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Conference Tools for 2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Meeting 2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
Symposium Modeling
Presentation Title Watertight Geometric Modeling for the Additive Manufacturing Digital Thread
Author(s) Ryan Jennings, Brian Ferguson, John McCann, Benjamin Urick, Richard Crawford, Dan Keller
On-Site Speaker (Planned) Ryan Jennings
Abstract Scope The standard digital workflow for generating input data for additive manufacturing (AM) processes consists of an ad hoc and pragmatic approach of modeling representations. Typical downstream representations employed are the result of the CAD model not being directly suitable for use. Derivative models are generated to fill this need and to solve critical issues with flaws in the CAD data, but as a result introduce many other problems affecting both the digital process as well as the precision of the final AM print. The Kansas City National Security Campus (KCNSC) is working towards a solution to eliminate these problems by investigating the value provided by a smooth, accurate, and watertight geometric definition within the native CAD platform. To do so, KCNSC is partnering with nVariate, Inc. to utilize their patented technology to create natively watertight models, and explore directly slicing the watertight CAD models for use on the AM machine. The Department of Energy’s Kansas City National Security Campus is operated and managed by Honeywell Federal Manufacturing & Technologies, LLC under contract number DE-NA0002839.
Proceedings Inclusion? Definite: Post-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel Knowledge-based Toolpath Constructive Approach for Designing High-precision Graded Lattice Structures
A Roadmap Towards Parallel Printing for Desktop 3D Printers
An Efficient Layer Construction Method to Generate Accurate Printing Toolpaths of Periodic Cellular Structures for Selective Laser Melting Process
Escaping Tree-support (ET-Sup): Minimizing Contact Points for Tree-like Support Structures in Additive Manufacturing
Expanding Process Space of Laser Powder Bed Additive Manufacturing Using Alternative Scan Strategies
Investigation and Modeling of the Residence Time Dependent Material Degradation in the Arburg Plastic Freeforming
Manufacturability Analysis of Crumple-formed Geometries Through Reduced Order Models
Model-based Toolpath Control for Direct Ink Write Additive Manufacturing
ORNL Slicer 2.0: Towards a New Slicing Paradigm
Physical Deposition Profile Based Toolpath Generation and Optimization for Additive Volume Building in Hybrid Additive Manufacturing
Support-free Hollowing for 3+2-Axis Additive Manufacturing
Support Structure Geometry influences on Strength and Removability for LPBF AM
Truss-Type Support Structures for SLM
Watertight Geometric Modeling for the Additive Manufacturing Digital Thread

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