Contact information for 3D CAD by William Halversen
Contact information for 3D CAD by William Halversen Contact information for 3D CAD by William Halversen Contact information for 3D CAD by William Halversen Contact information for 3D CAD by William Halversen

Solid Modeling / NURBS

Aeroplane propeller lofted over sections utilizing tangencies of Nonuniform Rational B-Spline (NURBS) surfaces in AutoCAD ©. The sections were defined in-place on User Coordinate Systems. The complex, free-form nature of the surfaces are manufactured utilizing CAD / CAM methods on Numerically Controlled machines. Additionally, the solid model is used for Computational Fluid Dynamics.

Representational Drawing for Part Number Release

Non Uniform Rational B-Spline surfaces defining a solid model of an aeroplane propeller. Multi-view drawing with shaded views, and sections (see next slide) shown both in-place and removed. There are no dimensions, as the solid model would be used to generate an N/C tool-path for manufacturing, most likely on a 5-axis mill.

3D CAD

Designing

& Concepting

Manual Sketching
NURBS & Solid Modeling
Human Factors Ergonomics
Brainstorming Ideation Leader
Process Improvement Facilitator

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