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G73 Pattern repeat cycle
Swiss (Citizen Star) G-code · Lathe
Repeats the profile shifted in steps, good for forged or preformed shapes.
Format
G73 U W R | G73 P Q U W F
Addresses
| Address | What it does |
|---|---|
U W first | Total stock to remove in X and Z |
R | Number of passes |
P Q | Profile blocks |
U W second | Finish stock |
F | Feed |
How it works
One shot.
Example program
G00 X.55 Z-.02 T0100 (TOOL 1)
G73 U.05 W0. R3
G73 P10 Q20 U.005 W0. F.002
N10 G00 X.3
…
G73 U.05 W0. R3
G73 P10 Q20 U.005 W0. F.002
N10 G00 X.3
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- On bar stock this wastes air cuts. Use G71 instead.
Related codes
G73 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | High speed peck drilling |
| Haas NGC | High speed peck drilling cycle |
| Mazak (EIA) | High speed peck drilling |
| Okuma OSP | High speed deep hole drilling |
| Mitsubishi M70 M80 | High speed peck drilling |
| Brother Speedio | High speed peck drilling |
| Heidenhain TNC (ISO) | Rotation of the coordinate system |
| Fagor 8055 8065 | Pattern rotation |
| LinuxCNC Tormach | Chip breaking drill cycle |
| Mach3 Mach4 | High speed peck drill |
| Centroid CNC12 Acorn | High speed peck drilling cycle |
| Hurco WinMax (NC) | High speed peck drilling |
| Fadal | Peck drill, chip break |
Every G-code for Swiss (Citizen Star) 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 G73 in the app All Swiss G-codes