G17 XY plane select

Fanuc G-code · Mill, Lathe

On mills: XY plane select

Selects the XY plane for arcs, cutter compensation and canned cycles. The drilling axis is Z. Normal default on a vertical mill.

Format

G17

How it works

Modal, group 02. Usually the power on default.

Example program

G17 G20 G40 G49 G80 G90 (SAFE START LINE)
G54 G00 X0. Y0. (WORK ZERO)
G02 X1. Y1. R1. F20. (ARC IN XY PLANE)

Example is in inch. Check offsets and clearances first.

Watch out for

Put G17 in the safe start line. A program left in G18 or G19 cuts arcs in the wrong plane.
Change planes only with cutter compensation cancelled.

On lathes: XY plane select

Selects the XY plane for arcs and compensation. On a lathe it is used with polar coordinate interpolation or a Y axis for face milling.

Format

G17

How it works

Modal, group 16. Lathe power on default is G18.

Example program

G17 G12.1 (XY PLANE, POLAR INTERPOLATION ON)
G13.1 (POLAR INTERPOLATION OFF)
G18 (BACK TO ZX PLANE)

Example is in inch. Check offsets and clearances first.

Watch out for

Go back to G18 before turning arcs or G71 style cycles.
Turn off tool nose radius compensation before changing planes.

Related codes

G18 · G19 · G02 · G12.1

G17 on other controls

The same number can mean something different on another control.

Control	Meaning
Haas NGC	XY plane selection
Mazak (EIA)	XY plane selection
Okuma OSP	Plane select XY
Mitsubishi M70 M80	XY plane select
Brother Speedio	XY plane select
Siemens 840D 828D	XY working plane
Heidenhain TNC (ISO)	Working plane XY, tool axis Z
Fagor 8055 8065	XY plane select
LinuxCNC Tormach	XY plane select
Mach3 Mach4	XY plane
Centroid CNC12 Acorn	XY plane select
Hurco WinMax (NC)	XY plane select
Fadal	XY plane select
Swiss (Citizen Star)	XY plane select

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