公开(公告)号：US20180297291A1

公开(公告)日：2018-10-18

申请号：US16009722

申请日：2018-06-15

Applicant: Formlabs, Inc.

Inventor： Shane Wighton ,  Maxim Lobovsky ,  Peter Schmidt-Nielsen

IPC: B29C64/40 ,  B29C64/129 ,  B29C64/141 ,  B29C64/124 ,  B29C33/38 ,  B29C64/106 ,  B29C64/165 ,  B29C64/135 ,  B29C64/153 ,  B29C64/118 ,  B29C64/147

Abstract: Techniques for generating a support structure for an object are provided. In some embodiments, one or more regions of the object are identified as one or more regions to which mechanical support is to be provided and one or more support points within at least a first region of the one or more regions are identified. A support structure may be generated for the object that comprises one or more support tips coupled to the object at the one or more support points, where the support tips being generated based at least in part on a direction normal to the surface of the object at the respective support point. Techniques for providing visual feedback to a user relating to an amount of support that a support structure is expected to provide during fabrication are also provided.

公开(公告)号：US11801646B2

公开(公告)日：2023-10-31

申请号：US17556069

申请日：2021-12-20

Applicant: Formlabs, Inc.

Inventor： Shane Wighton ,  Maxim Lobovsky ,  Peter Schmidt-Nielsen

IPC: B29C33/52 ,  G05B19/4099 ,  G06F30/10 ,  G06T15/08 ,  G06T17/00 ,  G06T17/10 ,  G06T19/00 ,  B29C64/40 ,  B29C64/118 ,  B29C64/147 ,  B29C64/153 ,  B29C64/135 ,  B29C64/165 ,  B29C64/106 ,  B29C33/38 ,  B29C64/124 ,  B29C64/141 ,  B29C64/112 ,  B29C64/129 ,  B33Y50/00 ,  B29C64/393 ,  B29C64/386 ,  B29C33/44 ,  G03F7/00 ,  G06F111/10 ,  G06F113/10 ,  B33Y10/00 ,  B33Y50/02

CPC classification number: B29C64/40 ,  B29C33/3842 ,  B29C33/448 ,  B29C64/106 ,  B29C64/112 ,  B29C64/118 ,  B29C64/124 ,  B29C64/129 ,  B29C64/135 ,  B29C64/141 ,  B29C64/147 ,  B29C64/153 ,  B29C64/165 ,  B29C64/386 ,  B29C64/393 ,  B33Y50/00 ,  G03F7/70416 ,  B29C2033/385 ,  B33Y10/00 ,  B33Y50/02 ,  G05B2219/49013 ,  G05B2219/49016 ,  G05B2219/49017 ,  G05B2219/49023 ,  G06F2111/10 ,  G06F2113/10

Abstract: Techniques for evaluating support for an object to be fabricated via an additive fabrication device are provided. In some embodiments, a three-dimensional representation of the object is obtained and a plurality of voxels corresponding to the representation of the object is generated. A first supportedness value may be assigned to a first voxel of the plurality of voxels based on an amount of support provided by a support structure to the first voxel, and a second supportedness value determined for a second voxel of the plurality of voxels, wherein the second voxel neighbors the first voxel, and wherein the second supportedness value is determined based on the first supportedness value of the first voxel and a weight value representing a transmission rate of supportedness through voxels of the plurality of voxels.

公开(公告)号：US20230241835A1

公开(公告)日：2023-08-03

申请号：US18163487

申请日：2023-02-02

Applicant: Formlabs Inc.

Inventor： Jackson Hamilton ,  Cole Durbin ,  Maxim Lobovsky

IPC: B29C64/124 ,  B29C64/307 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B29C64/124 ,  B29C64/307 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: A method for producing a three-dimensional object on an additive fabrication device includes placing a first composite material patch on a bottom of a vessel of the additive fabrication device. The method also includes moving a build plate of the additive fabrication device whereby at least one of the build platform or a layer of at least partially cured resin on the build plate touches the first composite material patch. The method further includes irradiating resin contained inside the vessel with an energy source to at least partially cure a layer of resin integrated with the first composite material patch.

公开(公告)号：US11351721B2

公开(公告)日：2022-06-07

申请号：US16869932

申请日：2020-05-08

Applicant: Formlabs, Inc.

Inventor： Ian Ferguson ,  Konstantinos Oikonomopoulos ,  Steven Thomas ,  Benjamin FrantzDale ,  Nicholas M. Sohn ,  Maxim Lobovsky

IPC: B29C64/214 ,  B29C64/124 ,  B29C64/20 ,  B33Y30/00 ,  B29C64/35 ,  B33Y40/00 ,  B29K105/00

Abstract: According to some aspects, an additive fabrication device is provided configured to form layers of material on a build platform, each layer of material being formed so as to contact a container in addition to the build platform and/or a previously formed layer of material. The additive fabrication device may comprise a container and a wiper, wherein the wiper comprises a wiper arm and a wiper blade coupled to said wiper arm using a pivoting coupling.

