
12. Tool Compensation Functions
12.4 Tool Radius Compensation
188
‚’ ’
‚’ ’
Tool center path
Program path
Circular center
Circular center
G42
G41
G41
G41
G41
G42
Circular
→
Circular
Linear return
Tool center path
Program path
G41
G42
r
Tool center
path
Program
path
Uncut section
Arc exceeding 360
°
due to compensation
G41
G42
G42
In the case below, it is possible that the arc
may exceed 360
°
a. With offset direction selection based on
G41/G42
b. I, J, K was commanded in G40.
In cases like this the tool center path will pass
through a section where the arc is doubled
due to the compensation and a section will be
left uncut.