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Building with volumetric additive manufacturing

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1117/12.3042390
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0001-5937-6254; Search for: 1ORCID identifier: https://orcid.org/0009-0003-7821-4041; Search for: 2; Search for: 2; Search for: 2; Search for: 2; Search for: 2ORCID identifier: https://orcid.org/0000-0002-4224-8413; Search for: 3ORCID identifier: https://orcid.org/0000-0002-6579-0504; Search for: 2ORCID identifier: https://orcid.org/0000-0002-9344-8810
Affiliation
  1. National Research Council of Canada. Digital Technologies
  2. National Research Council of Canada. Quantum and Nanotechnologies
  3. National Research Council of Canada. Clean Energy Innovation
FormatText, Article
ConferenceAdvanced Fabrication Technologies for Micro/Nano Optics and Photonics XVIII, January 25 - 31, 2025, San Francisco, California, United States
Subjectprinting; additive manufacturing; algorithm development; tomography; polymers; process control; scattered light; solids; visualization; X-ray computed tomography
Abstract
In tomographic volumetric additive manufacturing (VAM), 3D objects are printed by irradiating a rotating body of photocurable resin with time-varying near-UV light patterns. Operating a VAM printer requires significant user skill and familiarity. In particular, the correct UV exposure time is estimated before or manually during printing. This results in poor repeatability and wasted resin, resulting from variation in printing rates due to resin history, object geometry, and temperature variability. In this talk we will present a robust approach to automatic print exposure setting by quantifying the side-scattered light signal, allowing the user to walk away from the printer during printing. The print is terminated automatically when print completion is detected. To demonstrate the accuracy of this technique, we will present objects built with multiple VAM-printed parts, VAM-printed mechanical metamaterials, and x-ray computed tomography scans of test objects to quantify print fidelity.
Publication date
PublisherSPIE
In
  • Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVIII PC13381 (19 March 2025).
LanguageEnglish
Peer reviewedYes
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Record identifier8c4bde94-23e8-4d04-ac01-6fb2f22a454d
Record created2025-04-01
Record modified2025-04-02
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