Boots – shoes – and leggings
Patent
1994-01-18
1995-03-28
Envall, Jr., Roy N.
Boots, shoes, and leggings
395119, 264 22, 36447424, G06F 1546
Patent
active
054023513
ABSTRACT:
Disclosed are methods and apparatus for fabricating a three-dimensional object in accordance with a computer-generated definition of the object that is stored within a memory. A method includes the steps of (a) evaluating the stored definition of the object to locate any un-supported features of the object; in response to locating an un-supported feature, (b) defining a support structure for the un-supported feature; (c) generating a fabrication tool movement list expressive of movements required by a fabrication tool to fabricate the object and any defined support structures; and (d) translating the fabrication tool in accordance with the generated fabrication tool movement list to fabricate the object and any defined support structures. The step of translating includes the steps of, generating a feedback signal that is indicative of at least one characteristic of a most recently fabricated portion of the object; and monitoring the feedback signal to detect a deviation of at least a location of the most recently fabricated portion of the object from a corresponding location as expressed in the associated portion of the fabrication tool movement list. Also disclosed are methods and apparatus for anti-aliasing aliased surface features of the object, representing the object definition in a vector format, generating a bit-mapped representation of the object, and an analysis of the definition of the object to identify and subsequently compensate for a region of the object that has a potential to retain heat during fabrication.
REFERENCES:
patent: 3046178 (1962-07-01), Tupper
patent: 3206899 (1965-09-01), Wright
patent: 4564410 (1986-01-01), Clitheros et al.
patent: 4575330 (1986-03-01), Hull
patent: 4665492 (1987-05-01), Masters
patent: 4724302 (1988-02-01), Penney et al.
patent: 4752352 (1988-06-01), Feygin
patent: 4752498 (1988-06-01), Fudium
patent: 4801477 (1989-01-01), Fudium
patent: 4844144 (1989-07-01), Murphy et al.
patent: 4857694 (1989-08-01), Doyle et al.
patent: 4890235 (1989-12-01), Reger et al.
patent: 4915757 (1990-04-01), Rando
patent: 4961154 (1990-10-01), Pomerantz et al.
patent: 5031120 (1991-07-01), Pomerantz et al.
patent: 5121329 (1992-06-01), Crump
patent: 5134569 (1992-07-01), Masters
patent: 5141680 (1992-08-01), Almquist et al.
patent: 5209878 (1993-05-01), Smalley et al.
patent: 5216616 (1993-06-01), Mastens
patent: 5256340 (1993-10-01), Allison et al.
"Shape Melting Technology" by Thomas E. Doyle et al. p. 55, Jun. 4-5, 1990, The National Conference on Rapid Prototyping.
"Laser Modeling Reduces Engineering Time" by D. A. Belforte, Laser Focus World, Jun. 1989, pp. 103-108.
"3D Modeler Models in Minutes" Product Brochure of Stratasys, Inc. Minneapolis, Min. 1990.
Kodama, "Automatic method for fabricating a three-dimensional plastic model with photo-hardening polymer", Rev. Sci. Instrum., vol. 52, No. 11, Nov. 1991, pp. 1770-1773.
Batchelder John S.
Curtis Huntington W.
Goodman Douglas S.
Gracer Franklin
Jackson Robert R.
Envall Jr. Roy N.
Garland Steven R.
International Business Machines - Corporation
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