FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
15. COMPENSATION FUNCTION
B–62764EN/01
274
G41 ;
:
G02 (or G03) X_ Y_ R_ ;
Above command specifies a new vector to be created to the left looking
toward the direction in which an arc advances on a line connecting the arc
center and the arc end point, and the tool center to move along the arc
advancing from the point of the old vector on the arc start point toward
that of the new vector. This is, however, established on assumption the
old vector is created correctly.
The offset vector is created toward the arc center or opposite direction
against the arc center.
R
(X, Y)
R
(X, Y)
Tool center path
New vector
Old vector
Programmed path
Start position
New vector
Tool center path
Old vector
Start position
Programmed path
D G02, G03
(Circular interpolation)

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