公开(公告)号：US12071566B2

公开(公告)日：2024-08-27

申请号：US17694786

申请日：2022-03-15

Applicant: Stratasys, Inc.

Inventor： Tai Yeon Lee ,  Mike Scianna ,  Paulus Steeman ,  Marco Driessen ,  Johan Jansen ,  Sainath Vaidya

IPC: C08F2/46 ,  B22C9/04 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C08F2/50 ,  C08G59/22 ,  C08G59/24 ,  C08G59/68 ,  C08G61/04 ,  C08G65/18 ,  C09D7/63 ,  C09D163/00 ,  B29K105/00

CPC classification number: C09D7/63 ,  B22C9/043 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C08F2/50 ,  C08G59/22 ,  C08G59/24 ,  C08G59/245 ,  C08G59/687 ,  C08G65/18 ,  C09D163/00 ,  B29K2105/0005

Abstract: Radiation curable compositions for additive fabrication are described and claimed. Such compositions are particularly suited for investment casting applications, and include a cationically polymerizable component, a radically polymerizable component, a certain type of prescribed antimony-free, sulfonium salt-based cationic photoinitiator, and a free-radical photoinitiator. In other embodiments, the composition may also include a photosensitizer and/or a UV/absorber. Also described and claimed is a method for using a liquid radiation curable resin for additive fabrication with a certain type of prescribed antimony-free, sulfonium salt-based cationic photoinitiator and a certain type of prescribed photosensitizer in an investment casting process.

公开(公告)号：US12049038B2

公开(公告)日：2024-07-30

申请号：US18308886

申请日：2023-04-28

Applicant: Stratasys, Inc.

Inventor： Peter Joseph Schmehl ,  Aljosa Kemperle ,  Stewart Schmehl

IPC: B29C67/00 ,  B29C35/08 ,  B29C48/02 ,  B29C48/25 ,  B29C48/285 ,  B29C48/80 ,  B29C48/92 ,  B29C64/112 ,  B29C64/118 ,  B29C64/295 ,  B29C64/30 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29L9/00

CPC classification number: B29C64/112 ,  B29C48/02 ,  B29C48/266 ,  B29C48/2888 ,  B29C48/832 ,  B29C48/92 ,  B29C64/118 ,  B29C64/295 ,  B29C64/30 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29L2009/00

Abstract: An extruder or other similar tool head of a three-dimensional printer is slidably mounted along a feedpath of build material so that the extruder can move into and out of contact with a build surface according to whether build material is being extruded. The extruder may be spring-biased against the forward feedpath so that the extruder remains above the build surface in the absence of applied forces, and then moves downward into a position for extrusion when build material is fed into the extruder. In another aspect, modular tool heads are disclosed that can be automatically coupled to and removed from the three-dimensional printer by a suitable robotics system. A tool crib may be provided to store multiple tool heads while not in use.

公开(公告)号：US12019425B2

公开(公告)日：2024-06-25

申请号：US18227243

申请日：2023-07-27

Applicant: Stratasys, Inc.

Inventor： Joel Ong

IPC: G05B19/4093 ,  B29C64/393 ,  B33Y50/02 ,  G06T7/11 ,  G06T7/13 ,  G06T7/62 ,  G06T7/73 ,  G06T19/20 ,  B29C64/135

CPC classification number: G05B19/40931 ,  B29C64/393 ,  B33Y50/02 ,  G06T7/11 ,  G06T7/13 ,  G06T7/62 ,  G06T7/75 ,  G06T19/20 ,  B29C64/135 ,  G05B2219/49023 ,  G06T2219/012 ,  G06T2219/2008

Abstract: A method for generating print images for additive manufacturing includes: accessing a part model; accessing a set of dimensional tolerances for the part model; and segmenting the part model into a set of model layers. The method also includes, and, for each model layer: detecting an edge in the model layer; assigning a dimensional tolerance to the edge; defining an outer exposure shell inset from the edge by an erosion distance inversely proportional to a width of the dimensional tolerance; defining an inner exposure shell inset from the outer exposure shell and scheduled for exposure separately from the outer exposure shell; defining an a outer exposure energy proportional to the width of the dimensional tolerance and assigned to the outer exposure shell; and defining an inner exposure energy greater than the outer exposure energy and assigned to the inner exposure shell.

