
Chapter 11
Coordinate Control
11-15
Example 11.5
Work Coordinate System Off set (G92)
Program Block Comment
G54 G00; G54 work coordinate system.
X35. Z25.; RapidmovetoX35,Z25intheG54
work coordinate system.
G92X10.Z10.; Redefinescurrentaxis positionto have
thecoordinatesX10,Z10
The zero point of the offset G54 work coordinate system is 10 units away
from the current wheel location in both t he X and Z directions. If the Z
value had not been entered in the G92 block, the Z coordinate location
would have remained unchanged (Z25).
Figure 11.10
Results of Example 11.5
Machine coordinate system zero point
Zero pointfor theG54
work coordinate system
New zeropoint established
bytheG92 block
10
20 30
10
30
20
wheel position
Z
Z
X
X
12176-I
ATTENTION: G92 offsets are global. This means that
changing from one coordinate system to another does not cancel
the offset. Do not program a change in coordinate systems
(G54-G59.3) unless the effects of the offset have been
considered.
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