HEIDENHAIN iTNC 530 (340 49x-02) ISO programming - Manual (Page 206)

206 6 Programming: Programming Contours
6.4 P
a
th Cont
ours—Car
te
sian Coor
dinat
e
s
Circular path G02/G03/G05 around circle
center I, J
Before programming a circular arc, you must first enter the circle
center I, J. The last programmed tool position will be the starting
point of the arc.
Direction
„ In clockwise direction: G02
„ In counterclockwise direction: G03
„ Without programmed direction: G05. The TNC traverses the circular
arc with the last programmed direction of rotation.
Programming
8 Move the tool to the circle starting point.
8 Enter the coordinates of the circle center.
8 Enter the coordinates of the arc end point.
Further entries, if necessary:
8 Feed rate F
8 Miscellaneous function M
Example NC blocks
Full circle
For the end point, enter the same point that you used for the starting
point.
N50 I+25 J+25 *
N60 G01 G42 X+45 Y+25 F200 M3 *
N70 G03 X+45 Y+25 *
The starting and end points of the arc must lie on the
circle.
Input tolerance: up to 0.016 mm (selected with MP7431).
S E
X
Y
I,J
3
X
Y
25=I 45
25=J
CC