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Method and apparatus for making a three-dimensional object by stereolithography

  • US 5,965,079 A
  • Filed: 12/16/1996
  • Issued: 10/12/1999
  • Est. Priority Date: 04/25/1995
  • Status: Expired due to Term
First Claim
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1. A method for automatically inserting a drain or vent in a three-dimensional object representation to derive a modified object representation for subsequent use in constructing a three-dimensional object from a solidified medium, the object comprising at least one object region and at least one non-object region separated by at least one surface of the object, comprising manipulating the representation to insert the drain or vent through at least a portion of the at least one surface so as to form a passage to connect the at least one object region to the at least one non-object region.

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