Fixed Cycles on the Mill - 13: G89
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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.

G89 - counter boring cycle for a boring bar: G89 X1. Y1. Z-1. R.1 P800 F10

This cycle is half G82 and half G86 canned cycle. The tool will feed into the hole and pause at the bottom. Then the spindle will stop and the tool will rapid out.

G89 X1. Y1. Z-1. R.1 P800 F10

This cycle will leave a witness mark. Again, the pause is necessary to relieve tool pressure for very accurate depths.

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label: fixed cycles, G codes, words, canned cycles G73, G74, G76, G81, G82, G83, G84, G85, G86, G89