公开(公告)号：US11878467B2

公开(公告)日：2024-01-23

申请号：US16427734

申请日：2019-05-31

Applicant: Formlabs, Inc.

Inventor： Shane Wighton ,  Maxim Lobovsky ,  Robert Joachim ,  Jack Moldave ,  Adam Damiano ,  Christian Reed ,  Dmitri Megretski ,  Benjamin FrantzDale

IPC: B29C64/255 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/227 ,  B29C64/245 ,  B29C64/153 ,  B29C64/218 ,  B33Y40/00 ,  B29C64/307 ,  B29C64/223 ,  B29C64/135 ,  B29C64/393 ,  G01L1/12 ,  G01L5/00 ,  G04F10/10 ,  B65D65/40 ,  B65D5/40

CPC classification number: B29C64/255 ,  B29C64/124 ,  B29C64/135 ,  B29C64/153 ,  B29C64/218 ,  B29C64/223 ,  B29C64/227 ,  B29C64/245 ,  B29C64/264 ,  B29C64/307 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B65D65/40 ,  G01L1/127 ,  G01L5/0047 ,  G01L5/0076 ,  G04F10/10

Abstract: Techniques for producing a flat film surface in additive fabrication are provided. According to some aspects, a movable stage may be arranged beneath a container having a base that includes a flexible film. The movable stage may include a segmented member in which a number of segments are aligned along a common axis. The segmented member may maintain contact with the flexible film as the movable stage moves beneath the container, with the segmented member producing a flat surface of the flexible film, at least within a region above the movable stage. According to some embodiments, multiple segmented members may be provided within the movable stage, such as in parallel with one another.

公开(公告)号：US20230078198A1

公开(公告)日：2023-03-16

申请号：US17867201

申请日：2022-07-18

Applicant: Formlabs, Inc.

Inventor： Maxim Lobovsky ,  Shane Wighton ,  Dmitri Megretski ,  Adam Damiano

IPC: B29C64/255 ,  B65D65/40 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/393 ,  B29C64/227 ,  G01L1/12 ,  G01L5/00 ,  G04F10/10 ,  B29C64/245 ,  B29C64/153 ,  B29C64/218 ,  B33Y40/00 ,  B29C64/307 ,  B29C64/223 ,  B29C64/135

Abstract: Techniques for force sensing in additive fabrication are provided. According to some aspects, an additive fabrication device may include a force sensor configured to measure a force applied to a build platform during fabrication. A length of time taken for a layer of material to separate from a surface other than the build platform to which it is adhered may be determined based on measurements from the force sensor. Subsequent additive fabrication operations, such as subsequent motion of the build platform, may be adapted based on the determined length of time.

公开(公告)号：US11897199B2

公开(公告)日：2024-02-13

申请号：US17828293

申请日：2022-05-31

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Andre Comella

IPC: B01D37/00 ,  B29C64/135 ,  B33Y40/20 ,  B29C64/35 ,  B29C64/393 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/227 ,  B33Y10/00 ,  B29C64/124 ,  B01D39/16 ,  B01J8/00 ,  B33Y40/10 ,  B33Y40/00 ,  B01D29/00 ,  B29L31/14 ,  B29L31/00 ,  B29C37/00

CPC classification number: B29C64/35 ,  B01D29/0093 ,  B01D39/1623 ,  B01J8/006 ,  B29C64/124 ,  B29C64/129 ,  B29C64/227 ,  B29C64/393 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y50/02 ,  B29C2037/96 ,  B29L2031/14 ,  B29L2031/737

Abstract: According to some aspects, a method is provided of removing debris from a liquid photopolymer in an additive fabrication device. According to some embodiments, a mesh of solid material may be formed in an additive fabrication device from a liquid photopolymer, and particles of debris present in the liquid photopolymer may adhere to the mesh. The debris may thereby be removed from the liquid photopolymer by removing the mesh from the additive fabrication device. The mesh may then be discarded.

公开(公告)号：US20220363001A1

公开(公告)日：2022-11-17

申请号：US17828293

申请日：2022-05-31

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Andre Comella

IPC: B29C64/35 ,  B29C64/393 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/227 ,  B33Y40/00 ,  B33Y10/00 ,  B29C64/124 ,  B01D39/16 ,  B01J8/00

Abstract: According to some aspects, a method is provided of removing debris from a liquid photopolymer in an additive fabrication device. According to some embodiments, a mesh of solid material may be formed in an additive fabrication device from a liquid photopolymer, and particles of debris present in the liquid photopolymer may adhere to the mesh. The debris may thereby be removed from the liquid photopolymer by removing the mesh from the additive fabrication device. The mesh may then be discarded.

