DE68929309D1 - Verringerung des stereolithographischen Verbiegens - Google Patents

Verringerung des stereolithographischen Verbiegens

Info

Publication number
DE68929309D1
DE68929309D1 DE68929309T DE68929309T DE68929309D1 DE 68929309 D1 DE68929309 D1 DE 68929309D1 DE 68929309 T DE68929309 T DE 68929309T DE 68929309 T DE68929309 T DE 68929309T DE 68929309 D1 DE68929309 D1 DE 68929309D1
Authority
DE
Germany
Prior art keywords
curl
reduce
techniques
stereolithographic
distortion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE68929309T
Other languages
English (en)
Other versions
DE68929309T2 (de
Inventor
Charles William Hull
Charles William Lewis
Raymond Samuel Freed
Stuart Thomas Spence
Wayne Allan Vinson
Dennis Rollette Smalley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3D Systems Inc
Original Assignee
3D Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3D Systems Inc filed Critical 3D Systems Inc
Priority claimed from US07/339,246 external-priority patent/US5104592A/en
Publication of DE68929309D1 publication Critical patent/DE68929309D1/de
Application granted granted Critical
Publication of DE68929309T2 publication Critical patent/DE68929309T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/70Microphotolithographic exposure; Apparatus therefor
    • G03F7/704162.5D lithography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10Processes of additive manufacturing
    • B29C64/106Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B29C64/135Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/40Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00Processes of additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20Post-treatment, e.g. curing, coating or polishing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00Data acquisition or data processing for additive manufacturing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44BMACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B1/00Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
    • B44B1/006Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models using computer control means
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/0037Production of three-dimensional images
DE68929309T 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens Expired - Fee Related DE68929309T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18282388A 1988-04-18 1988-04-18
US07/339,246 US5104592A (en) 1988-04-18 1989-04-17 Method of and apparatus for production of three-dimensional objects by stereolithography with reduced curl

Publications (2)

Publication Number Publication Date
DE68929309D1 true DE68929309D1 (de) 2001-08-02
DE68929309T2 DE68929309T2 (de) 2002-05-02

Family

ID=26878455

Family Applications (3)

Application Number Title Priority Date Filing Date
DE68929309T Expired - Fee Related DE68929309T2 (de) 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens
DE68927908T Expired - Lifetime DE68927908T2 (de) 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens
DE0362982T Pending DE362982T1 (de) 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens.

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE68927908T Expired - Lifetime DE68927908T2 (de) 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens
DE0362982T Pending DE362982T1 (de) 1988-04-18 1989-04-17 Verringerung des stereolithographischen Verbiegens.

Country Status (9)

