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G31 Skip function
Mitsubishi M70 M80 G-code · Mill
Feeds toward the point and stops when the skip signal turns on, usually from a probe. The position is saved in system variables.
Format
G31 X Y Z F
Addresses
| Address | What it does |
|---|---|
X Y Z | Target point if no signal comes |
F | Feed rate |
How it works
Non-modal, group 00.
Example program
G00 Z.5 (ABOVE PART)
G31 Z-.5 F10. (PROBE DOWN)
G00 Z.5 (BACK UP)
G31 Z-.5 F10. (PROBE DOWN)
G00 Z.5 (BACK UP)
Example is in inch. Check offsets and clearances first.
Watch out for
- Probe macros use G31. Never jog a probe stylus into the part at rapid.
- If the signal never comes, the axis goes all the way to the target.
Related codes
G31 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Skip function |
| Haas NGC | Skip function, probe move |
| Okuma OSP | Skip function |
| Brother Speedio | Skip function |
| Heidenhain TNC (ISO) | Blank form max point |
| Mach3 Mach4 | Probe move |
| Hurco WinMax (NC) | Skip, probing move |
| Fadal | Probe touch function |
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