-
公开(公告)号：DE69828059D1
公开(公告)日：2005-01-13
申请号：DE69828059
申请日：1998-05-12
Applicant: 3D SYSTEMS INC
Abstract: This invention relates to the stepwise layer-by-layer formation of a three-dimensional object through application of the principles of stereolithography and to the automatic detection of surface features of each layer of a three-dimensional object to manufacture parts more reliably, more accurately and more quickly. Automatic detection of trapped volume regions and size of solidified cross-sectional regions are disclosed. Automatic selection of recoating styles is made based on(1) the detected regions, (2) empirically or otherwise determined optimum recoating styles for different types of regions, and (3) a look-up table, other correlation system, or processor for associating recoating style information with laminae containing particular identified regions.
-
公开(公告)号：DE69621001D1
公开(公告)日：2002-06-06
申请号：DE69621001
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
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：DE69828059T2
公开(公告)日：2005-11-03
申请号：DE69828059
申请日：1998-05-12
Applicant: 3D SYSTEMS INC
Abstract: This invention relates to the stepwise layer-by-layer formation of a three-dimensional object through application of the principles of stereolithography and to the automatic detection of surface features of each layer of a three-dimensional object to manufacture parts more reliably, more accurately and more quickly. Automatic detection of trapped volume regions and size of solidified cross-sectional regions are disclosed. Automatic selection of recoating styles is made based on(1) the detected regions, (2) empirically or otherwise determined optimum recoating styles for different types of regions, and (3) a look-up table, other correlation system, or processor for associating recoating style information with laminae containing particular identified regions.
-
公开(公告)号：DE69133094D1
公开(公告)日：2002-10-02
申请号：DE69133094
申请日：1991-10-30
Applicant: 3D SYSTEMS INC
Inventor： SNEAD E , SMALLEY R , COHEN ADAM L , ALLISON W , VORGITCH J , CHEN P , NGUYEN D , SCHMIDT A , EVANS E , FREED S , JACOBS F , VINSON A
IPC: B29C35/08 , B29C67/00 , B29K105/24 , B29L9/00 , G06F17/50
-
Patent Agency Ranking
公开(公告)号：DE69133094T2
公开(公告)日：2003-04-17
申请号：DE69133094
申请日：1991-10-30
Applicant: 3D SYSTEMS INC
Inventor： SNEAD E , SMALLEY R , COHEN ADAM L , ALLISON W , VORGITCH J , CHEN P , NGUYEN D , SCHMIDT A , EVANS E , FREED S , JACOBS F , VINSON A
IPC: B29C35/08 , B29C67/00 , B29K105/24 , B29L9/00 , G06F17/50
-
公开(公告)号：DE69623489D1
公开(公告)日：2002-10-10
申请号：DE69623489
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN N , THAYER S , BEDAL J , ALMQUIST A , HULL W , EARL M , KEREKES A , SMALLEY R , MEROT M , FEDCHENKO P , LOCKARD S , PANG H , THAT 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.
-
公开(公告)号：DE69623489T2
公开(公告)日：2003-11-20
申请号：DE69623489
申请日：1996-09-27
Applicant: 3D SYSTEMS INC
Inventor： LEYDEN N , THAYER S , BEDAL J , ALMQUIST A , HULL W , EARL M , KEREKES A , SMALLEY R , MEROT M , FEDCHENKO P , LOCKARD S , PANG H , THAT 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.
-
公开(公告)号：DE69621001T2
公开(公告)日：2003-04-03
申请号：DE69621001
申请日：1996-01-29
Applicant: 3D SYSTEMS INC
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：DE69806476T2
公开(公告)日：2003-03-06
申请号：DE69806476
申请日：1998-04-22
Applicant: 3D SYSTEMS INC
Inventor： PARTANEN P , SMALLEY R
Abstract: Methods and apparatus for forming three-dimensional objects from a medium solidifiable when subjected to a beam of pulsed radiation wherein the pulses of radiation are made to occur when the beam is directed to desired pulsing locations on a target surface of the medium. Preferred embodiments of the instant invention include a pulsed laser assembly, including a laser and a pulse generation circuit, a control computer, a plurality of mirrors and mirror encoders. The computer controls the movement of the mirrors which guide the laser beam across the surface of the solidifiable medium. The pulsing of the laser beam is correlated to the position of the mirrors and thus, is not dependent upon time. Pulsing linked to position of beam placement allows controlled and repeatable use of a pulsed beam for the formation of objects.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.021 seconds)
