Normal distance construction for machining edges of solid models

Details Normal distance construction for machining edges of solid models Normal distance construction for machining edges of solid models

1993-02-25

1994-11-08

Envall, Jr., Roy N.

Boots, shoes, and leggings

36447432, 36447431, 318570, 318573, 408 13, G06F 1546

Patent

active

053633091

ABSTRACT:
A computer-based system and method is provided for positioning a cutter tool to an edge of a solid model in a computer aided manufacturing environment. A shortest distance and direction required to position the machine tool cutter to the edge of the solid model is determined. Edges are defined as three dimensional space curves. The machine tool cutter is defined as a convex envelope. Using the space curve definition, the cutter location, and the center axis of rotation for the cutter, computations are executed to determine a directional vector and distance such that moving the cutter along the vector for the prescribed distance will cause it to be in contact with the curve. Adjustments are available which cause the cutter to travel to offsets from the curve, including aligning the front of the cutter to the curve, the end of the cutter on the curve, or the back of the cutter past the curve.

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