LinuxCNC F: Set Feed Rate

F sets the feed rate to x, usually in machine units per minute. The feed rate application follows the Feed Rate Section unless inverse time feed rate mode or feed per revolution mode is in effect.

Source checked5/5 values · 2026-10-26

Specification

1 source

Language	gcode
Code	F
Syntax	Fx
Dialect	LinuxCNC

Parameters

Name	Description
x	Feed rate value; usually in machine units (inches or millimeters) per minute.

Study notes

x is usually in inches or millimeters per minute.
In inverse time feed rate mode or feed per revolution mode, feed rate application is described in the G93 G94 G95 section.
G94 is named in the document but has no matching reference id.