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G51.1 Mirror image
Fadal G-code · Mill
Mirrors the named axes about the given point. Arc direction and cutter comp side flip with it.
Verify on your machine. This entry could not be fully checked against the maker manual. Check your machine manual before you run it.
Format
G51.1 [X] [Y]
Addresses
| Address | What it does |
|---|---|
X Y | Mirror line position |
How it works
Modal until G50.1.
Example program
N1 G0 G40 G49 G80 G90 G17 (FORMAT 2 SAFE START)
N2 T1 M6 (1-2 END MILL)
N3 G0 G90 G54 X0. Y0. S3000 M3
N4 G43 H1 Z.1 M8
…
N2 T1 M6 (1-2 END MILL)
N3 G0 G90 G54 X0. Y0. S3000 M3
N4 G43 H1 Z.1 M8
…
The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.
Watch out for
- Climb milling turns into conventional milling when one axis is mirrored.
- Cancel with G50.1.
Related codes
G51.1 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Fanuc | Programmable mirror image |
| Mitsubishi M70 M80 | Mirror image on |
| Brother Speedio | Programmable mirror image |
| Hurco WinMax (NC) | Mirror image |
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Open G51.1 in the app All Fadal G-codes