User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

5 Programming Tool Movements
5.4 Path Contours - Cartesian Coordinates
5-22
Direction of rotation and arc shape
This direction of rotation determines whether the arc is
• convex (curved outward) or
• concave (curved inward)
To program a circular arc with defined radius:
G
e.g. X 1 0
e.g. R 5
Y
0 2
+/
2
END
If necessary, enter also:
• Radius compensation
• Feed rate
• Miscellaneous function
Resulting NC block: G02 G41 X+10 Y+2 R–5
Fig. 5.29: Convex path
G02 G41 (R0)
Fig. 5.30: Concave path
Program the circle with Cartesian coordinates and clockwise rotation.
Enter the coordinates of the arc end point, for example X = 10 mm,
Y = 2 mm.
Enter the arc radius, for example R = 5 mm, and determine the size of
the arc using the algebraic sign, here the negative sign.
TNC 360