G0 Rapid traverse positioning

Siemens 840D 828D G-code · Mill and lathe

Moves the axes at rapid traverse to the programmed position. Used for moves in air, never for cutting. By default the axes move on a straight line.

Format

G0 X Y Z [A B C]

Addresses

Address	What it does
`X Y Z`	End position, absolute or incremental per G90 or G91
`A B C`	Rotary axis end position, if fitted

How it works

Modal, G group 1 (motion). Stays active until G1, G2, G3, CIP or another motion command.

Example program

G17 G54 G71 G90 ; MM, ABSOLUTE, XY PLANE
T1 D1 ; SELECT FACE MILL AND OFFSET
M6 ; TOOL CHANGE
S1200 M3 ; SPINDLE ON CW
…

The full 7-line example is in the app. Example is in inch. Check offsets and clearances first.

Watch out for

G0 runs a straight line path by default. With RTLIOF each axis moves at its own rapid rate and the path can dogleg, so check clearance.
G0 ignores F. The last F stays stored and comes back with the next G1.
Bring Z down to a safe clearance in a separate block before moving into the part area.

Related codes

G1 · G90 · G91 · G54

G0 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Rapid positioning
Haas NGC	Rapid motion positioning
Mazak (EIA)	Rapid positioning
Okuma OSP	Rapid positioning
Mitsubishi M70 M80	Rapid positioning
Brother Speedio	Rapid positioning
Heidenhain TNC (ISO)	Rapid straight line, Cartesian
Fagor 8055 8065	Rapid traverse
LinuxCNC Tormach	Rapid move
Mach3 Mach4	Rapid move
Centroid CNC12 Acorn	Rapid positioning
Hurco WinMax (NC)	Rapid positioning
Fadal	Rapid travel
Swiss (Citizen Star)	Rapid positioning

Every G-code for Siemens 840D 828D 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 G0 in the app All Siemens 840D 828D G-codes

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