)号：WO2013173733A1

公开(公告)日：2013-11-21

申请号：PCT/US2013/041620

申请日：2013-05-17

Applicant: 3D SYSTEMS, INC.

Inventor： JOHNSON, Martin, Alan ,  MANNERS, Chris, Roberts ,  EDWARDS, Andrew

IPC: B29C67/00

CPC classification number: B29C37/0003 ,  B29C64/106 ,  B29C64/124 ,  B29C64/20 ,  B29C64/245 ,  B29C64/40 ,  B29K2029/04 ,  B29K2033/04 ,  B33Y10/00 ,  C08G73/0233 ,  C08L29/04 ,  C08L79/02 ,  C09J129/04 ,  C09J129/10 ,  C09J133/08 ,  C09J177/00 ,  C09J179/00 ,  C09J179/02

Abstract: There is provided a support structure for use with 3D printing of objects from computer-aided designs. The support structures include fine points that contact the down -facing surfaces of the 3D object being printed in order to adequately support the 3D object while also being adapted for easy removal after the 3D print process is complete. The fine points are possible by controlling the operation of the dispenser to provide a precise amount of material in a precise location. The dispenser jumps from a first fine point to a second fine point by retracting the print material after the first fine point is printed and then moving the dispenser vertically relative to the first fine point before, the dispenser is moved horizontally to the second fine point.

Abstract translation: 提供了用于从计算机辅助设计的3D打印物体的支撑结构。 支撑结构包括接触被打印的3D对象的向下表面以便充分支撑3D对象的精细点，同时还适于在3D打印过程完成之后容易地移除。 通过控制分配器的操作以在精确位置提供精确量的材料，细微点是可能的。 分配器通过在印刷第一细微点之后缩回印刷材料，然后在分配器水平移动到第二细点之前相对于第一细微点垂直移动分配器，从第一细微点跳到第二细点。