HEIDENHAIN TNC 370 User Manual page 115

5 Programming Tool Movements
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5.4 Path Contours - Cartesian Coordinates
Entering CC in relative values
If you enter the circle center with relative coordi-
nates, you have defined it relative to the last
programmed tool position.
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J
Fig. 5.23: Incremental circle center coordinates
* The circfo cwmw CC also %wves aa pole for polar ~aar&n@ite%.
l
CC defines a position as a circle center. The resulting contour is located on the circle, not on the circle
center.
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To program a circle center (pole):
e.g.0 0
Y
\
e.g.
)
Resulting NC block: CC X+20 Y-IO
Select the coordinate axis, for example X
Enter the coordinate for the circle center in this axis, for example
X = 20 mm.
Select the second coordinate axis, for example Y.
Enter the coordinate of the circle center, for example Y = -10 mm.
Conclude the block.
5-16
TNC 370 -