http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 videocassette (24 min.) : sound, color ; 1/2 in. + 1 tape timing guide.
Provides an introduction to the basic principles of computer numerical control (CNC), a process widely used in the manufacturing industry. Features segments on the rectangular coordinate system, program zero, axes of motion, point-to-point positioning, contouring, interpolation, and program command lines, as well as manual programming and computer-aided design and manufacturing.
produced by the Society of Manufacturing Engineers ; producer/director/camerman, Jerome T. Cook ; written by Mike Lynch.
VT710 Society of Manufacturing Engineers