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Title:
METHOD FOR FORMING THREE-DIMENSIONAL OBJECT AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3443365
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To perform the automatic designing economically with rapidity and high reliability by providing a step to partially change stored sets of data for defining the solid part of the shape of an object and coverting the solid part into a part consisting of a region where it is cured or a region where it is maintained in an uncured state according to each of exposure levels.
SOLUTION: When a design displayed on the output image screen of a computer is satisfactory, parts are manufactured and when the design needs to be corrected, a change is repeatedly made through the computer. In this case, a pattern for stimulating each of many superposed thin layers 30a, 30b, 30c of a transferable fluid medium 22 is changed partially in a data processing step 25. Further, alteration data for converting the solid part to the part comprising a region where it is cured according to a first exposure level and a region where it is cured according to a second lower exposure level or a region where it is maintained in an uncured state while each of the thin layers 30a, 30b, 30c is initially formed, is created.


Inventors:
Hull, Charles W.
Spence, Stuart T.
Lewis, Charles W.
Vinson, Wayne B.
Wayne, Fred S.
Smalley, Dennis R.
Application Number:
JP1999000166771
Publication Date:
June 20, 2003
Filing Date:
April 17, 1989
Export Citation:
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Assignee:
THREE D SYST INC
International Classes:
B29C35/08; B29C67/00; B44B1/00; G03F7/00; G03F7/20; B29K105/24; (IPC1-7): B29C67/00