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Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data

  • US 6,175,422 B1
  • Filed: 07/31/1992
  • Issued: 01/16/2001
  • Est. Priority Date: 01/31/1991
  • Status: Expired due to Term
First Claim
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1. A computer-controlled apparatus for manufacturing of three-dimensional objects, comprising:

  • a first dispenser operable to dispense a layer of a first material on a target surface and for dispensing said layer of said first material at only selected locations of said target surface, said selected locations corresponding to a cross-section of a three-dimensional object, wherein said first material is dispensed in liquid form and hardens once so dispensed to form a hardened first material;

    a second dispenser for dispensing a second material over said layer of said hardened first material to encapsulate said hardened first material to form an encapsulating second material;

    a planing apparatus for planing the surface of said encapsulating second material, of said hardened first material wherein said first dispenser dispenses another layer of said first material onto said planned uppermost surface at selected locations corresponding to another cross-section of said three-dimensional object.

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