公开(公告)号：US20250001675A1

公开(公告)日：2025-01-02

申请号：US18753010

申请日：2024-06-25

Applicant: 3D Systems, Inc.

Inventor： Nickolas M. Clinton ,  David Sabo ,  Grant Draper ,  Samuel David Rohrbach ,  Charles W. Hull

IPC: B29C64/124 ,  B29C64/245 ,  B29C64/255 ,  B29K105/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

Abstract: A 3D printing system includes a machine chassis, a vessel support, a gas pressure source, a build vessel, a light engine, and a lateral movement mechanism. The build vessel is supported by the vessel support and includes a transparent sheet. The vessel support includes a carriage having a top surface. The carriage is configured to be positioned along a lateral X-axis under the transparent sheet. The carriage defines an optical path and a fluid channel that at least partially surrounds the optical path. The gas pressure source is coupled to the fluid channel. Gas flowing from the gas pressure source and out of the fluid channel is configured to maintain a vertical spacing between the top surface of the carriage and the transparent sheet. The lateral movement mechanism translates and positions the carriage and light engine together along the lateral X-axis.

公开(公告)号：US11241823B2

公开(公告)日：2022-02-08

申请号：US16507746

申请日：2019-07-10

Applicant: 3D Systems, Inc.

Inventor： Evgeny Korol ,  Charles W. Hull

IPC: B29C64/135 ,  B29C64/264 ,  B29C64/153 ,  B29C64/245 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three dimensional printing system for manufacturing a three dimensional article includes a build platform, a light engine, and a controller. The build platform is coupled to a vertical positioning apparatus. The light engine is configured to generate and scan a columnar array of light spots across a build plane. The columnar array of light spots are arranged along a second axis. The light spots are scanned along a first axis. The build plane is laterally defined by mutually perpendicular X and Y axes. In the build plane, the first axis is parallel to the X-axis.

公开(公告)号：US20250001688A1

公开(公告)日：2025-01-02

申请号：US18818073

申请日：2024-08-28

Applicant: 3D Systems, Inc.

Inventor： Nickolas M. Clinton ,  Charles W. Hull ,  Grant Draper ,  David Sabo ,  Samuel David Rohrbach

IPC: B29C64/245 ,  B29C64/232 ,  B29C64/236 ,  B29C64/393

Abstract: A 3D printing system includes a machine chassis, a build vessel, a carriage, an actuator, a build platform, and a light engine. The build vessel is supported by the machine chassis and contains a photocurable liquid. The build vessel includes a downward extending tension ring that tensions a transparent sheet and defines a datum plane. The carriage supports a glass plate and a roller. The carriage is configured to press the roller against the two opposing sides of the tension ring. The actuator is configured to vertically position an upper surface of the glass plate in two positions including (U) an upper position at which the upper surface of the glass plate is coplanar with the datum plane and (L) a lower position in which the upper surface of the glass is spaced away from the datum plane.

公开(公告)号：US11833757B2

公开(公告)日：2023-12-05

申请号：US17720355

申请日：2022-04-14

Applicant: 3D Systems, Inc.

Inventor： John Stockwell ,  Pingyong Xu ,  Peter Scott Turner ,  Charles W. Hull

IPC: B29C64/364 ,  B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B29C64/25

CPC classification number: B29C64/364 ,  B29C64/124 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build tray, a movement mechanism, a light engine, a housing, a gas handling system, and a controller. The resin vessel includes a transparent sheet on a lower side. The housing defines two chambers including an upper chamber and a lower chamber. The upper chamber is in fluidic communication with the resin contained by the resin vessel. The lower chamber is in fluid communication with a lower surface of the transparent sheet. The controller is configured to (a) operate the gas handling system to reduce and control a partial pressure of oxygen in the upper and lower chambers, (b) operate the movement mechanism and the light engine to form the 3D article in a layer-by-layer manner.

