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G16 Tangential arc, polar
Heidenhain TNC (ISO) G-code · Mill
Cuts an arc tangential to the previous element to a point given by polar radius R and angle H. Klartext: CTP PR PA.
Format
G16 R H [F]
Addresses
| Address | What it does |
|---|---|
R | Polar radius of the end point |
H | Polar angle of the end point |
How it works
Modal path function.
Example program
N50 I+40 J+35 *
N60 G01 G42 X+0 Y+35 F250 *
N70 G11 R+25 H+120 *
N80 G16 R+30 H+30 *
…
N60 G01 G42 X+0 Y+35 F250 *
N70 G11 R+25 H+120 *
N80 G16 R+30 H+30 *
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- The pole is not the arc center here. It only locates the end point.
Related codes
G16 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Polar coordinate command |
| Mazak (EIA) | Polar coordinate input on |
| Okuma OSP | Work coordinate system select, one block |
| Brother Speedio | Polar coordinate command |
| Fagor 8055 8065 | Main plane by two axes |
| Mach3 Mach4 | Polar coordinates on |
| Hurco WinMax (NC) | Polar coordinates |
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