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G73 Rotation of the coordinate system
Heidenhain TNC (ISO) G-code · Mill
Rotates the coordinate system in the working plane by angle H. Klartext: CYCL DEF 10.0 ROTATION with 10.1 ROT.
Format
G73 G90 H
Addresses
| Address | What it does |
|---|---|
H | Rotation angle in degrees |
How it works
Active from definition. Cancel with G73 G90 H+0.
Example program
N60 G54 X+50 Y+50 *
N70 G73 G90 H+35 *
N80 L1,0 *
N90 G73 G90 H+0 *
…
N70 G73 G90 H+35 *
N80 L1,0 *
N90 G73 G90 H+0 *
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Rotation turns around the active datum, so shift the datum first.
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 |
| 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 |
| Swiss (Citizen Star) | Pattern repeat cycle |
Every G-code for Heidenhain TNC (ISO) 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 Heidenhain TNC G-codes