HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 10)

11
Fundamentals
S = Start; E = End
Tool Compensation
The TNC compensates the length L and radius R of the tool during
machining.
Length compensation
Beginning of effect:
Tool movement in the spindle axis
End of effect:
Tool exchange or tool with the length L=0
Radius compensation
Beginning of effect:
Tool movement in the working plane with RR or RL
End of effect:
Execution of a positioning block with R0
Working without radius compensation (e.g. drilling):
Tool movement with R0