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Apparatus and method for thermal normalization in three-dimensional article manufacturing

  • US 5,572,431 A
  • Filed: 10/19/1994
  • Issued: 11/05/1996
  • Est. Priority Date: 10/19/1994
  • Status: Expired due to Term
First Claim
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1. An apparatus for making a three-dimensional article based upon article defining data, said apparatus comprising:

  • a platform;

    build material dispensing means positioned adjacent said platform for dispensing solidifiable build material upon said platform to construct the article in successive layers based upon the article defining data and which layers solidify after dispensing; and

    thermal normalization means positioned adjacent said platform for dimensionally normalizing solidified portions of the article during construction thereof by heating, melting, and displacing predetermined solidified portions of dispensed solidified build material at predetermined intervals during construction of the article.

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