HEIDENHAIN TNC 360 User Manual - Manual (Page 100)

TNC 360 5-16
5 Programming Tool Movements
Fig. 5.22: Incremental circle center coordinates
CC
e.g.
e.g.
1 e.g. 0 +/
5.4 Path Contours – Cartesian Coordinates
Y
X
IY
CC
IX
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.
• The circle center CC also serves as pole for polar coordinates
• CC defines a position as a circle center. The resulting contour is located on the circle, not on the circle center.
To program a circle center (pole):
COORDINATES?
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.
Resulting NC block: CC X+20 Y-10
2
e.g.
ENT
Y
X
0
ENT