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A Novel Slicing Strategy to Print Overhangs without Support Material
| Content Provider | MDPI |
|---|---|
| Author | Michael, Wüthrich Gubser, Maurus Elspass, Wilfried J. Jaeger, Christian |
| Copyright Year | 2021 |
| Description | 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. |
| Starting Page | 8760 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app11188760 |
| Journal | Applied Sciences |
| Issue Number | 18 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-09-20 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Manufacturing Engineering Fdm Printing Slicing Strategy Conic Slicing Non-planar Slicing Non-planar Printing Overhang Supportless Printing 3d Printing Process |
| Content Type | Text |
| Resource Type | Article |