公开(公告)号：US20240191087A1

公开(公告)日：2024-06-13

申请号：US18583995

申请日：2024-02-22

Applicant: Stratasys, Inc.

Inventor： William R. Priedeman, Jr.

IPC: C09D11/107 ,  B29C64/118 ,  B29C64/40 ,  B29K33/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/54

CPC classification number: C09D11/107 ,  B29C64/40 ,  B33Y70/00 ,  C09D11/54 ,  B29C64/118 ,  B29K2033/12 ,  B29K2105/0085 ,  B29K2995/0062 ,  B33Y10/00

Abstract: A sulfonated water-dispersible thermoplastic copolymer material for use as a support material in an additive manufacturing process is made by a method comprising providing a selected thermoplastic copolymer having an acid or an anhydride group; esterifying the acid group of the selected thermoplastic copolymer with a hydroxyl-functionalized sulfonate salt, or amidizing the acid group of the selected thermoplastic copolymer with an amine sulfonate salt, or imidizing the anhydride group of the selected thermoplastic copolymer with an amine sulfonate salt. The esterification, the amidization or the imidization results in a sulfonated water thermoplastic dispersible copolymer having a glass transition temperature suitable to provide an effective support during the additive manufacturing process and wherein the sulfonated water-dispersible thermoplastic copolymer will disperse in tap water in less than 1 hour.

公开(公告)号：US11911958B2

公开(公告)日：2024-02-27

申请号：US15587292

申请日：2017-05-04

Applicant: Stratasys, Inc.

Inventor： Armando Armijo ,  Riley Reese

IPC: B29C64/153 ,  B29C64/20 ,  B29C35/02 ,  B33Y10/00 ,  B33Y30/00 ,  B29B13/02 ,  B29B13/08 ,  B29C35/08 ,  B29C64/106 ,  B29C35/04

CPC classification number: B29C64/153 ,  B29B13/02 ,  B29B13/08 ,  B29C64/106 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B29C35/0261 ,  B29C2035/0283 ,  B29C2035/046 ,  B29C2035/0822 ,  B29C2035/0838 ,  B29C2035/0855 ,  B29C2035/0872 ,  B29C2035/0877

Abstract: A polymeric material used for 3D printing is preheated, at a first zone in a 3D printer, to a temperature in excess of its glass transition temperature prior to being melted, at a second zone, for incorporation into a build object. This enables the polymer to be processed more rapidly than in the prior art.

公开(公告)号：US20240009924A1

公开(公告)日：2024-01-11

申请号：US17859446

申请日：2022-07-07

Applicant: Stratasys, Inc.

Inventor： Patrick Anderson ,  Dang Yang ,  Ross Michalkiewicz

IPC: B29C64/255 ,  B33Y30/00 ,  B29C64/321 ,  B33Y40/00 ,  B65H75/18 ,  B65H57/18

CPC classification number: B29C64/255 ,  B33Y30/00 ,  B29C64/321 ,  B33Y40/00 ,  B65H75/182 ,  B65H57/18 ,  B29K2101/12

Abstract: A consumable assembly for a 3D printer includes a spool carrying wound filament. The spool is configured to be installed into a spool cabinet to maintain the filament in a controlled environment. A filament key fob that carries a spool chip programmed with identification data for the consumable assembly is tethered to the spool. The filament key fob is configured to be received in a dock of the 3D printer outside of a controlled environment of a chamber of the spool cabinet while remaining tethered to the spool installed in the chamber of the spool cabinet.

