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Solid imaging apparatus with improved part separation from the image plate

  • US 9,486,964 B2
  • Filed: 12/07/2015
  • Issued: 11/08/2016
  • Est. Priority Date: 05/03/2012
  • Status: Active Grant
First Claim
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1. A replenishing device in an additive manufacturing system, the device comprising:

  • an image plate with a top image plate surface and a bottom plate surface;

    a reservoir to hold liquid resin located above the image plate;

    a cure inhibiting layer located between an area on the top image plate surface and the resin located within the reservoir; and

    a sweeper that extends to a top of the cure inhibiting layer to be in contact with the cure inhibiting layer and horizontally across at least a portion of the cure inhibiting layer;

    wherein the sweeper is positioned across at least a portion of a side of the cure inhibiting layer to retard a flow of liquid resin across the cure inhibiting layer by providing a physical barrier to the liquid resin to expose the cure inhibiting layer to a cure inhibitor source, agitate the liquid resin within the reservoir, and remove debris from cure inhibiting layer.

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