公开(公告)号：US11498280B2

公开(公告)日：2022-11-15

申请号：US17066372

申请日：2020-10-08

Applicant: Stratasys, Inc.

Inventor： Joel Ong ,  Christopher Prucha ,  Stephanie Benight ,  Bill Buel

IPC: B29C64/393 ,  B29C64/295 ,  B29C64/364 ,  B29C64/135 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/255 ,  B29C64/124 ,  B29C64/232 ,  B29C64/129

Abstract: A method for additive manufacturing includes: at a build tray arranged over a build window and containing a resin reservoir of a resin, heating the resin reservoir toward a target bulk resin temperature less than a heat deflection temperature of the resin in a photocured state; at a resin interface between a surface of the build window and the resin reservoir, heating an interface layer of the resin reservoir toward a target reaction temperature; and, in response to the resin reservoir exhibiting a first temperature proximal the target bulk resin temperature and to the interface layer exhibiting a second temperature proximal the target reaction temperature: at the resin interface, selectively photocuring a first volume of the resin to form a first layer of a build adhered to a build platform; and retracting the build platform away from the build window.

公开(公告)号：US11498279B2

公开(公告)日：2022-11-15

申请号：US17066249

申请日：2020-10-08

Applicant: Stratasys, Inc.

Inventor： Joel Ong ,  Christopher Prucha ,  Stephanie Benight ,  Bill Buel

IPC: B29C64/124 ,  B29C64/295 ,  B29C64/364 ,  B29C64/393 ,  B29C64/135 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/255 ,  B29C64/232 ,  B29C64/129

Abstract: A method for additive manufacturing includes: at a build tray arranged over a build window and containing a resin reservoir of a resin, heating the resin reservoir toward a target bulk resin temperature less than a heat deflection temperature of the resin in a photocured state; at a resin interface between a surface of the build window and the resin reservoir, heating an interface layer of the resin reservoir toward a target reaction temperature; and, in response to the resin reservoir exhibiting a first temperature proximal the target bulk resin temperature and to the interface layer exhibiting a second temperature proximal the target reaction temperature: at the resin interface, selectively photocuring a first volume of the resin to form a first layer of a build adhered to a build platform; and retracting the build platform away from the build window.

公开(公告)号：US11491723B2

公开(公告)日：2022-11-08

申请号：US16942292

申请日：2020-07-29

Applicant: STRATASYS, INC.

Inventor： Caroline Jo Markman ,  Timothy Hjelsand ,  Kevin C. Johnson

IPC: B29C64/118 ,  B33Y40/00 ,  B65H49/08 ,  B65H55/02 ,  B65H55/04 ,  B65H57/12 ,  B65H57/18 ,  B65D63/10 ,  B29C64/321 ,  B29C64/259 ,  B33Y10/00

Abstract: A consumable assembly for supplying filament to a 3D printer includes a spool-less filament coil, a payout tube, and a compressive band. The coil of filament is wound in a configuration having a generally cylindrical outer perimeter and an open interior; the coil has a payout hole extending from an inner layer of the coil to an outer layer of the coil and includes a filament strand configured to be withdrawn through the payout hole in response to a pull force, to thereby withdraw filament from the interior of the coil. The payout tube is disposed in the payout hole and provides a filament port. A compressive band is disposed over the outer layer and is configured to exert a compressive radial force on the coil so that the coil maintains its cylindrical shape without deformation, and the filament strand may be drawn through the filament outlet free of kinks, twists or tangles.

公开(公告)号：US11485129B2

公开(公告)日：2022-11-01

申请号：US16548271

申请日：2019-08-22

Applicant: Stratasys, Inc.

Inventor： Brent Jorgenson ,  Michael D. Bosveld ,  Logan R. Kiene ,  Jerome W. Goetzke ,  Benjamin L. Braton ,  David Mulcrone

IPC: B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/40 ,  G01B13/03 ,  B29C64/209 ,  B29C64/364 ,  B29C64/118

Abstract: A probe for an additive manufacturing system includes a probe body having a first air port therethrough between an inlet and an outlet, and a location sensing probe extending from the probe body. The location sensing probe includes a probe end and a probe bar, the probe bar coupled between the probe body and the probe end, and a channel surrounding the probe bar, the channel having an inner tube having an inlet proximate the probe body and an outlet proximate the probe end. A method of determining a position of an item being printed in an additive manufacturing system, includes probing the position with a location sensing probe having a resolution finer than a print resolution of the print head.

公开(公告)号：US20220176636A1

公开(公告)日：2022-06-09

申请号：US17543015

申请日：2021-12-06

Applicant: Stratasys, Inc.

Inventor： J. Samuel Batchelder

IPC: B29C64/386 ,  B33Y10/00 ,  B29C64/129 ,  B33Y50/00 ,  G01N21/21

Abstract: A method for 3D printing a part in a layer-wise manner includes providing a pool of polymerizable liquid in a vessel over a build window and positioning a downward-facing build platform in the pool, thereby defining a build region above the build window. The method includes selectively curing a volume of polymerizable liquid in the build region by imparting electromagnetic radiation through the build window to form a printed layer of the part adhered to the build platform and scanning at least a portion of the build window with monochromatic, polarized light along a plane of incidence. The method includes measuring a change in intensity and polarity of the light to obtain information about the printed layer. The method includes raising the build platform to a height of a next layer to be printed and modifying the electromagnetic energy imparted into the next layer based upon the obtained information to print a next layer. The imparting, scanning, measuring, raising and modifying steps are repeated until the part is printed.

