Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor
Patent
1996-12-16
1999-10-12
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Stereolithographic shaping from liquid precursor
264308, 36446827, 4251744, B29C 3508, B29C 4102
Patent
active
059650796
ABSTRACT:
An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions. In another method, a capability for automatically inserting vents an drains into a three-dimensional object representation is provided.
REFERENCES:
patent: 2775758 (1956-12-01), Munz
patent: 4575330 (1986-03-01), Hull
patent: 4603431 (1986-07-01), Grover et al.
patent: 4665492 (1987-05-01), Masters
patent: 4752498 (1988-06-01), Fudim
patent: 4809201 (1989-02-01), Keklak
patent: 4844144 (1989-07-01), Murphy et al.
patent: 4863538 (1989-09-01), Deckard
patent: 4915757 (1990-04-01), Rando
patent: 4930092 (1990-05-01), Reilly
patent: 4938816 (1990-07-01), Beaman et al.
patent: 4961154 (1990-10-01), Pomerantz et al.
patent: 5015424 (1991-05-01), Smalley
patent: 5121333 (1992-06-01), Riley et al.
patent: 5182055 (1993-01-01), Allison et al.
patent: 5182715 (1993-01-01), Vorgitch et al.
patent: 5256340 (1993-10-01), Allison et al.
patent: 5278949 (1994-01-01), Thayer
patent: 5282143 (1994-01-01), Shirai et al.
patent: 5355318 (1994-10-01), Dionnet et al.
Requicha, "Solid Modeling: A Historical Summary and Contemporary Assessment," IEEE Computer Graphics and Applications, Mar. 1982, pp. 9-24; Kodama, "Automatic Method for Fabricating a Three-Dimensional Plastic Model with Photo-Hardening Polymer," Rev. Sci. Instrum. 52 (11), Nov. 1981, pp. 1770-1773.
Herbert, "Solid Object Generation," Journal of Applied Photographic Enginering, vol. 8, No. 4, Aug. 1982, pp. 185-188.
Fudim, "A New Method of Three-Dimensional Micromachining," Mechanical Engineering, Sep. 1985, pp. 54-59.
Fudim, "Sculpting Parts with Light," Machine Design, Mar. 1986, pp. 102-106.
Herbert, "A Review of 3D Solid Object Generation," Journal of Imaging Technology, vol. 15, No. 4, Aug. 1989, pp. 186-190.
3-D Systems, Inc.
Tentoni Leo B.
LandOfFree
Method and apparatus for making a three-dimensional object by st does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for making a three-dimensional object by st, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making a three-dimensional object by st will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-649145