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G84 Tapping cycle

Mitsubishi M70 M80 G-code · Mill

Taps a right hand thread. Mitsubishi selects synchronous rigid tapping with ,R1 or by parameter, and Q gives peck tapping.

Format

G84 X Y Z R P Q F [,R] [,S]

Addresses

Address	What it does
`X Y`	Hole position
`Z`	Hole bottom
`R`	R plane
`P`	Dwell at bottom
`Q`	Peck depth for peck tapping
`F`	Feed, RPM times pitch in G94, or pitch in G95
`,R`	,R1 synchronous rigid tap, ,R0 floating holder
`,S`	Spindle speed for the retract

How it works

Modal, canned cycle group 09. Cancel with G80.

Example program

T6 M06 (.500-13 TAP)
G90 G54 G00 X1. Y1. S400 M03 (START)
G43 H06 Z1. M08 (LENGTH COMP)
G98 G84 Z-.75 R.1 F30.77 ,R1 (30.77 IPM EQUALS 400 RPM TIMES .0769)
…

The full 6-line example is in the app. Example is in inch. Check offsets and clearances first.

Watch out for

Feed must equal RPM times pitch in G94. With G95, F is the pitch.
If ,R is left out, a parameter decides rigid or floating. Write ,R1 so the program does not depend on it.
Fanuc programs that use M29 may need ,R1 here instead.

Related codes

G74 · G80 · G94 · G95

G84 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Tapping cycle
Haas NGC	Tapping canned cycle
Mazak (EIA)	Tapping cycle
Okuma OSP	Tapping cycle
Brother Speedio	Tapping cycle
Fagor 8055 8065	Tapping canned cycle
LinuxCNC Tormach	Right hand tapping cycle
Mach3 Mach4	Tapping cycle
Centroid CNC12 Acorn	Right hand tapping cycle
Hurco WinMax (NC)	Tapping cycle
Fadal	Right hand tap, floating holder
Swiss (Citizen Star)	Face tapping cycle

Every G-code for Mitsubishi M70 M80 in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.

Open G84 in the app All Mitsubishi M70 M80 G-codes

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