Plastic and nonmetallic article shaping or treating: processes – Stereolithographic shaping from liquid precursor
Patent
1995-05-15
1997-12-09
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Stereolithographic shaping from liquid precursor
264308, 36446827, 425135, 425145, 425147, 4251744, B29C 3508, B29C 4102, B29C 4136
Patent
active
056957076
ABSTRACT:
Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid, but which is flowable when heated. In one embodiment, a support material is used to fill in portions of layers which are not to be solidified as part of the object, thus providing support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support, or the like, for supporting an object surface from a second surface. In another alternative embodiment, such an apparatus is combined with a conventional stereolithographic apparatus to provide means for forming an object out of conventional stereolithographic materials, but utilizing a normally solid but thermally-flowable support material to provide support to the object, either on a layer-by layer basis, or by building supports such as web supports.
REFERENCES:
patent: 2775758 (1956-12-01), Munz
patent: 4041476 (1977-08-01), Swainson
patent: 4247508 (1981-01-01), Householder
patent: 4575330 (1986-03-01), Hull
patent: 4665492 (1987-05-01), Masters
patent: 4749347 (1988-06-01), Valavaara
patent: 4752498 (1988-06-01), Fudim
patent: 4801477 (1989-01-01), Fudim
patent: 4942060 (1990-07-01), Grossa
patent: 4961154 (1990-10-01), Pomerantz et al.
patent: 4999143 (1991-03-01), Hull et al.
patent: 5031120 (1991-07-01), Pomerantz et al.
patent: 5059266 (1991-10-01), Yamane et al.
patent: 5121329 (1992-06-01), Crump
patent: 5126529 (1992-06-01), Weiss et al.
patent: 5134569 (1992-07-01), Masters
patent: 5136515 (1992-08-01), Helinski
patent: 5140937 (1992-08-01), Yamane et al.
patent: 5141680 (1992-08-01), Almquist et al.
patent: 5216616 (1993-06-01), Masters
patent: 5340433 (1994-08-01), Crump
Wohlers, T. Cadence, Plastic Models in Minutes, pp. 101-104 (Jul. 1990).
Production, No-Mess Modeling in Minutes, p. 16 (Aug. 1990).
Kodama, H. Review of Scientific Instruments, Automated Method for Fabricating a Three-Dimensional Plastic Model with Photohardening Polymer, vol. 52, no. 11, pp. 1770-1773 (Nov. 1981).
Flexible Automation, Stratysys Makes 3D Models in Minutes, pp. 6-7 (Jul. 1990).
Herbert, A. J. Journal of Applied Photographic Engineering, Solid Object Generation, vol. 8, no. 4, pp. 185-188 (Aug. 1992).
Translation Of Japan 3-236,940 (Published Oct. 22,1991).
Almquist Thomas A.
Smalley Dennis R.
3-D Systems, Inc.
Smalley Dennis R.
Tentoni Leo B.
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