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Encoded consumable materials and sensor assemblies for use in additive manufacturing systems

  • US 9,855,679 B2
  • Filed: 01/10/2014
  • Issued: 01/02/2018
  • Est. Priority Date: 11/19/2009
  • Status: Active Grant
First Claim
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1. An encoded filament for use in an additive manufacturing system having an extrusion head, the encoded filament comprising:

  • compositionally, a consumable polymer based material;

    a longitudinal length comprising a varying cross-sectional geometry;

    spaced apart volume-increment markings along the longitudinal length of the encoded filament wherein a distance between the increment markings varies to define segments of the encoded filament having volumes that are substantially the same, wherein the volume-increment markings are configured to be read by an optical sensor of the additive manufacturing system; and

    the cross-sectional geometry configured to be received by a liquefier of the extrusion head for building a three-dimensional model from the consumable material.

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