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Extrusion head for use in extrusion-based layered deposition modeling

  • US 7,625,200 B2
  • Filed: 07/31/2007
  • Issued: 12/01/2009
  • Est. Priority Date: 07/31/2007
  • Status: Active Grant
First Claim
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1. An extrusion head comprising:

  • at least one mounting structure;

    a first liquefier pump secured to the at least one mounting structure;

    a second liquefier pump disposed adjacent to the first liquefier pump;

    a toggle mechanism supported by the at least one mounting structure, and configured to move the second liquefier pump relative to the first liquefier pump along a first axis; and

    a slot engagement mechanism connected in part to the second liquefier pump for defining a range of motion for the second liquefier pump along the first axis, wherein the slot engagement mechanism comprises a slot having a first perimeter and a second perimeter offset along the first axis and an engagement member disposed in the slot.

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