Process of and apparatus for making a three-dimensional article
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United States of America Patent
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Dec 23, 1997
Grant Date -
N/A
app pub date -
Apr 26, 1996
filing date -
Apr 26, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for making a three-dimensional article based upon article defining data may be used to make a mold for the article and molding the article from the mold. Alternately, the apparatus may be used to make articles having filled or solid portions. The apparatus preferably includes a base, a processor for defining a mold skin for producing a mold for the three-dimensional article, and a build material dispenser for dispensing build material responsive to the processor to construct the mold skin extending outwardly from the base and defining at least one cavity. Solidifiable fill material is introduced into the cavity to form solid mold portions. The solid mold portions may be separated from the mold skin, and injection molding, for example, used to mold the three-dimensional article. The base preferably includes a thin plastic layer which is penetrable to permit introduction of the solidifiable fill material into the cavity.
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