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M97 Machine small contour steps
Heidenhain TNC (ISO) M-code · Mill
Machines a contour step that is smaller than the tool radius without stopping or damaging the contour. The control adds a path intersection.
Format
M97
Addresses
| Address | What it does |
|---|---|
M97 | Programmed in the block of the outside corner point |
How it works
Non-modal.
Example program
N60 G01 G41 X+20 Y+20 F300 *
N70 X+45 M97 *
N80 Y+25 *
N90 X+70 *
N70 X+45 M97 *
N80 Y+25 *
N90 X+70 *
Example is in inch. Check offsets and clearances first.
Watch out for
- Mostly in older programs. Newer TNC controls handle small steps with M120 LOOK AHEAD.
Related codes
M97 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Interrupt type macro disable |
| Haas NGC | Local subprogram call |
| DMG Mori MAPPS (Fanuc) | Macro interrupt mode cancel |
| Mazak (EIA) | User macro interruption, invalid |
| Mitsubishi M70 M80 | Macro interrupt disable |
| Fadal | Intersectional cutter comp |
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