HEIDENHAIN iTNC 530 (606 42x-02) ISO programming - Manual (Page 232)

232 Programming: Programming Contours
6.5 P
a
th Cont
ours—P
o
lar Coor
dinat
e
s
Circular path G16 with tangential connection
The tool moves on a circular path, starting tangentially from a
preceding contour element.
U Polar coordinate radius R : Enter the distance from
are end point to the pole I, J
U Polar coordinates angle H : Angular position of the
arc end point
Example NC blocks
X
Y
40
35
CC
30°
120°
R30 R25
N120 I+40 J+35 *
N130 G01 G42 X+0 Y+35 F250 M3 *
N140 G11 R+25 H+120 *
N150 G16 R+30 H+30 *
N160 G01 Y+0 *
The pole is not the center of the contour arc!
16