公开(公告)号：US11312074B2

公开(公告)日：2022-04-26

申请号：US16570981

申请日：2019-09-13

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Dmitri Megretski ,  Shane Wighton ,  Maxim Lobovsky

IPC: B29C64/255 ,  B29C64/245 ,  B33Y30/00 ,  B29C64/124

Abstract: According to some aspects, an additive fabrication apparatus is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a supporting liquid or a film disposed within a container, in addition to the build platform, a liquid photopolymer, and/or a previously formed layer of a material. The additive fabrication apparatus may comprise a container and a leveling element, wherein the leveling element is configured to move across a liquid-liquid interface to promote or create a flat interface between the two liquids. According to some aspects, the additive fabrication comprises a film disposed between two liquids, wherein the film maintains or provides a flat surface at the interface of the two liquids.

公开(公告)号：US20210078251A1

公开(公告)日：2021-03-18

申请号：US16570981

申请日：2019-09-13

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Dmitri Megretski ,  Shane Wighton ,  Maxim Lobovsky

IPC: B29C64/255 ,  B29C64/245

Abstract: According to some aspects, an additive fabrication apparatus is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a supporting liquid or a film disposed within a container, in addition to the build platform, a liquid photopolymer, and/or a previously formed layer of a material. The additive fabrication apparatus may comprise a container and a leveling element, wherein the leveling element is configured to move across a liquid-liquid interface to promote or create a flat interface between the two liquids. According to some aspects, the additive fabrication comprises a film disposed between two liquids, wherein the film maintains or provides a flat surface at the interface of the two liquids.

公开(公告)号：US20220362998A1

公开(公告)日：2022-11-17

申请号：US17710257

申请日：2022-03-31

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Dmitri Megretski ,  Shane Wighton ,  Maxim Lobovsky

IPC: B29C64/255 ,  B29C64/245

Abstract: According to some aspects, an additive fabrication apparatus is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a supporting liquid or a film disposed within a container, in addition to the build platform, a liquid photopolymer, and/or a previously formed layer of a material. The additive fabrication apparatus may comprise a container and a leveling element, wherein the leveling element is configured to move across a liquid-liquid interface to promote or create a flat interface between the two liquids. According to some aspects, the additive fabrication comprises a film disposed between two liquids, wherein the film maintains or provides a flat surface at the interface of the two liquids.

公开(公告)号：US11167491B2

公开(公告)日：2021-11-09

申请号：US16427912

申请日：2019-05-31

Applicant: Formlabs, Inc.

Inventor： Benjamin FrantzDale ,  Konstantinos Oikonomopoulos ,  Shane Wighton ,  Dmitri Megretski ,  Adam Damiano ,  James Loomis ,  Christian Reed

IPC: B29C64/255 ,  B65D65/40 ,  B29C64/264 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/124 ,  B29C64/393 ,  B29C64/227 ,  G01L1/12 ,  G01L5/00 ,  G04F10/10 ,  B29C64/245 ,  B29C64/153 ,  B29C64/218 ,  B29C64/307 ,  B29C64/223 ,  B29C64/135 ,  B33Y40/00

Abstract: Multi-film containers for use in additive fabrication devices are provided. According to some aspects, a container may include multiple films that are at least partially detached from one another. In some embodiments, the multiple films may include films formed from different materials. As one example, an upper film may be formed so as to be relatively impermeable to substances within a source material of an additive fabrication device, whereas a lower film may be formed so as to provide desirable mechanical properties. In some cases, the multiple films may be commonly tensioned while being unattached to one another.

公开(公告)号：US10668665B2

公开(公告)日：2020-06-02

申请号：US15791926

申请日：2017-10-24

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Andre Comella

IPC: B01D37/00 ,  B29C64/35 ,  B29C64/393 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/227 ,  B33Y40/00 ,  B33Y10/00 ,  B29C64/124 ,  B01D39/16 ,  B01J8/00 ,  B29L31/14 ,  B29L31/00 ,  B29C37/00

Abstract: According to some aspects, a method is provided of removing debris from a liquid photopolymer in an additive fabrication device. According to some embodiments, a mesh of solid material may be formed in an additive fabrication device from a liquid photopolymer, and particles of debris present in the liquid photopolymer may adhere to the mesh. The debris may thereby be removed from the liquid photopolymer by removing the mesh from the additive fabrication device. The mesh may then be discarded.

公开(公告)号：US11383442B2

公开(公告)日：2022-07-12

申请号：US16867839

申请日：2020-05-06

Applicant: Formlabs, Inc.

Inventor： Adam Damiano ,  Andre Comella

IPC: B01D37/00 ,  B33Y80/00 ,  B29C64/35 ,  B29C64/393 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/227 ,  B33Y40/00 ,  B33Y10/00 ,  B29C64/124 ,  B01D39/16 ,  B01J8/00 ,  B29L31/14 ,  B29L31/00 ,  B29C37/00

Abstract: According to some aspects, a method is provided of removing debris from a liquid photopolymer in an additive fabrication device. According to some embodiments, a mesh of solid material may be formed in an additive fabrication device from a liquid photopolymer, and particles of debris present in the liquid photopolymer may adhere to the mesh. The debris may thereby be removed from the liquid photopolymer by removing the mesh from the additive fabrication device. The mesh may then be discarded.