
B-63782EN/01 NC FUNCTIONS 7.COORDINATE SYSTEM
- 97 -
- Example 2
Set the reference point on the tool holder or turret as shown in the
figure below, then specify G92 at the beginning of the program. By
specifying an absolute command in this condition, the reference point
is moved to a specified position.
To move the tool tip to a specified position, compensate the distance
between the reference point and the tool tip by using tool length
compensation.
X
Z
600.0
0
Reference
osition
1200.0
G92 X60.0 Z1200.0 ;
Setting the start point at a given
reference point on the tool
holde
When a new workpiece coordinate system is created by specifying G92,
it is determined so that a given point on the tool has a given coordinate
value.
So, there is no need to be concerned with old workpiece coordinate
systems.
Particularly when the start point for machining is determined based on
the workpiece, the G92 command is useful. In this case, a desired
coordinate system can newly be created even if an old workpiece
coordinate system is invalid.