Fixed Cycles on the Mill


		Fixed Cycles on the Mill - 5: G74
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		WARNING: Machine tools present a safety hazard. Improper operation can result in severe injury. These topics are for non-laboratory study only and are not to be used in conjunction with the operation of any tool or machine described herein. Never use a machine tool without the supervision of a qualified instructor.


		G74 - left hand tapping cycle: G74 X1. Y1. Z-.8 R.400 F30 G99 The left hand tapping cycle rapids to the XY coordinates and then to the R plane where it begins to feed the spindle down and counterclockwise at a feed rate of F to a depth of Z. The spindle will then reverse and feed upward as the same federate to the R plane. G99 will rapid to the initial plane..

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