Country Link
US (1) US5273691A (de)
EP (1) EP0362982B1 (de)
JP (1) JP3443365B2 (de)
KR (1) KR100257033B1 (de)
AT (2) ATE202517T1 (de)
CA (1) CA1339750C (de)
DE (3) DE68929309T2 (de)
HK (2) HK1001675A1 (de)
WO (1) WO1989010801A1 (de)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772947A (en) * 1988-04-18 1998-06-30 3D Systems Inc Stereolithographic curl reduction
JPH07113912B2 (ja) * 1991-05-31 1995-12-06 富士ゼロックス株式会社 分散型情報処理システムのデバッグ方式
DE4134265C2 (de) * 1991-10-16 1993-11-25 Eos Electro Optical Syst Vorrichtung und Verfahren zur Herstellung eines dreidimensionalen Objekts mittels Stereographie
DE4233812C1 (de) * 1992-10-07 1993-11-04 Eos Electro Optical Syst Verfahren und vorrichtung zum herstellen von dreidimensionalen objekten
JP3218769B2 (ja) * 1993-02-01 2001-10-15 ソニー株式会社 光学的造形方法
US5296335A (en) 1993-02-22 1994-03-22 E-Systems, Inc. Method for manufacturing fiber-reinforced parts utilizing stereolithography tooling
DE4309524C2 (de) * 1993-03-24 1998-05-20 Eos Electro Optical Syst Verfahren zum Herstellen eines dreidimensionalen Objekts
AU684546B2 (en) * 1993-09-10 1997-12-18 University Of Queensland, The Stereolithographic anatomical modelling process
US5943235A (en) * 1995-09-27 1999-08-24 3D Systems, Inc. Rapid prototyping system and method with support region data processing
ATE223300T1 (de) * 1995-09-27 2002-09-15 3D Systems Inc Formungsverfahren durch selektiven materialabsatz und vorrichtung zur formung von dreidimensionalen gegenständen mit stützstruktur
US6270335B2 (en) 1995-09-27 2001-08-07 3D Systems, Inc. Selective deposition modeling method and apparatus for forming three-dimensional objects and supports
US5783136A (en) * 1996-09-09 1998-07-21 Ford Global Technologies, Inc. Method of preparing a stereolithographically produced prototype for experimental stress analysis
US6007318A (en) 1996-12-20 1999-12-28 Z Corporation Method and apparatus for prototyping a three-dimensional object
US7037382B2 (en) 1996-12-20 2006-05-02 Z Corporation Three-dimensional printer
US6051179A (en) * 1997-03-19 2000-04-18 Replicator Systems, Inc. Apparatus and method for production of three-dimensional models by spatial light modulator
CA2572786A1 (en) 1997-04-04 1998-10-15 University Of Southern California Method for electrochemical fabrication including etching to remove flash
US6696221B1 (en) 1997-05-19 2004-02-24 Day International, Inc. Printing plate and method of making using digital imaging photopolymerization
DE19729770C1 (de) * 1997-07-11 1998-11-05 Daniel Graf Verfahren zum Erzeugen beliebiger metallischer Körper durch schichtweisen Aufbau der Geometrie und Laserbearbeitung der Schichten
US6207097B1 (en) 1998-02-18 2001-03-27 Norma Jean Iverson Method for manufacturing physical objects using precision stereolithography
US6267919B1 (en) 1998-02-19 2001-07-31 Nissan Motor Co., Ltd. Method of producing a three-dimensional object
US7418993B2 (en) * 1998-11-20 2008-09-02 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6932145B2 (en) 1998-11-20 2005-08-23 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6399010B1 (en) * 1999-02-08 2002-06-04 3D Systems, Inc. Method and apparatus for stereolithographically forming three dimensional objects with reduced distortion
GB9919511D0 (en) * 1999-08-19 1999-10-20 British Aerospace Stereolithography
JP4624626B2 (ja) 1999-11-05 2011-02-02 ズィー コーポレイション 材料システム及び3次元印刷法
US6558606B1 (en) * 2000-01-28 2003-05-06 3D Systems, Inc. Stereolithographic process of making a three-dimensional object
US20030207959A1 (en) 2000-03-13 2003-11-06 Eduardo Napadensky Compositions and methods for use in three dimensional model printing
US8481241B2 (en) 2000-03-13 2013-07-09 Stratasys Ltd. Compositions and methods for use in three dimensional model printing
US7300619B2 (en) 2000-03-13 2007-11-27 Objet Geometries Ltd. Compositions and methods for use in three dimensional model printing
US6699424B2 (en) 2001-06-29 2004-03-02 3D Systems, Inc. Method for forming three-dimensional objects
