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Open AccessArticle

Development of a multi-material stereolithography 3D printing device

1
Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 102, D-79110 Freiburg, Germany
2
Karlsruhe Institute of Technology, Institute for Applied Materials, Hermann-von-Helmholtz-Platz 1, D76344 Eggenstein-Leopoldshafen, Germany
*
Author to whom correspondence should be addressed.
Micromachines 2020, 11(5), 532; https://doi.org/10.3390/mi11050532
Received: 17 April 2020 / Revised: 18 May 2020 / Accepted: 21 May 2020 / Published: 22 May 2020
(This article belongs to the Section E:Engineering and Technology)
Additive manufacturing, or nowadays more popularly entitled as 3D printing, enables a fast realization of polymer, metal, ceramic or composite devices, which often cannot be fabricated with conventional methods. One critical issue for a continuation of this success story is the generation of multi-material devices. Whilst in fused filament fabrication or 3D InkJet printing, commercial solutions have been realized, in stereolithography only very few attempts have been seen. In this work, a comprehensive approach, covering the construction, material development, software control and multi-material printing is presented for the fabrication of structural details in the micrometer range. The work concludes with a critical evaluation and possible improvements.
Keywords: additive manufacturing; stereolithography; photopolymers; multi-material 3D printing additive manufacturing; stereolithography; photopolymers; multi-material 3D printing
MDPI and ACS Style

Khatri, B.; Frey, M.; Raouf-Fahmy, A.; Scharla, M.-V.; Hanemann, T. Development of a multi-material stereolithography 3D printing device. Micromachines 2020, 11, 532.

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