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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method employing sequential two-dimensional geometry for producing shells for fabrication by a rapid prototyping system

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G06F-019/00    G06F-017/50    G06F-017/10   
미국특허분류(USC) 364/46826 ; 364/47424 ; 395/120
출원번호 US-0322401 (1994-10-12)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 75  인용 특허 : 26
초록
▼

Beginning with a CAD specification of an object, the method and apparatus of the invention reduces the overall time to produce a shell of the object with a rapid prototyping machine. The reduction in time is achieved by interleaving the computation and the building tasks and by not requiring an explicit evaluation of a shell of the solid at the outset. The method is shown to operate with STL data, or with other CAD data, directly, and can also be employed to create non-planar objects, such as models of sheet metal parts that are represented only as surfa...

대표
청구항
▼

A method for operating a system to fabricate a three dimensional object from a computer-generated specification of a solid S, the computer-generated specification of the solid S being oriented in an xyz-coordinate frame and having a height along the z-axis, comprising the steps of: (a) preprocessing the computer-generated specification of S, the step of preprocessing including the steps of, for each face fi lying on a boundary of the solid S, constructing a bounding z-axis interval Ii=[zimin, Zmax]; for all i, constructing an enlarged interval Ii+=[zimin...

이 특허에 인용된 특허 (26)

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  22. Pomerantz Itzchak (18 Golomb Street Kefar Sava ILX) Gilad Shalev (22a Anshei Bereshit Street Hod Hasharon ILX) Dollberg Yehoshua (10 Shtruck Street Tel Aviv ILX) Ben-Ezra Barry (7 Simtat Arougot Rama. Three dimensional modelling apparatus. USP1991075031120.
  23. Pomerantz Itzchak (Kefar Sava ILX) Cohen-Sabban Joseph (Yahud ILX) Bieber Avigdor (Raanana ILX) Kamir Josef (Netanya ILX) Katz Mathew (Haifa ILX) Nagler Michael (Tel Aviv ILX). Three dimensional modelling apparatus. USP1990104961154.
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  26. Valavaara Viljo (5484 Tomken Road ; #14 Mississauga ; Ontario CAX L4W 2Z6). Topology fabrication apparatus. USP1988064749347.

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