公开(公告)号：BR9607005A

公开(公告)日：1997-10-28

申请号：BR9607005

申请日：1996-01-29

Applicant: 3D SYSTEMS INC

Inventor： ALMQUIST THOMAS A ,  HULL CHARLES W ,  THAYER JEFFREY S ,  LEYDEN RICHARD N ,  JACOBS PAUL F ,  SMALLEY DENNIS R

IPC: B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00

Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.

公开(公告)号：AT134333T

公开(公告)日：1996-03-15

申请号：AT90306129

申请日：1990-06-06

Applicant: 3D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  LEWIS MARK A ,  ALMQUIST THOMAS A ,  NGUYEN HOP D

IPC: B29C35/08 ,  B29C67/00 ,  B29C71/00 ,  B29C71/04 ,  B29K105/24 ,  B29C39/42

Abstract: An improved stereolithographic apparatus and method is described. In one embodiment, the improvement comprises immersing at least a portion of a part in a volume of a liquid solvent in a vapor degreaser while subjecting the portion to ultrasonic agitation to substantially remove excess resin. Several examples of solvents are provided, including ethanol, and Freon TMS. In a second embodiment, the improvement comprises building the part on a layer of liquid resin supported by a volume of a dense, immiscible, and UV transparent intermediate liquid, and integratably immersing at least a portion of the built part in the intermediate liquid, and then either subjecting the immersed portion to ultrasonic agitation to substantially remove excess resin, or subjecting the immersed portion to UV light. Several examples of intermediate liquids are provided, including perfluorinated fluids, such as Fluorinert FC-40, and water-based salt solutions, such as solutions of magnesium sulfate or sodium chloride in water.

公开(公告)号：WO9623647A3

公开(公告)日：1996-11-07

申请号：PCT/US9601451

申请日：1996-01-29

Applicant: 3D SYSTEMS INC

Inventor： ALMQUIST THOMAS A ,  HULL CHARLES W ,  THAYER JEFFREY S ,  LEYDEN RICHARD N ,  JACOBS PAUL F ,  SMALLEY DENNIS R

IPC: B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00

CPC classification number: B29C41/12 ,  B29C41/36 ,  B29C64/135 ,  B29C64/20 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.

Abstract translation: 用于基本横截面地构建三维物体的方法和装置，包括使用反向旋转辊形成连续层的方法和装置，喷墨重涂器，旋转构件，悬挂材料，经由弯月面分配材料的施加器杆 和/或独立分配的流，并且还包括确定形成层的优选区域并检查构建误差的方法和装置。

公开(公告)号：DE69634921T2

公开(公告)日：2005-12-01

申请号：DE69634921

申请日：1996-09-27

Applicant: 3D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  THAYER JEFFREY S ,  BEDAL BRYAN J L ,  ALMQUIST THOMAS A ,  HULL CHARLES WILLIAM ,  EARL JOCELYN M ,  KEREKES THOMAS A ,  SMALLEY DENNIS R ,  MEROT CHRISTIAN M ,  FEDCHENKO RICHARD P ,  LOCKARD MICHAEL S ,  PANG THOMAS H ,  THAT TON

IPC: B22F3/00 ,  B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B29K63/00 ,  G06T17/00 ,  B41J2/01 ,  G03C9/08

Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.

公开(公告)号：DE69634921D1

公开(公告)日：2005-08-11

申请号：DE69634921

申请日：1996-09-27

Applicant: 3D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  THAYER JEFFREY S ,  BEDAL BRYAN J L ,  ALMQUIST THOMAS A ,  HULL CHARLES WILLIAM ,  EARL JOCELYN M ,  KEREKES THOMAS A ,  SMALLEY DENNIS R ,  MEROT CHRISTIAN M ,  FEDCHENKO RICHARD P ,  LOCKARD MICHAEL S ,  PANG THOMAS H ,  THAT TON

IPC: B22F3/00 ,  B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B29K63/00 ,  G06T17/00 ,  B41J2/01 ,  G03C9/08

Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.

公开(公告)号：AT299090T

公开(公告)日：2005-07-15

申请号：AT02078595

申请日：1996-09-27

Applicant: 3D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  THAYER JEFFREY S ,  BEDAL BRYAN J L ,  ALMQUIST THOMAS A ,  HULL CHARLES WILLIAM ,  EARL JOCELYN M ,  KEREKES THOMAS A ,  SMALLEY DENNIS R ,  MEROT CHRISTIAN M ,  FEDCHENKO RICHARD P ,  LOCKARD MICHAEL S ,  PANG THOMAS H ,  THAT DINH TON

IPC: B22F3/00 ,  B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B29K63/00 ,  G06T17/00 ,  B41J2/01 ,  G03C9/08

Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.

