About this Abstract |
| Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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| Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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| Presentation Title |
A Novel Slicing Algorithm for Wall Structures for Additive Construction |
| Author(s) |
Charith Oshadi Nanayakkara Ratnayake, Epitaha Henegedara Methsiri Faris, Zac Hyden, Tanner Wood, Jim Mantes, Wenchao Zhou |
| On-Site Speaker (Planned) |
Charith Oshadi Nanayakkara Ratnayake |
| Abstract Scope |
Additive construction (AC) of concrete requires slicing that generates continuous toolpaths compatible with wall-like structures and meets concrete extrusion constraints. Existing slicers lack automated, geometry-agnostic support for continuous AC-oriented infill path. These slicers often produce segmented toolpaths with frequent retractions and travel movements or rely on manual, geometry-specific scripting.
This paper presents a general-purpose slicing algorithm that handles arbitrary wall-type geometries or derives them from non-wall inputs, generating continuous AC-oriented sinewave or sawtooth-style infill paths. These infill paths can improve structural rigidity, thermal insulation, and printing speed due to increased shape stability, while enabling internal voids for placement of structural reinforcement and utilities. Integrated into the ACC Slicer under the Additive Construction of Maneuver Enabling Technology (ACME Tech) program sponsored by U.S. Army Engineer Research and Development Center (ERDC), the algorithm is evaluated on five representative geometries, demonstrating robust performance as a general-purpose AC slicer for wall-type structures. |
| Proceedings Inclusion? |
Planned: Post-meeting proceedings |