LinuxCNC G28.1

G28.1 is a LinuxCNC G-code that stores the current absolute position into parameters 5161-5166. It is used to set the predefined position that G28 later moves to.

Source checked3/3 values · 2026-10-26

Specification

1 source

Language	gcode
Code	G28.1
Group	Go/Set Predefined Position
Syntax	G28.1
Dialect	LinuxCNC

Study notes

G28.1 stores the current absolute position into parameters 5161-5166.
G28 uses values stored in parameters 5161-5169 as the final point for a rapid move to the predefined position.
If no positions are stored with G28.1, G28 moves all axes to the machine origin.

Safety

Only use G28 when the machine is homed to a repeatable position and the desired G28 position has been stored with G28.1.
Cutter compensation must be off; programming G28.1 with cutter compensation on is an error.