What is G17, G18, and G19?

The Gcode G17, G18, and G19 select the working plane. The selected working plane affects the following commands:

Gcode G17, G18 and G19 Explained

  • G02 / G03 Circular interpolation.
  • G16 – Polar Coordinates machining.
  • G41 / G42 – Cutter radius compensation.
  • G43 / G44 – Cutter length compensation along the axis that perpendicular to the selected plane.


G17 (XY Plane);
G18 (XZ Plane);
G19 (YZ Plane);

Learn about more G-Codes

Scroll to Top