Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 357)

Coordinate Control
Chapter 13
13-5
Figure 13.3
Results of Example 13.2
After executing
block N03
After executing
block N02
After executing
block N04
30
•
10
•
X
X
X
Y Y
Y
Center point
for rotation
in block N03
Rotating the work coordinate system can be helpful anytime a part has a
repetitive shape. This feature combined with the G52 work coordinate
system shift can reduce the size of a part program appreciably. The
following program is an example of this.
Example 13.3
G68 Coordinate Rotation With G52 Coordinate System Shift
Main Program Subprogram 1000
G17 G90 G00 X0 Y0; G01 X45. Y15. F500.;
G00 G90 X40 Y45.; X65.;
M98 P1000 L4; X70. Y45.;
M30; G68 X55. Y60. R90.;
M99 ;