US9614266B2 (en) 2001-12-03 2017-04-04 Microfabrica Inc. Miniature RF and microwave components and methods for fabricating such components
AU2002360464A1 (en) 2001-12-03 2003-06-17 Memgen Corporation Miniature rf and microwave components and methods for fabricating such components
US8613846B2 (en) 2003-02-04 2013-12-24 Microfabrica Inc. Multi-layer, multi-material fabrication methods for producing micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties
US10416192B2 (en) 2003-02-04 2019-09-17 Microfabrica Inc. Cantilever microprobes for contacting electronic components
WO2004101857A2 (en) * 2003-05-07 2004-11-25 Microfabrica Inc. Methods and apparatus for forming multi-layer structures using adhered masks
US10297421B1 (en) 2003-05-07 2019-05-21 Microfabrica Inc. Plasma etching of dielectric sacrificial material from reentrant multi-layer metal structures
US9671429B2 (en) 2003-05-07 2017-06-06 University Of Southern California Multi-layer, multi-material micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties
US7291002B2 (en) 2003-05-23 2007-11-06 Z Corporation Apparatus and methods for 3D printing
US10641792B2 (en) 2003-12-31 2020-05-05 University Of Southern California Multi-layer, multi-material micro-scale and millimeter-scale devices with enhanced electrical and/or mechanical properties
US7261542B2 (en) * 2004-03-18 2007-08-28 Desktop Factory, Inc. Apparatus for three dimensional printing using image layers
US20050242473A1 (en) * 2004-04-28 2005-11-03 3D Systems, Inc. Uniform thermal distribution imaging
US7547978B2 (en) * 2004-06-14 2009-06-16 Micron Technology, Inc. Underfill and encapsulation of semiconductor assemblies with materials having differing properties
US7235431B2 (en) 2004-09-02 2007-06-26 Micron Technology, Inc. Methods for packaging a plurality of semiconductor dice using a flowable dielectric material
US7440398B2 (en) 2004-11-29 2008-10-21 Honeywell International Inc. Fault tolerant communication apparatus
US7828022B2 (en) 2006-05-26 2010-11-09 Z Corporation Apparatus and methods for handling materials in a 3-D printer
WO2008073297A2 (en) 2006-12-08 2008-06-19 Z Corporation Three dimensional printing material system and method using peroxide cure
CN101616785B (zh) 2007-01-10 2014-01-08 3D系统公司 具有改进的颜色、制品性能和易用性的三维印刷材料体系
US7968626B2 (en) 2007-02-22 2011-06-28 Z Corporation Three dimensional printing material system and method using plasticizer-assisted sintering
US7923298B2 (en) 2007-09-07 2011-04-12 Micron Technology, Inc. Imager die package and methods of packaging an imager die on a temporary carrier
BRPI0923627A2 (pt) 2008-12-22 2016-01-19 Nl Organisate Voor Toegepast Natuurwetenchappelijk Onderzoek Tno método e sistema para produção em camadas de um objeto tangível
US8777602B2 (en) 2008-12-22 2014-07-15 Nederlandse Organisatie Voor Tobgepast-Natuurwetenschappelijk Onderzoek TNO Method and apparatus for layerwise production of a 3D object
US8678805B2 (en) 2008-12-22 2014-03-25 Dsm Ip Assets Bv System and method for layerwise production of a tangible object
GB201016169D0 (en) 2010-09-27 2010-11-10 Materialise Nv Method for reducing differential shrinkage in stereolithography
US8460451B2 (en) 2011-02-23 2013-06-11 3D Systems, Inc. Support material and applications thereof
US9394441B2 (en) 2011-03-09 2016-07-19 3D Systems, Inc. Build material and applications thereof
US9157007B2 (en) 2011-03-09 2015-10-13 3D Systems, Incorporated Build material and applications thereof
EP2726264B1 (de) * 2011-06-28 2016-11-23 Global Filtration Systems, A DBA of Gulf Filtration Systems Inc. Vorrichtung zur bildung dreidimensionaler gegenstände mittels eines ultravioletten diodenlasers
DE102014215061A1 (de) * 2014-07-31 2016-02-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Mikromechanische Komponente und Verfahren zu ihrer Herstellung
JP6374271B2 (ja) * 2014-08-28 2018-08-15 ローランドディー.ジー.株式会社 3次元造形装置
