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公开(公告)号：JP2000000893A
公开(公告)日：2000-01-07
申请号：JP16677199
申请日：1999-06-14
Applicant: 3D SYSTEMS INC , 3 D SYSTEMS INC
Inventor： HULL CHARLES WILLIAM , LEWIS CHARLES WILLIAM , FREED RAYMOND SAMUEL , SPENCE STUART THOMAS , VINSON WAYNE ALLAN , SMALLEY DENNIS ROLLETTE , HULL CHARLES W , SPENCE STUART T , LEWIS CHARLES W , VINSON WAYNE B , WAYNE S FRED , SMALLEY DENNIS R
Abstract: PROBLEM TO BE SOLVED: To perform the automatic designing economically with rapidity and high reliability by providing a step to partially change stored sets of data for defining the solid part of the shape of an object and coverting the solid part into a part consisting of a region where it is cured or a region where it is maintained in an uncured state according to each of exposure levels. SOLUTION: When a design displayed on the output image screen of a computer is satisfactory, parts are manufactured and when the design needs to be corrected, a change is repeatedly made through the computer. In this case, a pattern for stimulating each of many superposed thin layers 30a, 30b, 30c of a transferable fluid medium 22 is changed partially in a data processing step 25. Further, alteration data for converting the solid part to the part comprising a region where it is cured according to a first exposure level and a region where it is cured according to a second lower exposure level or a region where it is maintained in an uncured state while each of the thin layers 30a, 30b, 30c is initially formed, is created.
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公开(公告)号：AU7550396A
公开(公告)日：1997-04-17
申请号：AU7550396
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
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.
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公开(公告)号：CA2233225A1
公开(公告)日：1997-04-03
申请号：CA2233225
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： BEDAL BRYAN J L , EARL JOCELYN M , ALMQUIST THOMAS A , PANG THOMAS H , THAT DINH TON , KEREKES THOMAS A , THAYER JEFFREY S , LOCKARD MICHAEL S , LEYDEN RICHARD N , SMALLEY DENNIS R , FEDCHENKO RICHARD P , MEROT CHRISTIAN M , HULL CHARLES W
IPC: B22F3/00 , B29C35/08 , B29C41/12 , B29C41/36 , B29C67/00 , B29K63/00 , G06T17/00 , G06F19/00 , G06T17/40
Abstract: Methods of manipulating data in a thermal stereolithography apparatus, characterized in that the data represents a plurality of start/stop transitions to facilitate the computation of Boolean operations.
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公开(公告)号：DE68924952T2
公开(公告)日：1996-06-13
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.
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公开(公告)号：AT223300T
公开(公告)日：2002-09-15
申请号：AT96937643
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
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.
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Patent Agency Ranking
公开(公告)号：AT216951T
公开(公告)日：2002-05-15
申请号：AT96906277
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
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.
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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
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.
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公开(公告)号：AU2365595A
公开(公告)日：1995-11-16
申请号：AU2365595
申请日：1995-04-25
Applicant: 3D SYSTEMS INC
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公开(公告)号：DE69636237D1
公开(公告)日：2006-07-20
申请号：DE69636237
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: B29C67/00 , B22F3/00 , B29C35/08 , B29C41/12 , B29C41/36 , B29K63/00 , B41J2/01 , G03C9/08 , 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.
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公开(公告)号：AT328722T
公开(公告)日：2006-06-15
申请号：AT02078594
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 , 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.
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