公开(公告)号：US11718030B2

公开(公告)日：2023-08-08

申请号：US15845027

申请日：2017-12-18

Applicant: 3D Systems, Inc.

Inventor： Charles W. Hull

IPC: B29C64/277 ,  B29C64/153 ,  B29C64/393 ,  B29C64/268 ,  B33Y30/00 ,  B33Y10/00 ,  B22F12/00 ,  B22F10/10 ,  B22F10/28 ,  B22F12/13 ,  B22F12/17 ,  B22F12/41 ,  B22F12/90 ,  B22F10/362 ,  B22F10/77 ,  B22F12/42 ,  B22F12/63 ,  B22F12/67

CPC classification number: B29C64/277 ,  B22F10/28 ,  B22F10/362 ,  B22F12/13 ,  B22F12/17 ,  B22F12/41 ,  B22F12/90 ,  B29C64/153 ,  B29C64/268 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/10 ,  B22F10/77 ,  B22F12/42 ,  B22F12/63 ,  B22F12/67 ,  B22F2999/00 ,  G01N2203/0641 ,  G01N2203/0652 ,  G05B2219/37573 ,  G05B2219/49023 ,  Y02P10/25 ,  B22F2999/00 ,  B22F12/13 ,  B22F12/17 ,  B22F2203/11 ,  B22F12/90 ,  B22F2999/00 ,  B22F12/13 ,  B22F12/17 ,  B22F2201/11 ,  B22F12/90

Abstract: Methods and apparatus are provided for controlling the temperature of powders in a powder-based additive manufacturing system using spatial light modulation. Powder layer temperatures can be measured and selectively controlled using a radiation source comprising a spatial light modulator. The spatial light modulator applies a visible light radiation and/or IR radiation. In addition to controlling the pre-fused temperature of the powder in the image plane, the spatial light modulator can also apply the radiation to fuse the powder.

公开(公告)号：US11305480B2

公开(公告)日：2022-04-19

申请号：US16843492

申请日：2020-04-08

Applicant: 3D Systems, Inc.

Inventor： Charles W. Hull

IPC: B29C64/112 ,  A61L27/52 ,  A61L27/38 ,  B29C64/188 ,  C12M1/00 ,  B29C64/40 ,  B33Y70/00 ,  B29C64/106 ,  C12M3/00 ,  B29C64/129 ,  B29C64/35 ,  B29C64/386 ,  B29C64/194 ,  A61L27/24 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29C35/08 ,  B29K105/00 ,  B29L31/00

Abstract: There is provided a 3D printing system, methods, and materials for the 3D printing of objects that include a cured hydrogel material, an uncured hydrogel material, and a support material. The cured hydrogel material may define a scaffold for organs or other biological structures. The 3D printing system selectively deposits the hydrogel material and support material, dries the hydrogel material, and selectively applies a catalyst to the hydrogel material to selectively cure the hydrogel material. Once the 3D printing has completed, the uncured hydrogel material may be drained and the support material may be melted or dissolved leaving a scaffold of cured hydrogel material that may be infused with living cells of the desired organ or biological structure.

公开(公告)号：US20200016824A1

公开(公告)日：2020-01-16

申请号：US16507746

申请日：2019-07-10

Applicant: 3D Systems, Inc.

Inventor： Evgeny Korol ,  Charles W. Hull

IPC: B29C64/135 ,  B29C64/153 ,  B29C64/393 ,  B29C64/264 ,  B29C64/245

Abstract: A three dimensional printing system for manufacturing a three dimensional article includes a build platform, a light engine, and a controller. The build platform is coupled to a vertical positioning apparatus. The light engine is configured to generate and scan a columnar array of light spots across a build plane. The columnar array of light spots are arranged along a second axis. The light spots are scanned along a first axis. The build plane is laterally defined by mutually perpendicular X and Y axes. In the build plane, the first axis is parallel to the X-axis.

