Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-23195
Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: A novel slicing strategy to print overhangs without support material
Authors: Wüthrich, Michael
Gubser, Maurus
Elspass, Wilfried Johannes
Jaeger, Christian
et. al: No
DOI: 10.3390/app11188760
10.21256/zhaw-23195
Published in: Applied Sciences
Volume(Issue): 11
Issue: 18
Page(s): 8760
Issue Date: 20-Sep-2021
Publisher / Ed. Institution: MDPI
ISSN: 2076-3417
Language: English
Subjects: FDM printing; 3D printing process; Overhang; Supportless printing
Subject (DDC): 670: Manufacturing
Abstract: Fused deposition modeling (FDM) 3D printers commonly need support material to print overhangs. A previously developed 4-axis printing process based on an orthogonal kinematic, an additional rotational axis around the z-axis and a 45° tilted nozzle can print overhangs up to 100° without support material. With this approach, the layers are in a conical shape and no longer parallel to the printing plane; therefore, a new slicer strategy is necessary to generate the paths. This paper describes a slicing algorithm compatible with this 4-axis printing kinematics. The presented slicing strategy is a combination of a geometrical transformation with a conventional slicing software and has three basic steps: Transformation of the geometry in the .STL file, path generation with a conventional slicer and back transformation of the G-code. A comparison of conventionally manufactured parts and parts produced with the new process shows the feasibility and initial results in terms of surface quality and dimensional accuracy.
URI: https://digitalcollection.zhaw.ch/handle/11475/23195
Fulltext version: Published version
License (according to publishing contract): CC BY 4.0: Attribution 4.0 International
Departement: School of Engineering
Organisational Unit: Institute of Mechatronic Systems (IMS)
Appears in collections:Publikationen School of Engineering

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Wüthrich, M., Gubser, M., Elspass, W. J., & Jaeger, C. (2021). A novel slicing strategy to print overhangs without support material. Applied Sciences, 11(18), 8760. https://doi.org/10.3390/app11188760
Wüthrich, M. et al. (2021) ‘A novel slicing strategy to print overhangs without support material’, Applied Sciences, 11(18), p. 8760. Available at: https://doi.org/10.3390/app11188760.
M. Wüthrich, M. Gubser, W. J. Elspass, and C. Jaeger, “A novel slicing strategy to print overhangs without support material,” Applied Sciences, vol. 11, no. 18, p. 8760, Sep. 2021, doi: 10.3390/app11188760.
WÜTHRICH, Michael, Maurus GUBSER, Wilfried Johannes ELSPASS und Christian JAEGER, 2021. A novel slicing strategy to print overhangs without support material. Applied Sciences. 20 September 2021. Bd. 11, Nr. 18, S. 8760. DOI 10.3390/app11188760
Wüthrich, Michael, Maurus Gubser, Wilfried Johannes Elspass, and Christian Jaeger. 2021. “A Novel Slicing Strategy to Print Overhangs without Support Material.” Applied Sciences 11 (18): 8760. https://doi.org/10.3390/app11188760.
Wüthrich, Michael, et al. “A Novel Slicing Strategy to Print Overhangs without Support Material.” Applied Sciences, vol. 11, no. 18, Sept. 2021, p. 8760, https://doi.org/10.3390/app11188760.


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