公开(公告)号：AU3194899A

公开(公告)日：1999-10-18

申请号：AU3194899

申请日：1999-03-26

Applicant: 3D SYSTEMS INC

Inventor： HULL CHARLES W ,  LOCKARD MICHAEL S ,  ALMQUIST THOMAS A

IPC: B22F5/00 ,  B29C33/04 ,  B29C67/04 ,  B29C33/38 ,  B29C67/02 ,  B29C33/02 ,  B29C70/68

Abstract: Tool having a molding surface is formed from a flowable material (e.g., powder material) wherein the shape of molding surface is formed from a molding process using a master pattern having a surface with a shape substantially the same as the shape of the molding surface to be formed. The tool has at least one thermal control element located within it and spaced from the molding surface where a component used in forming the thermal control element is located within the flowable material prior to solidifying the material. The powder material is preferably a mixture of metals. The thermal control elements include fluid flow paths, heating elements, temperature sensors, and the like.

公开(公告)号：BR9610750A

公开(公告)日：1999-07-13

申请号：BR9610750

申请日：1996-09-27

Applicant: 3D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  THAYER JEFFREY S ,  BEDAL BRYAN J L ,  ALMQUIST THOMAS A ,  HULL CHARLES W ,  EARL JOCELYN M ,  KEREKES THOMAS A ,  SMALLEY DENNIS R ,  MEROT CHRISTIAN M ,  FEDCHENKO RICHARD P ,  LOCKARD MICHAEL S ,  PANG THOMAS H ,  THAT DINH TON

IPC: B22F3/00 ,  B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B29K63/00 ,  G06T17/00

Abstract: A three-dimensional object is formed by selectively depositing successive layers (14) of build material from a print-head (9) having a plurality of orifices or nozzles (10(1)-10(96)), such as an ink-jet type of print-head. The print-head (9) is moved (X-Y control) relative to a support platform (15) in a series of scans in the X-direction offset from one another in the Y-direction and possibly overlapping. The orifices (10(1)-10(96)) extend transversely of the scan X-direction and may be set at an angle (α) to it to control the resolution perpendicular to the scan direction. The platform (15) is movable relative to the print-head in the Z-direction for forming each successive layer (14). The build material is a flowable material and may be a radiation-curable material, such as an ultra-violet curable photo-polymer. The data according to which each layer is formed may be manipulated according to a selected build style to determine the selective activation of the print-head orifices.

公开(公告)号：CA2210802A1

公开(公告)日：1996-08-08

申请号：CA2210802

申请日：1996-01-29

Applicant: 3D SYSTEMS INC

Inventor： SMALLEY DENNIS R ,  ALMQUIST THOMAS A ,  LEYDEN RICHARD N ,  THAYER JEFFREY S ,  JACOBS PAUL F ,  HULL CHARLES W

IPC: B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00

Abstract: Methods and apparatus for use in building three-dimensional objects on substantially a cross-sectional basis including methods and apparatus for forming successive layers using counter-rotating rollers, ink jet recoaters, spinning members which sling material, applicator bars that dispense material via a meniscus and/or independently dispensed streams, and also including methods and apparatus to determine a preferred region over which to form a layer and to check for building errors.

公开(公告)号：DE68924952D1

公开(公告)日：1996-01-11

申请号：DE68924952

申请日：1989-09-26

Applicant: 3D SYSTEMS INC

Inventor： ALMQUIST THOMAS A ,  HULL CHARLES W ,  MODREK BORZO ,  SERKUCZEWSKI ANDRZEJ R ,  JACOBS PAUL F ,  LEWIS CHARLES W ,  LEWIS MARK A ,  LIRAN ABRAHAM ,  SMALLEY DENNIS R ,  COHEN ADAM L

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12 ,  B29C39/42

Abstract: A stereolithography method and system for producing three-dimensional plastic objects by forming a plurality of thin layers of partially cured plastic material which are thin cross sections of the desired object. A layer of polymerizable resin is applied to a support surface and the excess is struck off, such as with a doctor blade, to form a smoothed layer. The smoothed layer is subjected to radiation in a predetermined pattern to form the cross-sectional layer into the desired shape. A plurality of layers are subsequently applied, leveled, then cured in the same manner to produce the desired three-dimensional object. Apparatus for measuring the level of the surface of a fluid is also provided. Variations in the level of fluid will be detected and may be used to drive a pump, diaphragm, or plunger in order to maintain the level of the fluid.