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Continuous liquid interphase printing

  • US 9,205,601 B2
  • Filed: 12/12/2014
  • Issued: 12/08/2015
  • Est. Priority Date: 02/12/2013
  • Status: Active Grant
First Claim
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1. A method of forming a three-dimensional object, comprising:

  • providing a carrier and an optically transparent member having a build surface, said carrier and said build surface defining a build region therebetween;

    filling said build region with a polymerizable liquid;

    irradiating said build region through said optically transparent member to form a solid polymer from said polymerizable liquid while concurrently advancing said carrier away from said build surface to form said three-dimensional object from said solid polymer, while also concurrently;

    (i) continuously maintaining a dead zone of polymerizable liquid in contact with said build surface, and(ii) continuously maintaining a gradient of polymerization zone between said dead zone and said solid polymer and in contact with each thereof, said gradient of polymerization zone comprising said polymerizable liquid in partially cured form.

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