公开(公告)号：US20210162656A1

公开(公告)日：2021-06-03

申请号：US16498808

申请日：2018-03-29

Applicant: AGENCY FOR SCIENCE TECHNOLOGY AND RESEARCH

Inventor： Weijie Cyrus Beh ,  Yiqi Seow ,  Sau Yin Chin

IPC: B29C64/129 ,  B29C64/245 ,  B29C64/255 ,  B29C64/286 ,  B29C64/268 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y10/00

Abstract: Systems and methods for continuous printing of a three-dimensional (3D) object are provided. The system includes a resin tank, an optical image source, a support fluid reservoir and a pumping structure. The resin tank is where the 3D object is printed and includes a print bed to form a base of the 3D object. The optical image source modulates light in accordance with a 3D image to vary a degree and pattern of crosslinking in a photocrosslinkable resin in the resin tank. The support fluid reservoir is in fluid communication with the resin tank and includes a support fluid which is immiscible with the photocrosslinkable resin. And the pumping structure is configured to transfer the support fluid from the support fluid reservoir to the resin tank such that the support fluid rises in the resin tank at a same rate as vertical height of a top of the 3D object as the 3D object is printed on the print bed.

公开(公告)号：US12186978B2

公开(公告)日：2025-01-07

申请号：US17924093

申请日：2021-04-30

Applicant: Agency for Science, Technology and Research

Inventor： Weijie Cyrus Beh

IPC: B29C41/12 ,  A61L27/06 ,  A61L27/52 ,  B29C41/20 ,  B29C64/124 ,  B29C64/245 ,  B29C64/25 ,  B29C64/264 ,  B29C64/40 ,  B29C71/02 ,  B29C71/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B29C33/00 ,  B29K105/00 ,  B29K105/24 ,  B29L31/00

Abstract: There is provided a method of forming a structure that is in contact with an object, the method comprising: (i) supporting a flowable precursor with a flowable support at a position that allows said flowable precursor to be in contact with the object; and (ii) crosslinking at least part of the flowable precursor that is in contact with the object to form a structure that is in contact with the object, wherein a top surface of the part of the flowable precursor that is to be crosslinked, is in interface with a fluid medium. Also provided is a system for performing the method.

公开(公告)号：US20230271380A1

公开(公告)日：2023-08-31

申请号：US17924093

申请日：2021-04-30

Applicant: Agency for Science, Technology and Research

Inventor： Weijie Cyrus Beh

IPC: B29C64/124 ,  A61L27/52 ,  A61L27/06 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

CPC classification number: B29C64/124 ,  A61L27/52 ,  A61L27/06 ,  B29C64/245 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  A61L2420/02 ,  B29K2105/0061

Abstract: There is provided a method of forming a structure that is in contact with an object, the method comprising: (i) supporting a flowable precursor with a flowable support at a position that allows said flowable precursor to be in contact with the object; and (ii) crosslinking at least part of the flowable precursor that is in contact with the object to form a structure that is in contact with the object, wherein a top surface of the part of the flowable precursor that is to be crosslinked, is in interface with a fluid medium. Also provided is a system for performing the method.

公开(公告)号：US11413812B2

公开(公告)日：2022-08-16

申请号：US16498808

申请日：2018-03-29

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Weijie Cyrus Beh ,  Yiqi Seow ,  Sau Yin Chin

IPC: B29C64/129 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/245 ,  B29C64/255 ,  B29C64/286 ,  B29C64/268

Abstract: Systems and methods for continuous printing of a three-dimensional (3D) object are provided. The system includes a resin tank, an optical image source, a support fluid reservoir and a pumping structure. The resin tank is where the 3D object is printed and includes a print bed to form a base of the 3D object. The optical image source modulates light in accordance with a 3D image to vary a degree and pattern of crosslinking in a photocrosslinkable resin in the resin tank. The support fluid reservoir is in fluid communication with the resin tank and includes a support fluid which is immiscible with the photocrosslinkable resin. And the pumping structure is configured to transfer the support fluid from the support fluid reservoir to the resin tank such that the support fluid rises in the resin tank at a same rate as vertical height of a top of the 3D object as the 3D object is printed on the print bed.