公开(公告)号：US20220097304A1

公开(公告)日：2022-03-31

申请号：US17549315

申请日：2021-12-13

Applicant: Stratasys, Inc.

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

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

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：US20250153426A1

公开(公告)日：2025-05-15

申请号：US18957161

申请日：2024-11-22

Applicant: Stratasys, Inc.

Inventor： Christopher Prucha ,  Joel Ong

IPC: B29C64/124 ,  B29C37/00 ,  B29C64/227 ,  B29C64/232 ,  B29C64/245 ,  B29C64/364 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.

公开(公告)号：US12214553B2

公开(公告)日：2025-02-04

申请号：US17965699

申请日：2022-10-13

Applicant: Stratasys, Inc.

Inventor： Christopher Prucha ,  Joel Ong ,  John Paton

IPC: B29C64/364 ,  B01D71/32 ,  B29C64/135 ,  B29C64/245 ,  B29C64/25 ,  B29C64/255 ,  B29C64/379 ,  B33Y30/00

Abstract: An additive manufacturing system including a base assembly and a tray assembly. The base assembly includes a build window, substantially transparent to electromagnetic radiation; a projection system configured to project electromagnetic radiation toward an upper surface of the build window; and a tray seat arranged around a perimeter of the build window. The tray assembly is configured to engage with the base assembly in an engaged configuration and includes: a tray structure defining a registration feature configured to engage the tray seat to locate an aperture proximal to the upper surface of the build window in the engaged configuration; and a separation membrane that is configured to laminate across the upper surface of the build window in response to an evacuation of gas from an interstitial region and configured to separate from the build window in response to injection of gas into the interstitial region.

公开(公告)号：US12186979B2

公开(公告)日：2025-01-07

申请号：US18133453

申请日：2023-04-11

Applicant: Stratasys, Inc.

Inventor： Christopher Prucha ,  Joel Ong

IPC: B29C64/124 ,  B29C64/227 ,  B29C64/232 ,  B29C64/245 ,  B29C64/364 ,  B29C64/393 ,  B33Y50/02 ,  B29C37/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.

公开(公告)号：US12158432B2

公开(公告)日：2024-12-03

申请号：US17173174

申请日：2021-02-10

Applicant: Stratasys, Inc.

Inventor： Joel Ong ,  Christopher Prucha ,  Steve Kranz ,  Eduardo González-Maldonado

IPC: G01N21/88 ,  B33Y50/00

Abstract: A method includes: accessing a first selection of a first test variable; based on the selection, photocuring a first test build by varying a value of the first test variable over a first set of test regions; accessing a first set of measurements of the first test build; calculating a target range of the first test variable based on the first set of measurements; accessing a second selection of a second test variable; based on the second selection, photocuring a second test build by varying a value of the second test variable over a second set of test regions while maintaining a target value of the first test variable within the target range of the first test variable; accessing a second set of measurements of the second test build; and calculating a second target range of the second test variable based on the second set of measurements.

公开(公告)号：US20240310813A1

公开(公告)日：2024-09-19

申请号：US18670397

申请日：2024-05-21

Applicant: Stratasys, Inc.

Inventor： Joel Ong

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

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：US11846927B2

公开(公告)日：2023-12-19

申请号：US17856860

申请日：2022-07-01

Applicant: Stratasys, Inc.

Inventor： Joel Ong

IPC: G05B19/4093 ,  G06T19/20 ,  G06T7/11 ,  G06T7/13 ,  G06T7/73 ,  B33Y50/02 ,  B29C64/393 ,  G06T7/62 ,  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：US20210370585A1

公开(公告)日：2021-12-02

申请号：US17404966

申请日：2021-08-17

Applicant: Stratasys, Inc.

Inventor： Christopher Prucha ,  Joel Ong

IPC: B29C64/124 ,  B29C64/245 ,  B29C64/364 ,  B29C64/393 ,  B29C64/227 ,  B29C64/232

Abstract: A layer-by layer method for additive manufacturing that includes: photocuring a first volume of resin to form a layer of a build at an upper surface of a separation membrane laminated over a build window; injecting a fluid into an interstitial region between the separation membrane and the build window; retracting the build from the build window; evacuating the fluid from the interstitial region; and photocuring a second volume of liquid resin to form a subsequent layer of the build between an upper surface of a separation membrane and the previous layer of the build.

公开(公告)号：US20210354392A1

公开(公告)日：2021-11-18

申请号：US17388598

申请日：2021-07-29

Applicant: Stratasys, Inc.

Inventor： Christopher Prucha ,  Joel Ong

IPC: B29C64/364 ,  B33Y30/00 ,  B29C64/245 ,  B29C64/25 ,  B01D71/32 ,  B29C64/255 ,  B29C64/135 ,  B29C64/379

Abstract: An additive manufacturing system including a base assembly and a tray assembly. The base assembly includes a build window, substantially transparent to electromagnetic radiation; a projection system configured to project electromagnetic radiation toward an upper surface of the build window; and a tray seat arranged around a perimeter of the build window. The tray assembly is configured to engage with the base assembly in an engaged configuration and includes: a tray structure defining a registration feature configured to engage the tray seat to locate an aperture proximal to the upper surface of the build window in the engaged configuration; and a separation membrane that is configured to laminate across the upper surface of the build window in response to an evacuation of gas from an interstitial region and configured to separate from the build window in response to injection of gas into the interstitial region.