×

Method for producing a three-dimensional object and stereolithography machine employing said method

  • US 9,446,557 B2
  • Filed: 01/18/2012
  • Issued: 09/20/2016
  • Est. Priority Date: 01/18/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method for producing a three-dimensional object in layers by means of a stereolithography machine of the type comprising:

  • a container for containing a liquid substance suited to be solidified through exposure to predefined radiation;

    means for emitting said predefined radiation, suited to selectively irradiate a layer of said liquid substance having a predefined thickness and arranged adjacent to the bottom of said container in order to solidify it;

    actuator means suited to move said solidified layer with respect to said bottom at least according to a direction perpendicular to said bottom;

    said method comprising the following operations;

    selectively irradiating said layer of liquid substance in such a way as to obtain said solidified layer;

    separating said solidified layer from said bottom through a mutual separation movement having a predefined extent, wherein said separation movement comprises a plurality of separation shifts for corresponding predefined lengths, spaced by corresponding intermediate stops for corresponding predefined time intervals, said intermediate stops being carried out before said solidified layer has become completely detached from said bottom.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×