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 |
Custom Slicing Algorithm Enabling Path Optimization for Continuous Extrusion in Alumina DIW |
Author(s) |
Jason McCleary, Abigail Ortega, Stephani Nevarez, Francisco Medina |
On-Site Speaker (Planned) |
Jason McCleary |
Abstract Scope |
Direct Ink Writing (DIW) of alumina ceramics demands slicers that respect the rheology of viscoelastic pastes and the physics of continuous extrusion. Conventional polymer-based slicers introduce travel moves, retractions, and abrupt speed changes that cause start and stop extrusion defects, voids, and anisotropic defects in ceramic parts. Recent research focuses on algorithms that minimize or eliminate non extruding motions, embed pressure lag compensation, and tailor infill orientation to control density and shrinkage. In this study simple geometries of three scales are sliced and printed using commercially available Ultimaker Cura Slicer. To compare continuous pathing, a custom algorithm is used to print the same geometries to limit start and stop of extrusion and compared based on visual defects and density. Collectively, custom slicing advances are transforming DIW from an art of parameter tweaking into a data driven process capable of producing high density, defect controlled alumina components for industrial applications. |
Proceedings Inclusion? |
Planned: Post-meeting proceedings |