Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 4.INTERPOLATION FUNCTIONS
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4.15 SPIRAL INTERPOLATION, CONICAL INTERPOLATION
(G02,G03)
Spiral interpolation is enabled by specifying the circular interpolation
command together with a desired number of revolutions or a desired
increment (decrement) for the radius per revolution.
Conical interpolation is enabled by specifying the spiral interpolation
command together with one or two additional axes of movement, as
well as a desired increment (decrement) for the position along the
additional axes per spiral revolution.
Format
- Spiral interpolation
Xp-Yp plane
G02
G17 X_ Y_ I_ J_ Q_ L_ F_ ;
G03
Zp-Yp
plane
G02
G18 Z_ X_ K_ I_ Q_ L_ F_ ;
G03
Yp-Zp
plane
G02
G19 Y_ Z_ J_ K_ Q_ L_ F_ ;
G03
X,Y,Z:Coordinates of the end point
L :Number of revolutions (positive value without a
decimal point) (*1)
Q :Radius increment or decrement per spiral revolution
(*1)
I,J,K :Signed distance from the start point to the center
(same as the distance specified for circular
interpolation)
F:Feedrate

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