公开(公告)号：US20240009920A1

公开(公告)日：2024-01-11

申请号：US17859465

申请日：2022-07-07

Applicant: Stratasys, Inc.

Inventor： Patrick Anderson ,  Dang Yang ,  Ross Michalkiewicz

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/255 ,  B29C64/25 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00

CPC classification number: B29C64/118 ,  B29C64/209 ,  B29C64/255 ,  B29C64/25 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00

Abstract: A consumable assembly for a 3D printer includes a spool carrying wound filament. A 3D printer includes a print head configured to receive filament material and a spool cabinet configured to have a filament spool positioned therein to provide a controlled environment for filament on the filament spool. A dock of the 3D printer is located outside of a chamber of the spool cabinet and is configured to receive a filament key fob, including a spool chip, of the filament spool to maintain the spool chip outside of the controlled environment of the chamber.

公开(公告)号：US20240004365A1

公开(公告)日：2024-01-04

申请号：US18227243

申请日：2023-07-27

Applicant: Stratasys, Inc.

Inventor： Joel Ong

IPC: G05B19/4093 ,  G06T19/20 ,  G06T7/11 ,  G06T7/13 ,  G06T7/73 ,  B33Y50/02 ,  B29C64/393 ,  G06T7/62

CPC classification number: G05B19/40931 ,  G06T19/20 ,  G06T7/11 ,  G06T7/13 ,  G06T7/75 ,  B33Y50/02 ,  B29C64/393 ,  G06T7/62 ,  B29C64/135

Abstract: A method for generating print images for additive manufacturing includes: accessing a part model; accessing a set of dimensional tolerances for the part model; and segmenting the part model into a set of model layers. The method also includes, and, for each model layer: detecting an edge in the model layer; assigning a dimensional tolerance to the edge; defining an outer exposure shell inset from the edge by an erosion distance inversely proportional to a width of the dimensional tolerance; defining an inner exposure shell inset from the outer exposure shell and scheduled for exposure separately from the outer exposure shell; defining an a outer exposure energy proportional to the width of the dimensional tolerance and assigned to the outer exposure shell; and defining an inner exposure energy greater than the outer exposure energy and assigned to the inner exposure shell.

公开(公告)号：US20230234296A1

公开(公告)日：2023-07-27

申请号：US18101008

申请日：2023-01-24

Applicant: Stratasys, Inc.

Inventor： Joel Ong ,  Christopher Prucha

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/124

Abstract: An additive manufacturing system configured to: during a first build cycle of an additive manufacturing process for manufacturing a first layer of a build, sampling a first set of sensor data streams via the sensor suite; calculate a first likelihood of failure of the build based on the first set of sensor data streams; in response to calculating the first likelihood of failure within a first likelihood range, flag the build to indicate the first likelihood of failure; and in response to calculating the first likelihood of failure within a second likelihood range greater than the first likelihood range, pause the additive manufacturing process, and notify an operator of the additive manufacturing system of the first likelihood of failure.

公开(公告)号：US20230229825A1

公开(公告)日：2023-07-20

申请号：US18098586

申请日：2023-01-18

Applicant: Stratasys, Inc.

Inventor： Joel Ong ,  Christopher Prucha ,  Marshall Ling ,  Elton Cheung

IPC: G06F30/17

CPC classification number: G06F30/17 ,  G06F2113/10

Abstract: A method includes: accessing a part model comprising a three-dimensional representation of a part; accessing a material profile relating exposure energy and three-dimensional polymerization geometry of a material selected for the part; segmenting the part model into a set of model layers; detecting a first upward-facing surface in the part model; defining a first model volume in a first model layer, adjacent the first upward-facing surface, and fully contained within the part model; based on the material profile, calculating a first exposure energy predicted to yield a first three-dimensional polymerization geometry approximating a first contour of the first upward-facing surface when projected onto the material during a build; populating a first print image with the first exposure energy in a first image area corresponding to the first model volume in the first model layer; and storing the first print image in a print file for the part.