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OpenFOAM simulations of filament fusion in embedded 3D printing

Published by National Institute of Standards and Technology | National Institute of Standards and Technology | Catalog Last Checked: September 10, 2026 at 05:39 PM | Dataset Last Updated: December 08, 2023
In embedded 3D printing, a nozzle is embedded into a support bath and extrudes filaments or droplets into the bath. However, moving the nozzle near an existing structure and writing new filaments can cause deformation and lack-of-fusion defects. Using OpenFOAM, we simulated what happens when a nozzle moves near an existing filament, and when a nozzle writes a second filament next to an existing filament. OpenFOAM is an open source computational fluid dynamics solver. This work used OpenFOAM 8 on a computing cluster. OpenFOAM input files were generated using Python 3.7. Output files were analyzed using Paraview 5.8.0 and Python 3.7. Associated code can be found on Github: https://github.com/usnistgov/openfoamEmbedded3DP, doi:10.18434/mds2-3128 This data is described in: Friedrich, L.M., & Gunther, R.T. (2023) Simulated inter-filament fusion in embedded 3D printing, submitted for publication.

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Complete Metadata
@type dcat:Dataset
accessLevel public
accrualPeriodicity irregular
bureauCode 
[
  "006:55"
]
contactPoint 
{
  "fn": "Jonathan Seppala",
  "hasEmail": "mailto:jonathan.seppala@nist.gov"
}
description In embedded 3D printing, a nozzle is embedded into a support bath and extrudes filaments or droplets into the bath. However, moving the nozzle near an existing structure and writing new filaments can cause deformation and lack-of-fusion defects. Using OpenFOAM, we simulated what happens when a nozzle moves near an existing filament, and when a nozzle writes a second filament next to an existing filament. OpenFOAM is an open source computational fluid dynamics solver. This work used OpenFOAM 8 on a computing cluster. OpenFOAM input files were generated using Python 3.7. Output files were analyzed using Paraview 5.8.0 and Python 3.7. Associated code can be found on Github: https://github.com/usnistgov/openfoamEmbedded3DP, doi:10.18434/mds2-3128 This data is described in: Friedrich, L.M., & Gunther, R.T. (2023) Simulated inter-filament fusion in embedded 3D printing, submitted for publication.
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]
identifier ark:/88434/mds2-3129
issued 2024-01-09
keyword 
[
  "3D-printing",
  "Herschel-Bulkley",
  "OpenFOAM",
  "extrusion",
  "rheology",
  "support-bath",
  "surface tension"
]
landingPage https://data.nist.gov/od/id/mds2-3129
language 
[
  "en"
]
license https://www.nist.gov/open/license
modified 2023-12-08 00:00:00
programCode 
[
  "006:045"
]
publisher 
{
  "name": "National Institute of Standards and Technology",
  "@type": "org:Organization"
}
theme 
[
  "Bioscience:Biomaterials",
  "Manufacturing:Additive manufacturing",
  "Manufacturing:Biomanufacturing",
  "Manufacturing:Process improvement",
  "Manufacturing:Process measurement and control",
  "Materials:Modeling and computational material science",
  "Materials:Polymers",
  "Mathematics and Statistics:Modeling and simulation research",
  "Mathematics and Statistics:Numerical methods and software"
]
title OpenFOAM simulations of filament fusion in embedded 3D printing

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