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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 |
| 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 |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2021_Wuethrich_A_novel_slicing_strategy_Applied_Sciences.pdf | 37.3 MB | Adobe PDF |  View/Open |
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