公开(公告)号：US11345781B2

公开(公告)日：2022-05-31

申请号：US16520025

申请日：2019-07-23

Applicant: Stratasys, Inc.

Inventor： Andrew Hanson ,  Neil R. Granlund

IPC: B29C64/118 ,  B29C64/209 ,  B29K71/00 ,  B33Y10/00 ,  B33Y70/00 ,  C08K3/08 ,  C08K3/11 ,  C08L27/18 ,  C08L71/02 ,  C08G65/48 ,  C08G65/40 ,  B33Y30/00 ,  B33Y80/00 ,  C08K3/38

Abstract: A melt-processable consumable material configured as a feedstock for use in an additive manufacturing system includes a polymeric matrix comprising one or more polyaryletherketones, wherein the polymeric matrix comprises between about 10 wt % and about 50 wt % of the total weight of the feedstock. The material includes radiation shielding particles dispersed within the polymer matrix wherein the radiation shielding particles comprise between about 50 wt % and less than 90 wt % of the total weight of the feedstock.

公开(公告)号：US20220073677A1

公开(公告)日：2022-03-10

申请号：US17530145

申请日：2021-11-18

Applicant: Stratasys, Inc.

Inventor： William R. Priedeman, JR.

IPC: C08G63/688 ,  B29C64/40 ,  B33Y30/00 ,  B33Y70/00 ,  C08G18/08 ,  C08G18/38 ,  C08G69/42 ,  C08J5/00 ,  C08J11/06 ,  G03G9/087 ,  G03G15/16 ,  G03G15/22 ,  B29C64/118

Abstract: A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.

公开(公告)号：US11267199B2

公开(公告)日：2022-03-08

申请号：US15931415

申请日：2020-05-13

Applicant: Stratasys, Inc.

Inventor： Cody Smith ,  Christopher Herbst ,  Shawn Michael Koop

IPC: B29C64/118 ,  B29C64/321 ,  B29C64/227 ,  B33Y10/00 ,  B29K21/00 ,  B29C64/209 ,  B29K75/00 ,  B33Y30/00

Abstract: A low compressive force filament drive system for use with an additive manufacturing system includes a plurality of drives spaced from each other. Each drive includes a first rotatable shaft and a second rotatable shaft engaged with the first rotatable shaft in a counter rotational configuration. The filament drive system includes a pair of drive wheel, each fixedly attached to a shaft and comprising a groove about a circumference having a substantially smooth surface and positioned on opposing sides of a filament path with a gap therebetween so as to frictionally engage a filament provided in the filament path. The drive includes one or more bridge shafts, wherein each bridge shaft is configured to rotatably couple the adjacent drives of the plurality of drives, wherein the shafts are configured to be directly or indirectly driven by a motor. The counter rotating drive wheels pull the filament from a source and push the filament through a filament feed path to a feed drive in a print head without breaking or indenting a surface of the filament.

公开(公告)号：US20220016828A1

公开(公告)日：2022-01-20

申请号：US17474827

申请日：2021-09-14

Applicant: Stratasys, Inc.

Inventor： Luke M.B. Rodgers ,  Vittorio L. Jaker

IPC: B29C64/118 ,  B29C71/00 ,  B29B13/02 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/112 ,  G03G15/22 ,  B29C71/02 ,  B33Y70/00 ,  B29K71/00 ,  B29C35/16 ,  B29K105/00 ,  B29K77/00 ,  B29K79/00

Abstract: A method for printing a three-dimensional part with an additive manufacturing system, which includes providing a part material that compositionally has one or more semi-crystalline polymers and one or more secondary materials that are configured to retard crystallization of the one or more semi-crystalline polymers, where the one or more secondary materials are substantially miscible with the one or more semi-crystalline polymers. The method also includes melting the part material in the additive manufacturing system, forming at least a portion of a layer of the three-dimensional part from the melted part material in a build environment, and maintaining the build environment at an annealing temperature that is between a glass transition temperature of the part material and a cold crystallization temperature of the part material.

公开(公告)号：US11186679B2

公开(公告)日：2021-11-30

申请号：US15737579

申请日：2016-06-17

Applicant: Stratasys, Inc.

Inventor： William R. Priedeman, Jr.

IPC: B29C64/118 ,  C08G63/688 ,  C08G69/42 ,  B33Y70/00 ,  B33Y30/00 ,  G03G15/22 ,  G03G15/16 ,  C08G18/38 ,  C08G18/08 ,  C08J5/00 ,  C08J11/06 ,  G03G9/087 ,  B29C64/40 ,  B29K81/00

Abstract: A water dispersible sulfopolymer for use as a material in the layer-wise additive manufacture of a 3D part made of a non water dispersible polymer wherein the water dispersible polymer is a reaction product of a metal sulfo monomer, the water dispersible sulfo-polymer being dispersible in water resulting in separation of the water dispersible polymer from the 3D part made of the non water dispersible polymer.