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Apparatus for three dimensional printing using imaged layers

  • US 20080036117A1
  • Filed: 08/08/2007
  • Published: 02/14/2008
  • Est. Priority Date: 03/18/2004
  • Status: Abandoned Application
First Claim
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1. A method of building an object from a plurality of cross sectional layers with a three-dimensional printer (3DP), the method comprising:

  • sintering at least one first layer of sinterable powder with a first energy density level;

    partially sintering at least one second layer of sinterable powder with a second energy density level less than the first energy density level; and

    sintering at least one third layer of sinterable powder with a third energy density level greater than the second energy density level to form one or more of the plurality of cross sectional layers.

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