Workpiece Coordinate System (G92) - Siemens Sinumerik 840D sl Programming Manual

Figure 3-2
3.1.2

Workpiece coordinate system (G92)

Before machining, you must create a coordinate system for the workpiece, the so-called
work piece coordinate system. This section describes different methods of setting, selecting
and changing a workpiece coordinate system.
Setting a tool coordinate system
The following two methods can be used to set a tool coordinate system:
1. With G92 in the part program
2. manually through the HMI operator panel
Format
(G90) G92 X... Y... Z... ;
The base point traverses to the specified position on outputting an absolute command. The
difference between tool tips and the base point is compensated through the tool length
compensation; this way the tool tip can traverse to the target position in any case.
ISO Milling
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
Reference
Motion commands
3.1 The coordinate system
37