Surface resolution in three-dimensional objects by inclusion of thin fill layers
US5209878A · kind A · utility
103Cited by
1References
69Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 30, 1990 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Oct 30, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/49019
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.