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G88 Side tapping cycle
Swiss (Citizen Star) G-code · Lathe
Taps in X with a cross live tool.
Format
G88 Z C X R P F [K]
Addresses
| Address | What it does |
|---|---|
Z C | Hole position |
X | Thread depth diameter |
R | Start point |
F | Pitch per rev in G99 |
How it works
Modal, group 10. Cancel with G80.
Example program
M18 (CITIZEN C AXIS ON)
G00 X.6 Z.25 C90. T1200 (CROSS TAP)
G88 X.2 R-.1 F.025 (4-40 TAP)
G80 (CANCEL)
G00 X.6 Z.25 C90. T1200 (CROSS TAP)
G88 X.2 R-.1 F.025 (4-40 TAP)
G80 (CANCEL)
Example is in inch. Check offsets and clearances first.
Watch out for
- Rigid side tapping needs the rotary tool spindle in sync mode. The code for that is builder specific.
Related codes
G88 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Boring cycle, manual retract |
| Haas NGC | Boring cycle, dwell and 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 |
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