Computer-aided design file format for additive manufacturing and methods of file generation

Patent · 16 August 2022

OSTI ID:1924997

Vernon, Gregory John

A tessellated output file format describing a computer-aided design (CAD) model including a plurality of vertices, a plurality of curves, a plurality of surfaces, and at least one volume, the tessellated output file format comprising base polygon data, a vertex metadata container, a curve metadata container, and a surface metadata container. The base polygon data defines the CAD model for additive manufacturing and includes a plurality of connected polygons, each polygon including a plurality of nodes, a plurality of edges, and a face. The vertex metadata container includes a listing of CAD model vertices and one polygon node associated with each CAD model vertex. The curve metadata container includes a listing of CAD model curves and at least one polygon edge associated with each CAD model curve. The surface metadata container includes a listing of CAD model surfaces and at least one polygon face associated with each CAD model surface.

• Research Organization: Kansas City Plant (KCP), Kansas City, MO (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: NA0000622
• Assignee: Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
• Patent Number(s): 11,416,648
• Application Number: 15/961,239
• OSTI ID: 1924997
• Country of Publication: United States
• Language: English