Coordinate measuring machine are used for the measurement of length over the outer surfaces of a length bar or any other long member. The member may be either rounded or flat and parallel. The measuring machine are more useful and advantages than vernier calipers, micrometer, screw gauges etc. The measuring machines are generally of more
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The various test performed in pillar type drilling machine are, Flatness of clamping surface of base. Flatness of clamping surface of table. Perpendicularity of drill head guide to the base plate. Perpendicularity of drill head guide with table. Perpendicularity of spindle sleeve with base plate. True running of spindle taper. Parallelism of the spindle axis
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The various test performed on the alignment tests on milling machine are, Cutter spindle axial slip or float. Eccentricity of external diameter. True running of internal taper. Surface parallel with longitudinal movement. Traverse movement parallel with spindle axis. Centre T-slot Square with the arbor. Tests on column. Over arm parallel with spindle. This are various
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