Local Coordinate System (G52) - Siemens Sinumerik 840D sl Programming Manual

Motion commands
3.1 The coordinate system
Example
The tool in operation with G54 is positioned at (190, 150), and the workpiece coordinate
system 1 (X' - Y') is created each time in G92X90Y90 with a shift of Vector A.
Figure 3-3
3.1.6

Local coordinate system (G52)

For programming simplification, a type of workpiece coordinate system can be setup to
create a program in the workpiece coordinate system. This part coordination system is also
called local coordinate system.
Format
G52 X... Y... Z... ; Setting the local coordinate system
G52 X0 Y0 Z0 ; Deselection of the local coordinate system
X, Y, Z: Origin of the local coordinate system
Explanations
G52 can be used to program work offsets for all path and positioning axes in the direction of
the specified axis. This way one can work with changing zero points, e.g. during repetitive
machining operations at different workpiece positions.
G52 X... Y... Z... is a work offset around the offset values programmed in the relevant
specified axis directions. The last specified adjustable work offset (G54 to G59, G54 P1 -
P93) serves as reference.
40
Example of setting coordinates
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling