A PPARENTLY Routh was the first to turn to account the fact that the curvature and torsion of a space curve represent the components of rotation of the fundamental axes as they move along the curve.
Two axes of motion are used by a conventional single point diamond turning (SPDT) lathe to describe a curve in space. The curve is formed between the centerline of the work piece to be machined and ...
The advent of four axis SPDT enables the generation of non-axisymmetric surfaces. This tool has two extra motions in addition to the orthogonal two axes of motion (x and z axes) featured in a SPDT ...
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