G51 Scaling on

Brother Speedio G-code · Mill

Scales the programmed shape around a center point.

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 or I J K

Addresses

Address	What it does
`X Y Z`	Scaling center
`P`	Scale factor for all axes
`I J K`	Scale factor per axis

How it works

Modal. Cancel with G50.

Example program

G51 X0 Y0 P500 (HALF SIZE)
M98 P2000 (RUN SHAPE)
G50 (SCALING OFF)

Example is in inch. Check offsets and clearances first.

Watch out for

Scaling is an option on many controls. Check that it is on your machine.
Scaling does not scale offsets.

Related codes

G50 · M98

G51 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Scaling
Haas NGC	Scaling
Mazak (EIA)	Scaling on
Okuma OSP	Scaling on
Mitsubishi M70 M80	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

Every G-code for Brother Speedio in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.

Open G51 in the app All Brother Speedio G-codes

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