Three-dimensional machining method

摘要

In converting a uv curve (which is expressed in a uv coordinate system) on a curved surface #s into a xyz curve (which is expressed in the rectangular xyz coordinate system) or vice versa, a denominator is used as that of a function to express the uv curve and as that of a function to express the xyz curve. Paths of a center of a cutting tool to make the surface #s are determined by figuring out a normal vector N of a point S(u, v) on the surface #s, and the cutting tool is moved along the paths to machine the workpiece. <IMAGE>