公开(公告)号：US20160332368A1

公开(公告)日：2016-11-17

申请号：US15222522

申请日：2016-07-28

Applicant: 3D Systems, Inc.

Inventor： Thomas Alan Kerekes ,  Jouni P. Partanen ,  Yong Chen ,  Charles W. Hull

IPC: B29C67/00 ,  B33Y50/02 ,  G05B19/4099 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y30/00 ,  B33Y40/00

CPC classification number: B33Y80/00 ,  B29C64/135 ,  B29C64/386 ,  B29C64/40 ,  B29K2995/0073 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  G05B19/4099 ,  G05B2219/49019

Abstract: A solid imaging apparatus and method employing levels of exposure varied with gray scale or time or both of digitally light projected image of a cross-section of a three-dimensional object on a solidifiable photopolymer build material. The gray scale levels of exposure of projected pixels permits the polymerization boundaries in projected boundary pixels to be controlled to achieve preserved image features in a three-dimensional object and smooth out rough or uneven edges that would otherwise occur using digital light projectors that are limited by the number of pixels in an image projected over the size of the image. Software is used to control intensity parameters applied to pixels to be illuminated in the image projected in the cross-section being exposed in the image plane.

Abstract translation: 一种固体成像装置和方法，其采用灰度或时间变化的曝光程度，或者在可凝固的光致聚合物构建材料上的三维物体的横截面的数字光投影图像。 投影像素的灰度级曝光允许控制投影边界像素中的聚合边界，以实现三维物体中保存的图像特征，并平滑粗糙或不均匀的边缘，否则将使用数字投影仪发生的限制。 图像中的像素数量投影在图像的大小上。 软件用于控制应用于在图像平面中暴露的横截面中投影的图像中要照明的像素的强度参数。

公开(公告)号：US20250001676A1

公开(公告)日：2025-01-02

申请号：US18753118

申请日：2024-06-25

Applicant: 3D Systems, Inc.

Inventor： Nickolas M. Clinton ,  Charles W. Hull ,  Grant Draper ,  David Sabo ,  Samuel David Rohrbach

IPC: B29C64/124 ,  B29C64/218 ,  B29C64/236 ,  B29C64/245 ,  B29C64/255 ,  B29K105/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

Abstract: A 3D printing system includes a build vessel, a carriage, and a light engine. The build vessel includes a vessel base having a downward extending tension ring that tensions a transparent sheet. The transparent sheet laterally bounds a build plane that is defined over orthogonal lateral axis X and Y. The carriage includes a roller that extends between two opposing sides of the tension ring. The roller exerts an upward force on the transparent sheet and the two opposing sides of the tension ring. The vertical constraint of the roller biased against the tension ring provides a location and improved planarity of a supported portion of the transparent sheet adjacent to the roller. The light engine light engine is configured to selectively apply radiation to a projected area of the build plane through the supported portion of the transparent sheet.

公开(公告)号：US20220339873A1

公开(公告)日：2022-10-27

申请号：US17720355

申请日：2022-04-14

Applicant: 3D Systems, Inc.

Inventor： John Stockwell ,  Pingyong Xu ,  Peter Scott Turner ,  Charles W. Hull

IPC: B29C64/364 ,  B29C64/124 ,  B29C64/393 ,  B29C64/245 ,  B29C64/232 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) printing system for manufacturing a 3D article includes a resin vessel, a build tray, a movement mechanism, a light engine, a housing, a gas handling system, and a controller. The resin vessel includes a transparent sheet on a lower side. The housing defines two chambers including an upper chamber and a lower chamber. The upper chamber is in fluidic communication with the resin contained by the resin vessel. The lower chamber is in fluid communication with a lower surface of the transparent sheet. The controller is configured to (a) operate the gas handling system to reduce and control a partial pressure of oxygen in the upper and lower chambers, (b) operate the movement mechanism and the light engine to form the 3D article in a layer-by-layer manner.