Microstructure Control in 3D Printing with Digital Light Processing

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dc.contributor.authorLuongo, A.en_US
dc.contributor.authorFalster, V.en_US
dc.contributor.authorDoest, M. B.en_US
dc.contributor.authorRibo, M. M.en_US
dc.contributor.authorEiriksson, E. R.en_US
dc.contributor.authorPedersen, D. B.en_US
dc.contributor.authorFrisvad, J. R.en_US
dc.contributor.editorBenes, Bedrich and Hauser, Helwigen_US
dc.date.accessioned2020-05-22T12:24:43Z
dc.date.available2020-05-22T12:24:43Z
dc.date.issued2020
dc.description.abstractDigital light processing stereolithography is a promising technique for 3D printing. However, it offers little control over the surface appearance of the printed object. The printing process is typically layered, which leads to aliasing artefacts that affect surface appearance. An antialiasing option is to use greyscale pixel values in the layer images that we supply to the printer. This enables a kind of subvoxel growth control. We explore this concept and use it for editing surface microstructure. In other words, we modify the surface appearance of a printed object by applying a greyscale pattern to the surface voxels before sending the cross‐sectional layer images to the printer. We find that a smooth noise function is an excellent tool for varying surface roughness and for breaking the regularities that lead to aliasing. Conversely, we also present examples that introduce regularities to produce controlled anisotropic surface appearance. Our hope is that subvoxel growth control in stereolithography can lead 3D printing towards customizable surface appearance. The printing process adds what we call ground noise to the printed result. We suggest a way of modelling this ground noise to provide users with a tool for estimating a printer's ability to control surface reflectance.en_US
dc.description.number1
dc.description.sectionheadersArticles
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.13807
dc.identifier.issn1467-8659
dc.identifier.pages347-359
dc.identifier.urihttps://doi.org/10.1111/cgf.13807
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13807
dc.publisher© 2020 Eurographics ‐ The European Association for Computer Graphics and John Wiley & Sons Ltden_US
dc.subject3D printing
dc.subjectadditive manufacturing
dc.subjectappearance
dc.subjectBRDF
dc.subjectfabrication
dc.subjectreflectance
dc.subjectsurface roughness
dc.subject• Computing methodologies → Reflectance modelling
dc.titleMicrostructure Control in 3D Printing with Digital Light Processingen_US
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