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G20 Inch input
Brother Speedio G-code · Mill
Sets program values to inches. Put it at the start of the program before any moves.
Format
G20
How it works
Modal, units group.
Example program
O1000 (INCH PROGRAM)
G20 (INCH)
G17 G40 G80 G90 (SAFE START)
G20 (INCH)
G17 G40 G80 G90 (SAFE START)
Example is in inch. Check offsets and clearances first.
Watch out for
- Do not switch units in the middle of a program.
- Offsets are not converted automatically on every control. Check after a unit change.
Related codes
G20 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Inch input |
| Haas NGC | Inch programming check |
| Mazak (EIA) | Inch input |
| Okuma OSP | Inch input confirmation |
| Mitsubishi M70 M80 | Inch input |
| Fagor 8055 8065 | Lower work zone limits (8055) |
| LinuxCNC Tormach | Inch units |
| Mach3 Mach4 | Inch units |
| Centroid CNC12 Acorn | Inch units |
| Hurco WinMax (NC) | Inch input (ISNC) |
| Fadal | Check for inch setting |
| Swiss (Citizen Star) | Inch input |
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