公开(公告)号：US20250001700A1

公开(公告)日：2025-01-02

申请号：US18758109

申请日：2024-06-28

Applicant: FORMLABS, INC.

Inventor： Matthew Nielsen

IPC: B29C64/393 ,  B29C64/245 ,  B33Y50/02 ,  B33Y80/00

Abstract: Methods and systems for generating a support structure for a three-dimensional object in additive fabrication. The method involves utilizing a processor to generate the support structure, which includes a plurality of support pillars with notches, a plurality of contact structures that connect the support pillars to the object, and a plurality of trusses. The trusses are connected to different support pillars at opposite ends, forming a cohesive structure.

公开(公告)号：US12179427B2

公开(公告)日：2024-12-31

申请号：US18535403

申请日：2023-12-11

Applicant: Formlabs, Inc.

Inventor： Mark J. Frykman ,  Mark J. Ripoll ,  Lawrence Cheung ,  Nathan Jeffery ,  Yoav Reches ,  Derek J. Vilim

IPC: B29C64/245 ,  B33Y30/00

Abstract: An improved additive fabrication device and a build platform are provided. The additive fabrication device is configured to form layers of material on a build surface. The additive fabrication device comprising: a build platform comprising: a rigid structure; an actuation structure attached to the rigid structure, wherein the actuation structure comprises one or more sheet handles and a flexible sheet, and wherein a first surface of the flexible sheet forms a build surface on which the additive fabrication device is configured to form layers of materials; and the one or more sheet handles are configured to be actuated to apply a force to the flexible sheet while at least a part of the actuation structure remains attached to the rigid structure, to deform at least a part of the flexible sheet away from the rigid structure.

公开(公告)号：US20240278503A1

公开(公告)日：2024-08-22

申请号：US18581519

申请日：2024-02-20

Applicant: Formlabs, Inc.

Inventor： Hayley C. Whelan ,  Joshua Bradshaw

IPC: B29C64/386 ,  B29C64/153 ,  B29C64/205 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

CPC classification number: B29C64/386 ,  B29C64/153 ,  B29C64/205 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

Abstract: Methods and systems of producing a 3D object on a selective laser sintering device are described. The method involves retaining a first layer of powder of uniform thickness on a build platform, scanning a laser beam along a predetermined path to consolidate portions of the first layer of powder to form a cross-section of the 3D object, and depositing a second layer of powder of uniform thickness on top of the first layer prior to completing the scanning process. The powder deposition device is moved from one end of the build platform to the other, depositing the second layer on both the loose powder and the previously consolidated powder.

公开(公告)号：US12006444B2

公开(公告)日：2024-06-11

申请号：US17569070

申请日：2022-01-05

Applicant: Formlabs, Inc.

Inventor： Cheying Kuo

IPC: C09D4/00 ,  B29C64/118 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C08F220/34 ,  C08K3/36 ,  C09D7/40 ,  C09D7/61 ,  C09D133/14

CPC classification number: C09D4/00 ,  B29C64/118 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  C08F220/343 ,  C08K3/36 ,  C09D7/61 ,  C09D7/68 ,  C09D7/69 ,  C09D133/14 ,  C08F2800/20 ,  C08F2810/20 ,  C08K2201/005

Abstract: A resin formulation that may be used for additive manufacturing, for example, to provide a water-breakable object is generally described.

公开(公告)号：US11926105B2

公开(公告)日：2024-03-12

申请号：US16835991

申请日：2020-03-31

Applicant: Formlabs, Inc.

Inventor： Benjamin FrantzDale

IPC: B29C64/40 ,  B29C64/129 ,  B29C64/268 ,  B29C64/386 ,  B33Y10/00 ,  B33Y50/00

CPC classification number: B29C64/40 ,  B29C64/386 ,  B29C64/129 ,  B29C64/268 ,  B33Y10/00 ,  B33Y50/00

Abstract: According to some aspects, techniques are described for generating support structures that may be easily removed after fabrication yet provide sufficient structural support during fabrication. In some cases, the techniques may include tuning an extent to which pillars of a support structure are interconnected to one another in regions proximate to the part. In some cases, the techniques may include fabricating very small contact structures, referred to herein as “hair” supports, in regions of a support structure where it connects with the part. In some cases, the techniques may include generating support structures that comprise obliquely-angled tips, which allow forces during fabrication to be applied in a preferred direction even when the support structure does not make a connection to the part in the preferred direction.

