It allows the machine to reference a specific part location just like the standard G54 to G59 offsets.
On many CNC machines, particularly Haas, is an "Extra Work Offset".
For Unidex 600 series controllers, it may be used to set specific task or axis parameters in conjunction with an "F" word value. 3. Alternative Technical Contexts If the video is not about CNC machining, G129 may refer to: