Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology
In the planning stage of the fabrication process of physical models of cellular structures, a surface model of the structure needs to be adjusted to acquire the requisite properties, but errors emerge frequently at this stage. The main objective of this research was to repair or reduce the impact of...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-02-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/5/1198 |
| _version_ | 1797614486926917632 |
|---|---|
| author | Adrián Vodilka Martin Koroľ Marek Kočiško Jozef Zajac |
| author_facet | Adrián Vodilka Martin Koroľ Marek Kočiško Jozef Zajac |
| author_sort | Adrián Vodilka |
| collection | DOAJ |
| description | In the planning stage of the fabrication process of physical models of cellular structures, a surface model of the structure needs to be adjusted to acquire the requisite properties, but errors emerge frequently at this stage. The main objective of this research was to repair or reduce the impact of deficiencies and errors before the fabrication of physical models. For this purpose, it was necessary to design models of cellular structures with different accuracy settings in PTC Creo and then compare them after the tessellation process using GOM Inspect. Subsequently, it was necessary to locate the errors occurring in the process of preparing models of cellular structures and propose an appropriate method of their repair. It was found that the Medium Accuracy setting is adequate for the fabrication of physical models of cellular structures. Subsequently, it was found that within regions where mesh models merged, duplicate surfaces emerged, and the entire model could be considered as manifesting non-manifold geometry. The manufacturability check showed that in the regions with duplicate surfaces inside the model, the toolpath creation strategy changed, causing local anisotropy within 40% of the fabricated model. A non-manifold mesh was repaired in the proposed manner of correction. A method of smoothing the model’s surface was proposed, reducing the polygon mesh density and the file size. The findings and proposed methods of designing cellular models, error repair and smoothing methods of the models can be used to fabricate higher-quality physical models of cellular structures. |
| first_indexed | 2024-03-11T07:13:07Z |
| format | Article |
| id | doaj.art-06f4356e56df400fbc96e36e7766af16 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T07:13:07Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-06f4356e56df400fbc96e36e7766af162023-11-17T08:27:31ZengMDPI AGPolymers2073-43602023-02-01155119810.3390/polym15051198Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM TechnologyAdrián Vodilka0Martin Koroľ1Marek Kočiško2Jozef Zajac3Faculty of Manufacturing Technologies, Technical University of Kosice, 080 01 Presov, SlovakiaFaculty of Manufacturing Technologies, Technical University of Kosice, 080 01 Presov, SlovakiaFaculty of Manufacturing Technologies, Technical University of Kosice, 080 01 Presov, SlovakiaFaculty of Manufacturing Technologies, Technical University of Kosice, 080 01 Presov, SlovakiaIn the planning stage of the fabrication process of physical models of cellular structures, a surface model of the structure needs to be adjusted to acquire the requisite properties, but errors emerge frequently at this stage. The main objective of this research was to repair or reduce the impact of deficiencies and errors before the fabrication of physical models. For this purpose, it was necessary to design models of cellular structures with different accuracy settings in PTC Creo and then compare them after the tessellation process using GOM Inspect. Subsequently, it was necessary to locate the errors occurring in the process of preparing models of cellular structures and propose an appropriate method of their repair. It was found that the Medium Accuracy setting is adequate for the fabrication of physical models of cellular structures. Subsequently, it was found that within regions where mesh models merged, duplicate surfaces emerged, and the entire model could be considered as manifesting non-manifold geometry. The manufacturability check showed that in the regions with duplicate surfaces inside the model, the toolpath creation strategy changed, causing local anisotropy within 40% of the fabricated model. A non-manifold mesh was repaired in the proposed manner of correction. A method of smoothing the model’s surface was proposed, reducing the polygon mesh density and the file size. The findings and proposed methods of designing cellular models, error repair and smoothing methods of the models can be used to fabricate higher-quality physical models of cellular structures.https://www.mdpi.com/2073-4360/15/5/1198FDMadditive manufacturingcellular structurelattice structuremesh repairmesh error |
| spellingShingle | Adrián Vodilka Martin Koroľ Marek Kočiško Jozef Zajac Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology Polymers FDM additive manufacturing cellular structure lattice structure mesh repair mesh error |
| title | Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology |
| title_full | Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology |
| title_fullStr | Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology |
| title_full_unstemmed | Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology |
| title_short | Adjusting Surface Models of Cellular Structures for Making Physical Models Using FDM Technology |
| title_sort | adjusting surface models of cellular structures for making physical models using fdm technology |
| topic | FDM additive manufacturing cellular structure lattice structure mesh repair mesh error |
| url | https://www.mdpi.com/2073-4360/15/5/1198 |
| work_keys_str_mv | AT adrianvodilka adjustingsurfacemodelsofcellularstructuresformakingphysicalmodelsusingfdmtechnology AT martinkorol adjustingsurfacemodelsofcellularstructuresformakingphysicalmodelsusingfdmtechnology AT marekkocisko adjustingsurfacemodelsofcellularstructuresformakingphysicalmodelsusingfdmtechnology AT jozefzajac adjustingsurfacemodelsofcellularstructuresformakingphysicalmodelsusingfdmtechnology |