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G88 Boring cycle, dwell and manual retract
Haas NGC G-code · Mill
Feeds to the bottom, dwells, stops the spindle, and waits for the operator to jog out. Listed on older Haas controls.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
G88 X Y Z R P F
Addresses
| Address | What it does |
|---|---|
X Y | Hole position |
Z | Hole bottom |
R | R plane |
P | Dwell at the bottom |
F | Feed rate |
How it works
Modal, canned cycle group 09. Cancel with G80.
Example program
G90 G54 G00 X0. Y0. S900 M03 (BORE CENTER)
G43 H07 Z1. (APPROACH)
G88 G98 Z-1. R.1 P.5 F5. (BORE, DWELL, WAIT FOR MANUAL RETRACT)
G80 (CANCEL)
G43 H07 Z1. (APPROACH)
G88 G98 Z-1. R.1 P.5 F5. (BORE, DWELL, WAIT FOR MANUAL RETRACT)
G80 (CANCEL)
Example is in inch. Check offsets and clearances first.
Watch out for
- Not listed for current NGC mills, check your manual before use.
Related codes
G88 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Boring cycle, manual retract |
| Mazak (EIA) | Side tapping cycle, live tool |
| Okuma OSP | LAP continuous thread cutting cycle |
| Mitsubishi M70 M80 | Boring cycle, manual retract |
| Brother Speedio | Boring cycle with manual retract |
| Fagor 8055 8065 | Circular pocket canned cycle |
| LinuxCNC Tormach | Boring cycle, manual out, not implemented |
| Mach3 Mach4 | Bore, manual retract |
| Hurco WinMax (NC) | Rigid tap (BNC) or bore manual out (ISNC) |
| Fadal | Bore in, dwell, bore out |
| Swiss (Citizen Star) | Side tapping cycle |
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