公开(公告)号：US12011881B2

公开(公告)日：2024-06-18

申请号：US17386143

申请日：2021-07-27

Applicant: Formlabs, Inc.

Inventor： Carlos Ruiz-Vargas ,  Robb Morgan

IPC: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B33Y30/00

CPC classification number: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B33Y30/00 ,  G05B2219/49023

Abstract: Techniques are described for calibrating an optical system in an additive fabrication device using an image of the build surface within the device. These techniques allow calibration to be performed by imaging one or more calibration features generated on (or at) the build surface, which may include illuminated regions of the build surface, regions of the build surface on which solid material has been formed, and/or regions of the build surface to which energy has otherwise been directed thereby making those regions distinguishable from their surroundings. The calibration features may be produced (at least in part) by the optical system to be calibrated. The location of the calibration features within the image may be compared with the intended location of these calibration features, and corrections to the optical system determined based on any differences between the actual and intended locations.

公开(公告)号：US20210107063A1

公开(公告)日：2021-04-15

申请号：US17022401

申请日：2020-09-16

Applicant: Formlabs, Inc.

Inventor： Robb Morgan ,  Luke Plummer ,  Christopher Auld

IPC: B22F12/00 ,  B33Y30/00 ,  B28B1/00 ,  B29C64/25

Abstract: According to some aspects, degradation of material in a sintering additive fabrication process may be mitigated or avoided by fabricating parts within a chamber that includes one or more thermal breaks. The thermal break may be implemented using a variety of structures, but generally allows material in the chamber close to the surface to be maintained at different temperatures than the material further from the surface. For instance, as a result of the thermal break, parts located within the material of the chamber that were formed earlier during fabrication may be kept cooler to avoid damage to the parts yet the upper surface (sometimes called the “build surface”) of unconsolidated material may be heated enough so as to require minimal additional energy exposure to trigger consolidation.

公开(公告)号：US12053926B2

公开(公告)日：2024-08-06

申请号：US18366631

申请日：2023-08-07

Applicant: Formlabs, Inc.

Inventor： Robb Morgan ,  Luke Plummer ,  Christopher Auld

IPC: B29C64/255 ,  B28B1/00 ,  B29C64/153 ,  B29C64/25 ,  B33Y30/00 ,  B29C64/295

CPC classification number: B29C64/255 ,  B28B1/001 ,  B29C64/25 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/295

Abstract: According to some aspects, degradation of material in a sintering additive fabrication process may be mitigated or avoided by fabricating parts within a chamber that includes one or more thermal breaks. The thermal break may be implemented using a variety of structures, but generally allows material in the chamber close to the surface to be maintained at different temperatures than the material further from the surface. For instance, as a result of the thermal break, parts located within the material of the chamber that were formed earlier during fabrication may be kept cooler to avoid damage to the parts yet the upper surface (sometimes called the “build surface”) of unconsolidated material may be heated enough so as to require minimal additional energy exposure to trigger consolidation.

公开(公告)号：US20220032547A1

公开(公告)日：2022-02-03

申请号：US17386143

申请日：2021-07-27

Applicant: Formlabs, Inc.

Inventor： Carlos Ruiz-Vargas ,  Robb Morgan

IPC: B29C64/386 ,  B33Y50/00 ,  G05B19/4099

Abstract: Techniques are described for calibrating an optical system in an additive fabrication device using an image of the build surface within the device. These techniques allow calibration to be performed by imaging one or more calibration features generated on (or at) the build surface, which may include illuminated regions of the build surface, regions of the build surface on which solid material has been formed, and/or regions of the build surface to which energy has otherwise been directed thereby making those regions distinguishable from their surroundings. The calibration features may be produced (at least in part) by the optical system to be calibrated. The location of the calibration features within the image may be compared with the intended location of these calibration features, and corrections to the optical system determined based on any differences between the actual and intended locations.

公开(公告)号：US20240416589A1

公开(公告)日：2024-12-19

申请号：US18664019

申请日：2024-05-14

Applicant: Formlabs, Inc.

Inventor： Carlos Ruiz-Vargas ,  Robb Morgan

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  G05B19/4099

Abstract: Techniques are described for calibrating an optical system in an additive fabrication device using an image of the build surface within the device. These techniques allow calibration to be performed by imaging one or more calibration features generated on (or at) the build surface, which may include illuminated regions of the build surface, regions of the build surface on which solid material has been formed, and/or regions of the build surface to which energy has otherwise been directed thereby making those regions distinguishable from their surroundings. The calibration features may be produced (at least in part) by the optical system to be calibrated. The location of the calibration features within the image may be compared with the intended location of these calibration features, and corrections to the optical system determined based on any differences between the actual and intended locations.

公开(公告)号：USD835162S1

公开(公告)日：2018-12-04

申请号：US29603006

申请日：2017-05-05

Applicant: Formlabs, Inc.

Designer： Yoav Reches ,  Caitlin Reyda ,  Robb Morgan ,  Jason Livingston ,  Ian Ferguson ,  Jonathan Fussman

公开(公告)号：US20240025117A1

公开(公告)日：2024-01-25

申请号：US18366631

申请日：2023-08-07

Applicant: Formlabs, Inc.

Inventor： Robb Morgan ,  Luke Plummer ,  Christopher Auld

IPC: B29C64/255 ,  B33Y30/00 ,  B29C64/25 ,  B28B1/00

CPC classification number: B29C64/255 ,  B33Y30/00 ,  B29C64/25 ,  B28B1/001 ,  B29C64/153

Abstract: According to some aspects, degradation of material in a sintering additive fabrication process may be mitigated or avoided by fabricating parts within a chamber that includes one or more thermal breaks. The thermal break may be implemented using a variety of structures, but generally allows material in the chamber close to the surface to be maintained at different temperatures than the material further from the surface. For instance, as a result of the thermal break, parts located within the material of the chamber that were formed earlier during fabrication may be kept cooler to avoid damage to the parts yet the upper surface (sometimes called the “build surface”) of unconsolidated material may be heated enough so as to require minimal additional energy exposure to trigger consolidation.

公开(公告)号：US11745424B2

公开(公告)日：2023-09-05

申请号：US17022401

申请日：2020-09-16

Applicant: Formlabs, Inc.

Inventor： Robb Morgan ,  Luke Plummer ,  Christopher Auld

IPC: B33Y30/00 ,  B29C64/153 ,  B29C64/255 ,  B29C64/25 ,  B28B1/00 ,  B29C64/295

CPC classification number: B29C64/255 ,  B28B1/001 ,  B29C64/25 ,  B33Y30/00 ,  B29C64/153 ,  B29C64/295

Abstract: According to some aspects, degradation of material in a sintering additive fabrication process may be mitigated or avoided by fabricating parts within a chamber that includes one or more thermal breaks. The thermal break may be implemented using a variety of structures, but generally allows material in the chamber close to the surface to be maintained at different temperatures than the material further from the surface. For instance, as a result of the thermal break, parts located within the material of the chamber that were formed earlier during fabrication may be kept cooler to avoid damage to the parts yet the upper surface (sometimes called the “build surface”) of unconsolidated material may be heated enough so as to require minimal additional energy exposure to trigger consolidation.