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G25 Corner rounding with radius R
Heidenhain TNC (ISO) G-code · Mill
Inserts a tangential arc of radius R at the corner between two contour elements. Klartext: RND R.
Format
G25 R [F]
Addresses
| Address | What it does |
|---|---|
R | Rounding radius |
F | Feed rate for the rounding arc, optional |
How it works
Non-modal. Acts at one corner only.
Example program
N70 G01 G41 X+5 Y+5 F300 *
N80 G26 R5 F150 *
N90 Y+85 *
N100 G25 R10 *
…
N80 G26 R5 F150 *
N90 Y+85 *
N100 G25 R10 *
…
The full 5-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- The tool radius must be smaller than the rounding radius on inside corners or the control stops.
Related codes
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Open G25 in the app All Heidenhain TNC G-codes