한국섬유공학회지 (Textile Science and Engineering)

  • 제60권3호
  • /
  • Pages.194-200
  • /
  • 2023
  • /
  • 1225-1089(pISSN)
  • /
  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지
DOI QR코드

DOI QR Code

명시적/암시적 수식의 계산 오차 수정을 통한 3D 프린팅 지지구조 단층촬영법의 개선

Improvement of 3D Printing Support Structure Tomography by Correcting Calculation Error between Explicit and Implicit Formula

  • 설인환 (금오공과대학교 소재디자인공학과)
  • In Hwan Sul (Department of Materials Design Engineering, Kumoh National Institute of Technology)
  • 투고 : 2023.05.19
  • 심사 : 2023.06.12
  • 발행 : 2023.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

The authors recently presented a new calculation scheme, designated as support structure tomography, which can easily predict and minimize the amount of the support structure in waterproof human mannequin 3D printing. It started with voxelization of triangular mannequin mesh and predicted the information of support structure by triangles' normal vector information. It could be implemented in either explicit or implicit formula. The former could give both positions and amounts of support structure; while the implicit could give total mount only. By the way, two methods gave a little different result because of numerical errors in voxelization. This work reduced the noise reduction algorithm to one pass and stored only z-components in triangle normal vectors to deal with such discrepancy. The modified algorithm's accuracy was compared with that of g-code-based slicing software for a several typical shapes.

키워드

과제정보

이 연구는 금오공과대학교 학술연구비로 지원되었음(202102210001).

참고문헌

  1. J. Y. Jung, "Optimal 3D Printing of Organic Heating Thermal Manikin Using Human Feature Point Based Automatic Segmentation and Support Structure Tomography", Master Thesis, Kumoh National Institute of Technoogy, Gumi, 2022.
  2. C. Dai, C. C. Wang, C. Wu, S. Lefebvre, G. Fang, and Y.-J. Liu, "Support-free Volume Printing by Multi-axis Motion", ACM Transactions on Graphics (TOG), 2018, 37, 1-14. https://doi.org/10.1145/3197517.3201342
  3. L. Luo, I. Baran, S. Rusinkiewicz, and W. Matusik, "Chopper: Partitioning Models into 3D-printable Parts", ACM Transactions on Graphics, 2012, 31, 129-137. https://doi.org/10.1145/2366145.2366148
  4. J. Vanek, J. G. Galicia, B. Benes, R. Mech, N. Carr, O. Stava, and G. Miller, "PackMerger: A 3D Print Volume Optimizer", Computer Graphics Forum, Wiley Online Library, 2014, pp.322-332.
  5. X. Chen, H. Zhang, J. Lin, R. Hu, L. Lu, Q.-X. Huang, B. Benes, D. Cohen-Or, and B. Chen, "Dapper: Decompose-and-pack for 3D Printing", ACM Trans. Graph., 2015, 34, 213.
  6. M. X. Gan and C. H. Wong, "Practical Support Structures for Selective Laser Melting", J. Mater. Process. Technol., 2016, 238, 474-484. https://doi.org/10.1016/j.jmatprotec.2016.08.006
  7. J. Vanek, J. A. G. Galicia, and B. Benes, "Clever Support: Efficient Support Structure Generation for Digital Fabrication", Computer Graphics Forum, Wiley Online Library, 2014, pp.117-125.
  8. J. Y. Jung, S. Chee, and I. H. Sul, "Prediction of Optimal 3D Printing Orientation Using Vertically Sparse Voxelization and Modified Support Structure Tomography", Int. J. Cloth. Sci. Tech., 2023 (submitted).
  9. https://github.com/cfms-lab/tomoNV
  10. J. Y. Jung, S. Chee, and I. H. Sul, "Support Structure Tomography Using Per-pixel Signed Shadow Casting in Human Manikin 3D Printing", Fashion and Textiles, 2022, 9, 1-18. https://doi.org/10.1186/s40691-021-00271-8
  11. B. Ezair, F. Massarwi, and G. Elber, "Orientation Analysis of 3D Objects Toward Minimal Support Volume in 3D-printing", Computers & Graphics, 2015, 51, 117-124. https://doi.org/10.1016/j.cag.2015.05.009
  12. https://en.wikipedia.org/wiki/Spherical_cap