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A Mathematical Description of Snowboard Edge Geometry

The shape, or the geometry, of a snowboard is considered a critical
performance element of a snowboard. However, concise mathematical
definitions of commonly cited descriptors are not available. The intent
of this paper is to provide an mathematical description of the geometry
involved in snowboard edges. I propose the edge shape to be that of the
curve of intersection between two orthogonal cylinders. One cylinder in
the X, Y plane representing the circle formed by the sidecut radius, and
one cylinder in the X, Z plane representing the circle formed by the radius
of curvature along the length of the long axis of the board, or the camber
of the board.


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