HEIDENHAIN TNC 360 ISO Programming - Manual (Page 113)

5-30
5 Programming Tool Movements
TNC 360
Fig. 5.36: Circular path around a pole
5.5 Path Contours - Polar Coordinates
3 0 H
2 1 G
H
R
G13
E
S
X
Y
J
I
END
Circular path G12/G13/G15 around pole I, J, K
The polar coordinate radius is also the radius of the arc. It is already
defined by the distance from the POLE to the starting point
S .
Input
• Polar coordinate angle H for arc end point
• You can enter values from –5400° to +5400° for H.
Defining the direction of rotation
You can program the following directions of rotation:
• Clockwise direction of rotation G12
• Counterclockwise direction of rotation G13
• No direction of rotation defined G15
The tool moves in the direction of
rotation defined in an earlier block.
Program the circle with polar coordinates and clockwise rotation.
Enter the angle of the arc end point, for example H = 30°.
Terminate the block.
If necessary, enter also:
Radius compensation R
Feed rate F
Miscellaneous function M
Resulting NC block: G12 H30 *