×

Method for printing a three-dimensional structure with smooth surfaces

  • US 9,662,837 B2
  • Filed: 05/06/2013
  • Issued: 05/30/2017
  • Est. Priority Date: 05/08/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method for printing a three-dimensional structure with a smooth surface comprising the following steps:

  • depositing multiple droplets of printing material at least partially side by side and one above the other,curing the deposited droplets by, light irradiation to build up a three-dimensional pre-structure in a first step; and

    smoothing at least one surface of the three-dimensional pre-structure by targeted placement of compensation droplets in boundary areas of adjacent deposited droplets and/or near edges of the surface to be smoothed in a second step to build up the three-dimensional structure with a smooth surface;

    wherein the compensation droplets deposited in the second step have a smaller mean diameter than the droplets deposited in the first step, andwherein the compensation droplets deposited in the second step are cured in the second step by light irradiation.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×