Circular path g12/g13/g15 around pole i, j, 5 p a th cont ours—p o lar coor dinat e s – HEIDENHAIN iTNC 530 (606 42x-01) ISO programming User Manual
Page 211
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HEIDENHAIN iTNC 530
211
6.5 P
a
th Cont
ours—P
o
lar Coor
dinat
e
s
Circular path G12/G13/G15 around pole I, J
The polar coordinate radius R is also the radius of the arc. R is defined
by the distance from the starting point to the pole I, J. The last
programmed tool position will be the starting point of the arc.
Direction of rotation
In clockwise direction: G12
In counterclockwise direction: G13
Without programmed direction: G15. The TNC traverses the circular
arc with the last programmed direction of rotation
U
Polar-coordinates angle H
: Angular position of the
arc end point between –99 999.9999° and
+99 999.9999°
U
Direction of rotation DR
Example NC blocks
X
Y
25
25
R20
CC
N180 I+25 J+25 *
N190 G11 G42 R+20 H+0 F250 M3 *
N200 G13 H+180 *
13
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