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1.
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.
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2.
公开(公告)号:US20240017493A1
公开(公告)日:2024-01-18
申请号:US18337716
申请日:2023-06-20
Applicant: Formlabs, Inc.
Inventor: Luke Plummer , Maria Rosa Ruiz , Carlos Ruiz-Vargas , Robert Morgan , Joseph Johnson , Connor Evans
IPC: B29C64/343 , B33Y30/00 , B33Y40/00 , B29C64/329 , B22F12/57 , B22F12/52
CPC classification number: B29C64/343 , B33Y30/00 , B33Y40/00 , B29C64/329 , B22F12/57 , B22F12/52 , B33Y10/00
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 delivery apparatus may comprise a hopper, a trough, and a doser. The doser may be configured to rotate about an axis and may include a recess that, when the doser is rotated about the axis, travels into and out of the hopper and into and out of the trough. As a result, when powder is present in the hopper, the recess may carry powder from the hopper to the trough when the doser rotates. The trough and doser may be configured so that when the trough contains the desired amount of powder for recoating, the doser does not transfer additional material from the hopper into the trough. As a result, the amount of powder in the trough may be self-regulating.
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3.
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
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.
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公开(公告)号:US11685118B2
公开(公告)日:2023-06-27
申请号:US17326700
申请日:2021-05-21
Applicant: Formlabs, Inc.
Inventor: Luke Plummer , Maria Rosa Ruiz , Carlos Ruiz-Vargas , Robert Morgan , Joseph Johnson , Connor Evans
IPC: B29C67/00 , B29C64/343 , B33Y30/00 , B33Y40/00 , B29C64/329 , B22F12/57 , B22F12/52 , B33Y10/00 , B29C64/153 , B22F10/28
CPC classification number: B29C64/343 , B22F12/52 , B22F12/57 , B29C64/329 , B33Y30/00 , B33Y40/00 , B22F10/28 , B29C64/153 , B33Y10/00
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 delivery apparatus may comprise a hopper, a trough, and a doser. The doser may be configured to rotate about an axis and may include a recess that, when the doser is rotated about the axis, travels into and out of the hopper and into and out of the trough. As a result, when powder is present in the hopper, the recess may carry powder from the hopper to the trough when the doser rotates. The trough and doser may be configured so that when the trough contains the desired amount of powder for recoating, the doser does not transfer additional material from the hopper into the trough. As a result, the amount of powder in the trough may be self-regulating.
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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.
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公开(公告)号:USD979615S1
公开(公告)日:2023-02-28
申请号:US29739154
申请日:2020-06-23
Applicant: Formlabs, Inc.
Designer: Yoav Reches , John E. Ouchterlony , Luke Plummer
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公开(公告)号:USD836141S1
公开(公告)日:2018-12-18
申请号:US29603007
申请日:2017-05-05
Applicant: Formlabs, Inc.
Designer: Eduardo Torrealba , Maxim Lobovsky , Yoav Reches , Jason Livingston , Luke Plummer , Brian Chan
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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.
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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.
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公开(公告)号:USD937912S1
公开(公告)日:2021-12-07
申请号:US29739150
申请日:2020-06-23
Applicant: Formlabs, Inc.
Designer: Yoav Reches , John E. Ouchterlony , Brian Chan , Luke Plummer
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