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Multi-direction slicing of STL models for robotic wire-feed additive manufacturing

Conference Paper


Abstract


  • Robotic wire-feed additive manufacturing technology is possible to directly fabricate metallic overhangs without support structures through multi-direction deposition. To automatically produce complex components with overhangs, an efficient multi-direction slicing algorithm to slice CAD models into a set of proper layers is required. This paper reports the concept and implementation of a new strategy for multi-direction slicing of CAD models represented in STL format. An input STL model is firstly decomposed into sub-volumes using a simple curvature-based volume decomposition method. Accordingly, each sub-volume is able to be built in a single direction. Then a depth-tree structure is introduced to regroup the decomposed sub-volumes and provide the slicing sequences. Consequently, sub-volumes are separately sliced along their associated appropriate build directions in sequence. The proposed multi-direction slicing strategy is shown to be simple and efficient for STL models with sharp edges.

Publication Date


  • 2020

Citation


  • Ding, D., Pan, Z., Cuiuri, D., Li, H., Larkin, N., & van Duin, S. (2020). Multi-direction slicing of STL models for robotic wire-feed additive manufacturing. In Proceedings - 26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 (pp. 1059-1069).

Scopus Eid


  • 2-s2.0-85084927682

Web Of Science Accession Number


Start Page


  • 1059

End Page


  • 1069

Abstract


  • Robotic wire-feed additive manufacturing technology is possible to directly fabricate metallic overhangs without support structures through multi-direction deposition. To automatically produce complex components with overhangs, an efficient multi-direction slicing algorithm to slice CAD models into a set of proper layers is required. This paper reports the concept and implementation of a new strategy for multi-direction slicing of CAD models represented in STL format. An input STL model is firstly decomposed into sub-volumes using a simple curvature-based volume decomposition method. Accordingly, each sub-volume is able to be built in a single direction. Then a depth-tree structure is introduced to regroup the decomposed sub-volumes and provide the slicing sequences. Consequently, sub-volumes are separately sliced along their associated appropriate build directions in sequence. The proposed multi-direction slicing strategy is shown to be simple and efficient for STL models with sharp edges.

Publication Date


  • 2020

Citation


  • Ding, D., Pan, Z., Cuiuri, D., Li, H., Larkin, N., & van Duin, S. (2020). Multi-direction slicing of STL models for robotic wire-feed additive manufacturing. In Proceedings - 26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 (pp. 1059-1069).

Scopus Eid


  • 2-s2.0-85084927682

Web Of Science Accession Number


Start Page


  • 1059

End Page


  • 1069