Fagor 8070 BL - Helical Interpolation (G02;G03)

Programming manual.
CNC 8070
PATH CONTROL.
8.
Helical interpolation (G02/G03).
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(REF: 1709)
8.6 Helical interpolation (G02/G03).
Helical interpolation consists of a circular interpolation in the work plane and a linear
movement of the rest of the axes programmed. If the helical interpolation is supposed to
make more than one turn, the helical pitch must be defined.
Programming.
Program along with the circular interpolation using the functions G02, G03, G08 or G09 and
then the linear movement for the other axes. If the helical interpolation is supposed to make
more than one turn, the helical pitch must be defined.
Programming format.
The programming format is the following; the arguments appear between curly brackets and
the optional ones, between angle brackets. The format for the circular interpolation is
explained in the corresponding chapters.
G02/G03 (circular interpolation) X..C{linear_movement} <I..K{pitch}>
G08 (circular interpolation) X..C{linear_movement} <I..K{pitch}>
G09 (circular interpolation) X..C{linear_movement} <I..K{pitch}>
End point on the work plane.
For helical interpolation in various turns, it is not necessary to define the coordinates for the
end point in the work plane. This point will be calculated by the CNC depending on the height
and pitch of the helix.
(A) Simple helical interpolation.
(B) Multi-turn helical interpolation.
X..C{linear_movement} Linear movement of the helical interpolation for one or several axes.
Units: mm or inches.
I..K{pitch} Helical pitch.
Units: mm or inches.
G01 G90 X-50 Y0 Z0
G02 G17 I50 J0 Z100 K37
G01 G90 X-50 Y0 Z0
G02 G17 X50 Y0 R50 Z110 K25
G01 G90 X-50 Y0 Z0
G02 R50 Q90 I50 J0 Z-90 K17
G01 G90 X-50 Y50 Z0
G01 Y0
G08 X50 Y0 Z58.45 K10.25
G01 G90 X-50 Y50 Z0
G01 Y0
G08 R50 Q65 Z69.45 K15.25
G01 G90 X-50 Y0 Z0
G09 G17 X65 Y-12.9 I32 J56.78 Z-88 K12
G01 G90 X-50 Y0 Z0
G09 G17 R45 Q-33 I32 J56.78 Z88 K11
(A) (B)