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Fused filament fabrication using multi-segment filament

  • US 10,611,098 B2
  • Filed: 01/17/2015
  • Issued: 04/07/2020
  • Est. Priority Date: 01/17/2014
  • Status: Active Grant
First Claim
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1. An article comprising a thermoplastic filament adapted for a fused filament fabrication (FFF) printer, the filament comprising:

  • a plurality of segments, each of the segments comprising a thermoplastic polymer;

    wherein for each pair of adjacent segments, one of the adjacent segments comprises a polymer matrix without functional materials being present, the other of the adjacent segments comprises a polymer with functional materials being present, the functional materials being one or more of electrically conductive materials or semiconductive materials;

    wherein the plurality of segments are arranged in a specified order in the filament to provide a synchronized pattern of printing when the filament is printed with a fused filament fabrication (FFF) printer to form a three-dimensional structure comprising electronic circuitry formed from the functional materials.

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