HEIDENHAIN TNC 410 - Manual (Page 92)

79 HEIDENHAIN TNC 410
The only effect of CC is to define a position as a circle
center — the tool does not move to the position.
The circle center also serves as the pole for polar
coordinates.
Circular path C around circle center CC
Before programming a circular path C, you must first enter the
circle center CC. The last programmed tool position before the C
block is used as the circle starting point.
ú Move the tool to the circle starting point.
ú Enter the coordinates of the circle center.
ú Enter the coordinates of the arc end point
ú Direction of rotation DR
Further entries, if necessary:
ú Feed rate F
ú Miscellaneous function M
Example NC blocks
5 CC X+25 Y+25
6 L X+45 Y+25 RR F200 M3
7 C X+45 Y+25 DR+
Full circle
Enter the same point you used as the starting point for the end
point in a C block.
The starting and end points of the arc must lie on the
circle.
Input tolerance: up to 0.016 mm.
X
Y
25 45
25
CC
DR+
DR–
S E
X
Y
CC
6.4 P
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