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Gas flow in three-dimensional printing

  • US 10,661,341 B2
  • Filed: 11/03/2017
  • Issued: 05/26/2020
  • Est. Priority Date: 11/07/2016
  • Status: Active Grant
First Claim
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1. A system for printing a three-dimensional object, the system comprising:

  • an energy source configured to generate an energy beam for transforming a pre-transformed material to a transformed material as at least a portion of the three-dimensional object;

    a platform configured to support the three-dimensional object during printing; and

    an enclosure configured to enclose at least a portion the platform, which enclosure comprises;

    (i) a first wall;

    (ii) at least one window configured to allow the energy beam to pass through;

    (iii) a region recessed in the first wall, which region comprises the at least one window; and

    (iv) a second wall that at least partially separates the region from the first wall, which at least one window and second wall at least partially define a volume of the region.

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