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Apparatus for production of three-dimensional objects by stereolithography

  • US 10,086,566 B2
  • Filed: 01/02/2015
  • Issued: 10/02/2018
  • Est. Priority Date: 01/02/2014
  • Status: Active Grant
First Claim
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1. A system for making a three-dimensional physical object comprising:

  • a frame;

    a build platform coupled to the frame, wherein the build platform is movable along a z-axis and has a work surface disposed thereon;

    a vat mounted within the frame and situated so that the work surface of the build platform may be lowered within the vat, wherein the vat has sidewalls and a radiation permeable flat bottom, the vat configured to hold a photo-curable polymer;

    a radiation source, wherein the radiation source is capable of movement along an x-axis and a y-axis, wherein the radiation source is a laser and the radiation permeable flat bottom of the vat is laser transparent, the laser having a laser housing lined with roughened cardboard soaked with high heat flat black low vapor paint for reducing light reflections surrounding a collimated beam;

    at least one stepper motor for moving the radiation source, the vat, and/or the build platform;

    a power source;

    at least one data reader device or computer communication device; and

    a microcontroller in communication with the at least one stepper motor and at least one of a data reader device or computer communication device.

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