3-D model making

  • US 5,740,051 A
  • Filed: 11/08/1995
  • Issued: 04/14/1998
  • Est. Priority Date: 01/25/1991
  • Status: Expired due to Term
First Claim
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1. A method of producing a 3-D model by forming a contiguous plurality of parallel layers of modeling material on a platform comprising the steps of:

  • a) producing a plurality of bead producing drops of the modeling material for deposition from a drop on demand jet at desired locations to solidify into beads to form at least a portion of a layer of said parallel layers;

    b) controlling the locations of deposition by simultaneously coordinating relative movement in the X-Y coordinates for a support arrangement of said jet to produce vectors, defined by overlapping pluralities of the beads, in any and all directions required to produce, by vector plotting, at least a desired outer surface defining wall;

    c) timing the production of said plurality of beads, at least, when producing said desired outer surface defining wall to overlap previously deposited beads to a desired extent and to meld with previously deposited beads to produce said vectors, thereby forming said desired outer surface defining wall with a desired surface finish;

    d) adjusting the distance of the location of drop production to the location of drop deposition following formation of said layer in preparation for the formation of a subsequent said layer; and

    e) repeating steps a), b), c), and d) as required to complete the model.

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