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Light Distribution in 3D-Printed Thermoplastics.

Ina Cheibas1, Valeria Piccioni1, Ena Lloret-Fritschi2

  • 1Department of Architecture, ETH Zürich, Zürich, Switzerland.

3D Printing and Additive Manufacturing
|December 20, 2023
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Summary
This summary is machine-generated.

3D-printed thermoplastic facades can be customized for better daylight distribution and transmission. Vertical printing patterns offer superior light transmission compared to horizontal ones, enhancing building energy efficiency and user comfort.

Keywords:
3D printingdaylightfacadelight distributionlight transmissionpattern

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Area of Science:

  • Materials Science
  • Building Physics
  • Sustainable Architecture

Background:

  • Daylight distribution is crucial for building facades, balancing user comfort and energy efficiency.
  • Optimizing light transmission and distribution is key for sustainable building design.

Purpose of the Study:

  • To investigate the feasibility of 3D-printed thermoplastic materials for improving facade daylighting.
  • To analyze how different geometries and printing patterns affect light distribution and transmission.

Main Methods:

  • Fabrication of 12 unique 3D-printed thermoplastic samples using robotic 3D printing.
  • Physical simulation of seasonal light conditions (spring, summer, winter) using a robotic arm.
  • Comparison with conventional facade materials (polycarbonate, glass) using high dynamic range imaging for luminance analysis.

Main Results:

  • 3D-printed geometries enable customizable diffusive light distribution tailored to specific user needs.
  • Vertical printing patterns demonstrated significantly higher light transmission values than horizontal patterns.
  • High dynamic range imaging provided qualitative characterization of luminance across all samples.

Conclusions:

  • 3D-printed thermoplastics offer a viable solution for creating advanced facade elements with controlled daylighting properties.
  • Facade design can be optimized by selecting appropriate printing patterns (vertical preferred) for enhanced light transmission and energy performance.