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G84 Tapping cycle
Brother Speedio G-code · Mill
Taps a right hand thread. Feeds in, reverses the spindle at Z and feeds out.
Format
G84 X Y Z R F [P]
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Thread depth |
R | R plane |
F | Feed equals RPM times pitch |
P | Dwell at bottom in milliseconds |
How it works
Modal, canned cycle. Cancel with G80.
Example program
G100 T05 G90 G54 G00 X1. Y1. G43 H05 Z1. S600 M03 (.500-13 TAP)
M08 (COOLANT)
G99 G84 Z-.75 R.15 F46.15 (600 RPM TIMES .07692)
X2. (NEXT HOLE)
…
M08 (COOLANT)
G99 G84 Z-.75 R.15 F46.15 (600 RPM TIMES .07692)
X2. (NEXT HOLE)
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Feed must equal RPM times pitch. .500-13 at 600 RPM is 46.15 IPM.
- Feed override is locked during the tap stroke.
- Speedio machines are built for synchronized tapping. Confirm on your machine if an extra M code is needed.
Related codes
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 |
| Mitsubishi M70 M80 | 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 Brother Speedio 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 Brother Speedio G-codes