Apparatus And Method For Producing Objects Utilizing Three-Dimensional Printing

摘要

A method and apparatus (10) for the fabrication of an article made using a three-dimensional printing process. The invention includes depositing material from a print head (32) onto a build plate (36) located in a build chamber (26) to form an article, heating ambient air in the build chamber (26) to a first temperature which acts as a proper sink temperature for cooling of the article, and heating the build plate (36) to a second temperature which is higher than the first temperature. The first and second temperatures are controlled to minimize warping and thermal stress of the article.