AT518101B1 (de) * 2015-12-17 2018-05-15 Stadlmann Klaus Verfahren zum Erzeugen eines dreidimensionalen Gegenstands
US11616302B2 (en) 2018-01-15 2023-03-28 Rogers Corporation Dielectric resonator antenna having first and second dielectric portions
CN110815812A (zh) * 2018-08-08 2020-02-21 严铜 多喷头3d打印机并行打印的方法
US11552390B2 (en) 2018-09-11 2023-01-10 Rogers Corporation Dielectric resonator antenna system
US11262383B1 (en) 2018-09-26 2022-03-01 Microfabrica Inc. Probes having improved mechanical and/or electrical properties for making contact between electronic circuit elements and methods for making
TWI820237B (zh) 2018-10-18 2023-11-01 美商羅傑斯公司 聚合物結構、其立體光刻製造方法以及包含該聚合物結構之電子裝置
GB2594171A (en) 2018-12-04 2021-10-20 Rogers Corp Dielectric electromagnetic structure and method of making the same
JP2022536259A (ja) 2019-05-30 2022-08-15 ロジャーズ・コーポレイション ステレオリソグラフィ用光硬化性組成物、その組成物を使用するステレオリソグラフィ法、そのステレオリソグラフィ法によって形成されたポリマーコンポーネント、及びそのポリマーコンポーネントを含むデバイス
CN110394985B (zh) * 2019-06-21 2021-08-20 南京大学 一种利用Taylor喷射效应构造双层液锥进行三维连续分子自组装的装置及其方法
CN110624764B (zh) * 2019-10-11 2021-02-26 张盛女 毛笔上胶装置
US11153556B1 (en) 2020-03-31 2021-10-19 Toyota Motor Engineering & Manufacturing North America, Inc. Volumetric accessing of a volumetric display
US11482790B2 (en) 2020-04-08 2022-10-25 Rogers Corporation Dielectric lens and electromagnetic device with same
CN115468674A (zh) * 2021-06-11 2022-12-13 三赢科技(深圳)有限公司 胶水回温装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2775758A (en) * 1951-05-25 1956-12-25 Munz Otto John Photo-glyph recording
US4139654A (en) * 1975-07-28 1979-02-13 Murfin Incorporated Medallion-like articles, lamp lenses and method for their manufacture
US4575330A (en) * 1984-08-08 1986-03-11 Uvp, Inc. Apparatus for production of three-dimensional objects by stereolithography
JPS61116320A (ja) * 1984-11-09 1986-06-03 Fujitsu Ltd 立体形状形成装置
JPS61116321A (ja) * 1984-11-09 1986-06-03 Fujitsu Ltd 立体形状形成装置
IL84936A (en) * 1987-12-23 1997-02-18 Cubital Ltd Three-dimensional modelling apparatus
ES2063737T3 (es) * 1986-06-03 1995-01-16 Cubital Ltd Aparato y metodo para modelizacion tridimensional.
JPH0675925B2 (ja) * 1986-12-10 1994-09-28 富士通株式会社 立体形状形成装置
US4801477A (en) * 1987-09-29 1989-01-31 Fudim Efrem V Method and apparatus for production of three-dimensional objects by photosolidification
US4752498A (en) * 1987-03-02 1988-06-21 Fudim Efrem V Method and apparatus for production of three-dimensional objects by photosolidification
US4945032A (en) * 1988-03-31 1990-07-31 Desoto, Inc. Stereolithography using repeated exposures to increase strength and reduce distortion
US5137662A (en) * 1988-11-08 1992-08-11 3-D Systems, Inc. Method and apparatus for production of three-dimensional objects by stereolithography
US5015424A (en) * 1988-04-18 1991-05-14 3D Systems, Inc. Methods and apparatus for production of three-dimensional objects by stereolithography
US5059359A (en) * 1988-04-18 1991-10-22 3 D Systems, Inc. Methods and apparatus for production of three-dimensional objects by stereolithography

Also Published As

Publication number Publication date
KR100257033B1 (ko) 2000-06-01
ATE202517T1 (de) 2001-07-15
US5273691A (en) 1993-12-28
HK1001675A1 (en) 1998-07-03
DE68927908D1 (de) 1997-04-30
EP0362982A3 (de) 1991-10-30
EP0362982A2 (de) 1990-04-11
HK1004856A1 (en) 1998-12-11
ATE150693T1 (de) 1997-04-15
DE362982T1 (de) 1996-06-27
JP3443365B2 (ja) 2003-09-02
EP0362982B1 (de) 1997-03-26
WO1989010801A1 (en) 1989-11-16
DE68927908T2 (de) 1997-09-25
JP2000000893A (ja) 2000-01-07
KR900700191A (ko) 1990-08-11
DE68929309T2 (de) 2002-05-02
CA1339750C (en) 1998-03-17

Similar Documents

Publication Publication Date Title
ATE202517T1 (de) Verringerung des stereolithographischen verbiegens
US4575330B1 (de)
ATE135622T1 (de) Träger für stereolithographie
ATE154778T1 (de) Stereolithografische cad/cam-datenkonversion
ATE154541T1 (de) Verringerung der verformung von stereolithografischen teilen durch isolierung der spannungen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee