Siemens SINUMERIK 828D Programming Manual page 228

Motion commands
9.6 Circular interpolation
Example 2: Turning
Program code
N125 G1 X40 Z-25 F0.2
N130 G111 X33.33 Z-54.25
N135 G3 RP=30 AP=142.326
N140 G1 Z-95
228
X
3
25 25
54.25 54.25
95 95
Z
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals