
Coordinate Control
Chapter 11
11-16
Example 11.6 shows the effect of changing work coordinate systems while
the G92 offset is active:
Example 11.6
Changing Work Coordinate Systems With Offset Active
Program Comment
N1 G10L2P1X0Z0; DefineG54 work coordinatesystem zero pointtobe posi tioned
X0, Z0 away from the machine coordinate system
N2 G10L2P2X20.Z25.; Define G55 work coordinatesystemzero point tobepositioned
X20, Z25 away from the machine coordinate system
N3 G55X10.Z5.; Move to X10, Z5 in the G55 work coordinate system
N4 G54X10.Z5.; Move to X10, Z5 in the G54 work coordinate system
N5 G92X-5.Z-5.; Offsetcurrentwheel position tobe at X-5,Z-5
N6 X15.Z0.; Move to X15, Z0 (offsetstill active)
N7 G55X10.Z5.; Move back to X10,Z5 in the G55 work coordinate system with the
G92 of fsetstill active
Figure 11.11
Results of Example 11.6
Zero pointfor theG54
work coordinate system
N3
Zero pointfor theG55
work coordinate system
New zeropoint established
bytheG92 block
N6
N7
Final move toX10, Z5
afterG92 offsetwas
activatedi n previous
work coordinate system
N4
X
X
X
Z
Z
Z
10 20 30
10 20 30
30
30
20
10
12177-I
In Example 11.6, the G92 offset, entered while the G54 work coordinate
system was active, has also shifted the G55 coordinate system. Any offsets
described in this section alter all of the work coordinate systems (G54 -
G59) at the same time.
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