公开(公告)号：US11149156B2

公开(公告)日：2021-10-19

申请号：US15962219

申请日：2018-04-25

Applicant: Formlabs, Inc.

Inventor： Dmitri Megretski ,  Maximilian Zieringer ,  Benjamin FrantzDale ,  Maxim Lobovsky

IPC: C09D11/101 ,  C09D11/037 ,  B33Y70/00 ,  C08K5/00 ,  C08K3/013

Abstract: The present application relates generally to photopolymer blends and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device. According to some aspects, compositions are provided for the modification of a base photopolymer resin. The compositions may comprise colorant agent and/or cure-modifying composition. The compositions may be selected to cause, when combined with the base photopolymer resin to form a photo-curable composition, at least one property (e.g., color, depth of the cure) of the photo-curable composition to fall within a pre-determined range. Related kits and methods are also generally described.

公开(公告)号：US10744712B2

公开(公告)日：2020-08-18

申请号：US15248455

申请日：2016-08-26

Applicant: Formlabs, Inc.

Inventor： Dmitri Megretski ,  Manuel Odendahl ,  Eric M. Van Albert ,  Hugh L. Medal

IPC: B29C64/135 ,  B29C64/386 ,  B29C64/20 ,  B29C64/393 ,  B29C64/259 ,  B29K105/00

Abstract: According to some aspects, an additive fabrication device is provided comprising a container removably attached to the additive fabrication device, and a detector configured to sense a fluid level of photopolymer resin within the container, wherein said detector does not contact said container.

公开(公告)号：US10350827B2

公开(公告)日：2019-07-16

申请号：US15634055

申请日：2017-06-27

Applicant: Formlabs, Inc.

Inventor： Alexander Nolet ,  Benjamin FrantzDale ,  Dmitri Megretski

IPC: G01B21/02 ,  B29C64/232 ,  B29C64/124 ,  B29C64/227 ,  B29C64/393 ,  G01B5/06 ,  G01L5/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Techniques for measuring a position of a build platform in an additive fabrication device are provided. Such techniques may include detecting the onset and/or dissipation of force applied to a build platform as it moves from being in contact with, to being out of contact with, a container. In some embodiments, the techniques described herein may be applied in a stereolithographic additive fabrication device. According to some embodiments, measurement of forces applied to a build platform may be used to provide for reliable and consistent measurements of the height of the build platform relative to a container by measuring such forces at various positions of the build platform and analyzing the pattern of the forces with distance from the container.

公开(公告)号：US20240246293A1

公开(公告)日：2024-07-25

申请号：US18420626

申请日：2024-01-23

Applicant: Formlabs, Inc.

Inventor： Andrew M. Goldman ,  Thomas Orr ,  Dmitri Megretski ,  Sung Sik Woo ,  Jonathan E. Evans ,  Daniel Viner ,  Alec B. Rudd ,  Maxim Lobovsky ,  Graham L. Medlin ,  Hayley C. Whelan

IPC: B29C64/282 ,  B29C64/129 ,  B29C64/268 ,  B29C64/286 ,  B33Y10/00 ,  B33Y30/00 ,  G02F1/1335 ,  G02F1/13357 ,  H01L25/075

CPC classification number: B29C64/282 ,  B29C64/129 ,  B29C64/268 ,  B29C64/286 ,  G02F1/133536 ,  G02F1/133548 ,  G02F1/133603 ,  H01L25/0753 ,  B33Y10/00 ,  B33Y30/00

Abstract: An improved additive fabrication device includes a build platform, a vessel designed to hold a liquid photopolymer, and an optical system featuring a micro-LED panel. The micro-LED panel, comprising multiple pixels, projects actinic energy toward the photopolymer in the vessel. The panel selectively activates pixels according to a mask pattern, enabling precise control over the fabrication process. This innovative device offers a streamlined approach to additive manufacturing, utilizing advanced optical technology for efficient and accurate production of complex structures.

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：US20230182390A1

公开(公告)日：2023-06-15

申请号：US18062627

申请日：2022-12-07

Applicant: Formlabs Inc.

Inventor： Dmitri Megretski ,  Benjamin FrantzDale ,  Jacob Sanchez ,  Alec Rudd

IPC: B29C64/30 ,  B29C64/264 ,  B33Y40/00

CPC classification number: B29C64/30 ,  B29C64/264 ,  B33Y40/00 ,  B33Y10/00

Abstract: A method includes curing a photopolymer resin disposed between a first build surface and a flexible film layer to form a print layer of a printed part. Here, the print layer of the printed part defines a second build surface attached to the flexible film layer. The method also includes translating a peeling mechanism between the second build surface and the flexible film layer to detach the flexible film layer from the second build surface.

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：US20170057174A1

公开(公告)日：2017-03-02

申请号：US15248455

申请日：2016-08-26

Applicant: Formlabs, Inc.

Inventor： Dmitri Megretski ,  Manuel Odendahl ,  Eric M. Van Albert ,  Hugh L. Medal

IPC: B29C67/00

Abstract: According to some aspects, an additive fabrication device is provided comprising a container removably attached to the additive fabrication device, and a detector configured to sense a fluid level of photopolymer resin within the container, wherein said detector does not contact said container.

Abstract translation: 根据一些方面，提供了一种添加剂制造装置，其包括可移除地附接到添加剂制造装置的容器，以及被配置为感测容器内的光聚合物树脂的液面的检测器，其中所述检测器不接触所述容器。

公开(公告)号：US12179422B2

公开(公告)日：2024-12-31

申请号：US17672145

申请日：2022-02-15

Applicant: Formlabs, Inc.

Inventor： Zachary Zguris ,  Maxim Lobovsky ,  Dmitri Megretski

IPC: B29C64/124 ,  B29C64/165 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29K105/00

Abstract: A multi-component print surface and associated additive manufacturing methods are generally described.

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.