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Method of forming objects from thermosensitive composition

  • US 6,214,276 B1
  • Filed: 05/18/1999
  • Issued: 04/10/2001
  • Est. Priority Date: 05/18/1999
  • Status: Active Grant
First Claim
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1. A method for forming a three dimensional object comprising:

  • (a) providing a volume of a thermosensitive resin, the resin having a rate of solidification which increases with temperature;

    (b) rapidly raising a temperature of at least one interior spot in the volume of thermosensitive resin to a temperature sufficient to cause the thermosensitive resin to solidify by focussing a beam of radiation on the spot wherein the increased temperature of the thermosensitive resin in the vicinity of the spot causes the thermosensitive resin to solidify in the vicinity of the spot;

    (c) building up a three-dimensional object by repeating the step of raising a temperature of an interior spot in the volume of thermosensitive resin for different spots; and

    , (d) removing unsolidified resin from the three-dimensional object.

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