Circular Path G12/G13/G15 Around Pole I, J - HEIDENHAIN iTNC 530 User Manual

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
13
the arc end point between –99 999.9999° and
+99 999.9999°
U Direction of rotation DR
Example NC blocks
N180 I+25 J+25 *
N190 G11 G42 R+20 H+0 F250 M3 *
N200 G13 H+180 *
HEIDENHAIN iTNC 530 231