Title:
【発明の名称】統合型ステレオリソグラフィー
Document Type and Number:
Japanese Patent JPH04506044
Kind Code:
A
Abstract:
An improved stereolithographic apparatus and method is described. In one embodiment, the improvement comprises immersing at least a portion of a part in a volume of a liquid solvent in a vapor degreaser while subjecting the portion to ultrasonic agitation to substantially remove excess resin. Several examples of solvents are provided, including ethanol, and Freon TMS. In a second embodiment, the improvement comprises building the part on a layer of liquid resin supported by a volume of a dense, immiscible, and UV transparent intermediate liquid, and integratably immersing at least a portion of the built part in the intermediate liquid, and then either subjecting the immersed portion to ultrasonic agitation to substantially remove excess resin, or subjecting the immersed portion to UV light. Several examples of intermediate liquids are provided, including perfluorinated fluids, such as Fluorinert FC-40, and water-based salt solutions, such as solutions of magnesium sulfate or sodium chloride in water.
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Inventors:
Rayden, Richard N.
Arm Kist, Thomas A.
Lewis, Mark A.
Nguyen, Hop Dee.
Arm Kist, Thomas A.
Lewis, Mark A.
Nguyen, Hop Dee.
Application Number:
JP50881090A
Publication Date:
October 22, 1992
Filing Date:
June 01, 1990
Export Citation:
Assignee:
3D, Systems, Incorporated
International Classes:
B29C67/00; B29C35/08; B29C71/00; B29C71/04; B29K105/24; (IPC1-7): B29C35/08; B29C67/00; B29K105/24
Attorney, Agent or Firm:
Seiji Yanagida (1 person outside)