G51 Scaling on

Mazak (EIA) G-code · Mill

Scales the following moves about a center point. Used to cut the same shape larger or smaller from one subprogram.

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 X Y Z P

Addresses

Address	What it does
`X Y Z`	Scaling center
`P`	Scale factor. Units with and without a decimal point depend on parameter

How it works

Modal until G50.

Example program

G90 G54 G00 X0. Y0. (CENTER)
G51 X0. Y0. P.5 (HALF SIZE ABOUT ZERO)
M98 P2000 (PROFILE SUBPROGRAM)
G50 (SCALING OFF)

Example is in inch. Check offsets and clearances first.

Watch out for

Scaling does not scale tool offsets. Cutter comp radius stays the same.
Check the P factor format on your machine before using it.

Related codes

G50

G51 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Scaling
Haas NGC	Scaling
Okuma OSP	Scaling on
Mitsubishi M70 M80	Scaling on
Brother Speedio	Scaling on
Heidenhain TNC (ISO)	Tool preselection
Mach3 Mach4	Scaling and mirror
Centroid CNC12 Acorn	Scaling and mirroring on
Hurco WinMax (NC)	Scaling
Fadal	Ramp slope control

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Open G51 in the app All Mazak G-codes

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