20240025123. PART QUALITY MONITORING IN A STEREOLITHOGRAPHIC ADDITIVE MANUFACTURING SYSTEM simplified abstract (Stratasys, Inc.)

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PART QUALITY MONITORING IN A STEREOLITHOGRAPHIC ADDITIVE MANUFACTURING SYSTEM

Organization Name

Stratasys, Inc.

Inventor(s)

J. Samuel Batchelder of Woodinville WA (US)

PART QUALITY MONITORING IN A STEREOLITHOGRAPHIC ADDITIVE MANUFACTURING SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240025123 titled 'PART QUALITY MONITORING IN A STEREOLITHOGRAPHIC ADDITIVE MANUFACTURING SYSTEM

Simplified Explanation

The abstract describes a method for 3D printing a part in a layer-wise manner using polymerizable liquid. The method involves placing a build platform in a pool of liquid, curing the liquid using electromagnetic radiation to form a printed layer, scanning the build window with monochromatic, polarized light to obtain information about the printed layer, raising the build platform to print the next layer, and modifying the energy imparted into the next layer based on the obtained information. This process is repeated until the part is fully printed.

  • The method involves using polymerizable liquid and electromagnetic radiation to 3D print a part layer by layer.
  • A build platform is placed in a pool of liquid, and the liquid is selectively cured using electromagnetic radiation to form each layer of the part.
  • Monochromatic, polarized light is used to scan the build window and gather information about the printed layer.
  • The build platform is raised to print the next layer, and the energy imparted into the next layer is modified based on the information obtained from the scanning.
  • This process is repeated until the entire part is printed.

Potential applications of this technology:

  • Rapid prototyping: This method allows for the quick and efficient production of prototypes, enabling faster product development cycles.
  • Customized manufacturing: The ability to 3D print parts layer by layer opens up possibilities for customized manufacturing, where each part can be tailored to specific requirements.
  • Medical applications: This technology can be used in the production of customized medical implants, prosthetics, and other medical devices.

Problems solved by this technology:

  • Time and cost efficiency: Layer-wise 3D printing allows for faster production times and reduces material waste compared to traditional manufacturing methods.
  • Design complexity: This method enables the production of intricate and complex designs that may be difficult or impossible to achieve using traditional manufacturing techniques.
  • Customization: The ability to modify the energy imparted into each layer based on real-time information allows for greater control and customization of the printed part.

Benefits of this technology:

  • Faster production times: Layer-wise 3D printing allows for the rapid production of parts, reducing lead times and enabling faster product development.
  • Cost savings: The reduction in material waste and the ability to customize each part can lead to cost savings in manufacturing processes.
  • Design flexibility: This technology enables the production of complex and customized designs, opening up new possibilities for product innovation.


Original Abstract Submitted

a method for 3d printing a part in a layer-wise manner includes providing a pool of polymerizable liquid in a vessel over a build window and positioning a downward-facing build platform in the pool, thereby defining a build region above the build window. the method includes selectively curing a volume of polymerizable liquid in the build region by imparting electromagnetic radiation through the build window to form a printed layer of the part adhered to the build platform and scanning at least a portion of the build window with monochromatic, polarized light along a plane of incidence. the method includes measuring a change in intensity and polarity of the light to obtain information about the printed layer. the method includes raising the build platform to a height of a next layer to be printed and modifying the electromagnetic energy imparted into the next layer based upon the obtained information to print a next layer. the imparting, scanning, measuring, raising and modifying steps are repeated until the part is printed.

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