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screw thread terminology pitch measuring machine gear tooth vernier bench micrometer base tangent method three wire method bme best wire size material properties cmm lasers metrology scanning laser systems automated off-line and on-line machine vision for inspection 1-10-100 rule seven quality tools dimensions of quality deming’s cycle cost of quality quality characteristics deming’s 14 principles. quality circle acceptance sampling statistical quality control control charts x-chart sampling plan methods metrology measurments comparators johansson mikrokator solex gauge comparators electrical comparators mechanical comparators optical comparators pneumatic comparators geometric tolerance interference transition clearance shaft basis taylor principle unilateral tolerance • bilateral tolerance hole basis limit fits & tolerances classification of plain gauge errors constant chord measurement of various elements of thread gears types of thread constant chord method effective diameter forms of thread errors in thread engineering design consideration engineering material engineering material application mp manufacturing process casting forging sheet metal machine element basic mechanical engineering belt drive chain drive gear drive materials design steps in design design fundamentals selection of materials r-chart sqc oc curve fault / failure tree analysis (fta) kanban zero defects jit kaizen poka yoke quality function deployment 5s auto-collimator npl flatness interferometers laser interferometers types of interferometers pitter–npl gauge principle of interference two wire method gear rolling tester tool maker’s microscope types of gears profile projector chordal thickness method