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：US11097449B2

公开(公告)日：2021-08-24

申请号：US15981279

申请日：2018-05-16

Applicant: Formlabs, Inc.

Inventor： Alex McCarthy ,  Maxim Lobovsky ,  Martin Galese

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

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：US20210245443A1

公开(公告)日：2021-08-12

申请号：US17240654

申请日：2021-04-26

Applicant: Formlabs, Inc.

Inventor： Jack Moldave ,  Sarah Bennedsen ,  Christian Reed ,  Konstantinos Oikonomopoulos ,  Robert Joachim ,  Geoff Hill ,  Maxim Lobovsky

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/314 ,  B29C64/135 ,  B01F13/08 ,  B01F15/00

Abstract: According to some aspects, a mixer for detection and/or removal of material in an undesired location of an additive fabrication device is provided. For instance, in an inverse stereolithography device, liquid photopolymer may adhere and cure or partially cure to a surface of the additive fabrication device in a location that may interfere with the additive fabrication process and/or cause the additive fabrication process to be unsuccessful. The mixer may be coupled to a movable structure within the additive fabrication device so that the mixer, when coupled to the movable structure, may be moved along at least one axis within the additive fabrication device. The mixer may be configured to detect and/or remove undesired material from a surface within the additive fabrication device.

公开(公告)号：US10987873B2

公开(公告)日：2021-04-27

申请号：US16817522

申请日：2020-03-12

Applicant: Formlabs, Inc.

Inventor： Jack Moldave ,  Sarah Bennedsen ,  Christian Reed ,  Konstantinos Oikonomopoulos ,  Robert Joachim ,  Geoff Hill ,  Maxim Lobovsky

IPC: B29C64/106 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/314 ,  B29C64/135 ,  B01F13/08 ,  B01F15/00

Abstract: According to some aspects, a mixer for detection and/or removal of material in an undesired location of an additive fabrication device is provided. For instance, in an inverse stereolithography device, liquid photopolymer may adhere and cure or partially cure to a surface of the additive fabrication device in a location that may interfere with the additive fabrication process and/or cause the additive fabrication process to be unsuccessful. The mixer may be coupled to a movable structure within the additive fabrication device so that the mixer, when coupled to the movable structure, may be moved along at least one axis within the additive fabrication device. The mixer may be configured to detect and/or remove undesired material from a surface within the additive fabrication device.

公开(公告)号：US20200292415A1

公开(公告)日：2020-09-17

申请号：US16818886

申请日：2020-03-13

Applicant: Formlabs, Inc.

Inventor： Andrew M. Goldman ,  Henry Whitney ,  Justin Keenan ,  Benjamin FrantzDale ,  Michael Fogleman ,  Maxim Lobovsky

IPC: G01M11/02 ,  B33Y30/00 ,  B33Y50/00 ,  B29C64/386

Abstract: According to some aspects, calibration techniques are provided that allow an optics module of an additive fabrication device to be installed and operated in a stereolithography device by a user. In particular, the calibration techniques enable the optics module to be calibrated in a way that only depends on the characteristics of the optics module, and not upon any other components of the stereolithography device. As a result, the techniques enable a user of a stereolithography device to remove one optics module and replace it with another, without it being necessary to repair or replace the whole device. In some cases, the calibration techniques may include directing light onto one or more fiducial targets within the stereolithography device and measuring light scattered from said targets.

公开(公告)号：US20200238628A1

公开(公告)日：2020-07-30

申请号：US16776363

申请日：2020-01-29

Applicant: Formlabs, Inc.

Inventor： Shane Wighton ,  Maxim Lobovsky ,  Peter Schmidt-Nielsen

IPC: B29C64/40 ,  B29C64/118 ,  B29C33/38 ,  B29C64/165 ,  B29C64/112 ,  B29C64/393 ,  B29C64/135 ,  B29C64/129 ,  B29C64/124 ,  B29C64/153 ,  B29C64/106 ,  B29C64/147 ,  B29C64/141 ,  B29C64/386 ,  B33Y50/00 ,  G06F111/10 ,  B33Y50/02 ,  B33Y10/00

Abstract: Techniques for evaluating support for an object to be fabricated via an additive fabrication device are provided. In some embodiments, a three-dimensional representation of the object is obtained and a plurality of voxels corresponding to the representation of the object is generated. A first supportedness value may be assigned to a first voxel of the plurality of voxels based on an amount of support provided by a support structure to the first voxel, and a second supportedness value determined for a second voxel of the plurality of voxels, wherein the second voxel neighbors the first voxel, and wherein the second supportedness value is determined based on the first supportedness value of the first voxel and a weight value representing a transmission rate of supportedness through voxels of the plurality of voxels.