公开(公告)号：US11926096B2

公开(公告)日：2024-03-12

申请号：US17156925

申请日：2021-01-25

Applicant: Formlabs, Inc.

Inventor： Craig Broady ,  Gurshan Deol ,  Gagandeep Singh

IPC: B29C64/245 ,  B29C64/135 ,  B33Y30/00 ,  B33Y40/20 ,  B29C64/124 ,  B29C64/153

CPC classification number: B29C64/245 ,  B29C64/135 ,  B33Y30/00 ,  B33Y40/20 ,  B29C64/124 ,  B29C64/153

Abstract: According to some aspects, an additive fabrication device and a build platform suitable for use within an additive fabrication device are provided. The build platform may include a build surface on which material may be formed by the additive fabrication device when the build platform is installed within the additive fabrication device. According to some embodiments, the build platform may include a flexible build layer and at least one removal mechanism configured to be actuated to apply a force to the flexible build layer. Such actuation may cause the flexible build layer to deform, thereby enabling separation of material adhered to the build surface from the build platform. According to some embodiments, the build platform may comprise a restorative mechanism that acts to return the flexible build layer to a flat state so that subsequent additive fabrication may form material on a flat build surface.

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：US20230311419A1

公开(公告)日：2023-10-05

申请号：US18191227

申请日：2023-03-28

Applicant: Formlabs, Inc.

Inventor： Luke Plummer ,  Maria Rosa Ruiz ,  Carlos Ruiz-Vargas ,  Robert Morgan ,  Joseph Johnson ,  Connor Evans

IPC: B29C64/343 ,  B29C64/329 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00

CPC classification number: B29C64/343 ,  B29C64/329 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00

Abstract: Techniques are described for consistently moving powder from a hopper into a trough for subsequent delivery into a build area of an additive fabrication system. A powder conveyer may be arranged at least partially within the hopper and configured to be actuated to transfer powder to the trough. The powder conveyer may be formed as a screw conveyor, for example. Such techniques do not require complex closed-loop control systems and may be effective irrespective of the flowability of the powder. In at least some cases, there may be no production of excess powder because the amount of powder that is metered into the trough may be precisely controlled to be the amount needed for recoating.

公开(公告)号：US11745392B2

公开(公告)日：2023-09-05

申请号：US16871646

申请日：2020-05-11

Applicant: Formlabs, Inc.

Inventor： Alex McCarthy ,  Maxim Lobovsky ,  Martin Galese

IPC: B29C33/38 ,  B29C33/56 ,  B29C64/112 ,  B29C39/36 ,  B28B7/34 ,  B29C64/129 ,  B29C33/00 ,  B29C33/40 ,  B29C39/26 ,  B29C33/52 ,  B22D29/00 ,  B33Y10/00 ,  B29K71/00 ,  B29K503/08 ,  B29C39/24

CPC classification number: B29C33/3842 ,  B22D29/00 ,  B28B7/346 ,  B29C33/0011 ,  B29C33/3807 ,  B29C33/3814 ,  B29C33/40 ,  B29C33/52 ,  B29C33/565 ,  B29C39/26 ,  B29C39/36 ,  B29C64/112 ,  B29C64/129 ,  B33Y10/00 ,  B29C39/24 ,  B29C2033/385 ,  B29K2071/00 ,  B29K2503/08 ,  B29K2901/10

Abstract: According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

公开(公告)号：US11633908B2

公开(公告)日：2023-04-25

申请号：US16289737

申请日：2019-03-01

Applicant: Formlabs, Inc.

Inventor： Maximilian Zieringer ,  Alpay Kimyonok

IPC: B29C64/129 ,  B29C35/08 ,  B33Y70/10 ,  B33Y80/00 ,  B29K75/00 ,  B33Y10/00 ,  B29K33/00

Abstract: The present disclosure relates generally to curable resins, in particular latent cure resins, and related methods for use in an additive fabrication (e.g., 3-dimensional printing) device.