Stereolithographic method and apparatus with enhanced control of

Details Stereolithographic method and apparatus with enhanced control of Stereolithographic method and apparatus with enhanced control of

1999-02-08

2000-10-03

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Stereolithographic shaping from liquid precursor

264 401, 425135, 4251744, 425375, 700120, B29C 3508, B29C 4102

Patent

active

061268844

ABSTRACT:
A rapid prototyping and manufacturing (e.g. stereolithography) method and apparatus for producing three-dimensional objects by selectively subjecting a liquid or other fluid-like material to a beam of prescribed stimulation. In a preferred embodiment a source of prescribed stimulation is controlled to reduce or inhibit the production of the prescribed stimulation during at least some periods when the prescribed stimulation is not needed to expose the material. In another preferred embodiment, the source of stimulation is controlled to vary the quantity of prescribed stimulation that is produced and allowed to reach the material. In an additional preferred embodiment control of laser output occurs based on a combination of supplying a regulated amount of voltage to an AOM in conjunction with temporary sensing of laser power and a known desired power to attain. In a further preferred embodiment, a quantity of prescribed stimulation may be set by consideration of desired solidification depths to be used, beam profile characteristics, material properties, and scanning speed limitations for different data types. In a still further preferred embodiment, a transition between selected consecutive exposure vectors is performed by scanning one or more interposed non-exposure vectors with the beam inhibited from reaching the building material.

REFERENCES:
patent: 4575330 (1986-03-01), Hull
patent: 4752352 (1988-06-01), Feygin
patent: 4863538 (1989-09-01), Deckard
patent: 4999143 (1991-03-01), Hull et al.
patent: 5015312 (1991-05-01), Kinzie
patent: 5058988 (1991-10-01), Spence
patent: 5059021 (1991-10-01), Spence et al.
patent: 5076974 (1991-12-01), Modrek et al.
patent: 5104592 (1992-04-01), Hull et al.
patent: 5121329 (1992-06-01), Crump
patent: 5123734 (1992-06-01), Spence et al.
patent: 5133987 (1992-07-01), Spence et al.
patent: 5141680 (1992-08-01), Almquist et al.
patent: 5143663 (1992-09-01), Leyden et al.
patent: 5174931 (1992-12-01), Almquist et al.
patent: 5182056 (1993-01-01), Spence et al.
patent: 5182715 (1993-01-01), Vorgitch et al.
patent: 5184307 (1993-02-01), Hull et al.
patent: 5192469 (1993-03-01), Hull et al.
patent: 5192559 (1993-03-01), Hull et al.
patent: 5204055 (1993-04-01), Sachs et al.
patent: 5209878 (1993-05-01), Smalley et al.
patent: 5234636 (1993-08-01), Hull et al.
patent: 5238639 (1993-08-01), Vinson et al.
patent: 5256340 (1993-10-01), Allison et al.
patent: 5321622 (1994-06-01), Snead et al.
patent: 5597520 (1997-01-01), Smalley et al.
patent: 5840239 (1998-11-01), Partanen et al.
patent: 5902537 (1999-05-01), Almquist et al.
patent: 5902538 (1999-05-01), Kruger et al.
patent: 5943235 (1999-08-01), Earl et al.
patent: 5945058 (1999-08-01), Manners et al.
patent: 5965079 (1999-10-01), Manners
patent: 5999184 (1999-12-01), Smalley et al.
patent: 6001297 (1999-12-01), Partanen et al.
Jacobs, "Rapid Prototyping & Manufacturing: Fundamentals of StereoLithography," Society of Manufacturing Engineers, 1992.
Jacobs, "Stereolithography and other RP&M Technologies," Society of Manufacturing Engineers, 1996.
U.S. Pat. application No. 08/722,335, filed Sep. 27, 1996 by Leyden et al. (now abandoned).
U.S. Pat. application No. 08/855,125, filed May 13, 1997 by Nguyen, et al.
U.S. Pat. application No. 09/061,796, filed Apr. 16, 1998 by Wu, et al.
U.S. Pat. application No. 09/154,967, filed Sep. 17, 1998 by Nguyen, et al.
U.S. Pat. application No. 09/246,416, filed Feb. 8, 1999 by Bishop, et al.
U.S. Pat. application No. 09/246,504, filed Feb. 8, 1999 by Guertin, et al.
U.S. Pat. application No. 09/247,113, filed Feb. 8, 1999 by Chari, et al.
U.S. Pat. application No. 09/247,119, filed Feb. 8, 1999 by Kulkarni, et al.
U.S. Pat. application No. 09/247,120, filed Feb. 8, 1999 by Everett, et al.
U.S. Pat. application No. 09/248,351 filed Feb. 8, 1999 by Nguyen.
U.S. Pat. application No. 09/248,352, filed Feb. 8, 1999 by Manners, et al.
U.S. Pat. application No. 09/484,984, filed Jan. 18, 2000 by Earl, et al.

Affiliated with

Also associated with

Rating

Stereolithographic method and apparatus with enhanced control of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stereolithographic method and apparatus with enhanced control of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stereolithographic method and apparatus with enhanced control of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-191966