Surface resolution in three-dimensional objects by inclusion of thin fill layers
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United States of America Patent
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May 11, 1993
Grant Date -
N/A
app pub date -
Oct 30, 1990
filing date -
Oct 30, 1990
priority date (Note) -
Expired
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Abstract
Methods and apparatus for reducing surface discontinuities, resulting from the formation of a three-dimensional object out of a plurality of stacked layers, during layer by layer stereolithographic formation of the three-dimensional object. The discontinuities between layers are reduced by utilizing formation and solidification of thin fill layers near the edges of thicker structural layers or by utilizing surface tension effects to smooth discontinuities between the structural layers by formation of meniscuses of building material and solidifying the meniscuses.
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