Fagor CNC 8070, Programming Manual, Page: 132 / 556

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Programming manual
120
CNC 8070
6.
TOOL PAT
H
CONTROL
Ci
rc
ul
ar
i
n
te
rp
ol
a
ti
on
(G
02
/G
03)
(S
OFT
V02.0
X
)
98
6.3.2 Cartesian coordinates (Radius programming)
The arc is defined by programming function G02 or G03 followed by
the coordinates of the arc's end point and its radius.
Coordinates of the arc's final point
It is defined with its coordinates along the axes of the active work plane
and may be given in either absolute or incremental coordinates.
Arc radius
The arc radius is defined with the letter "R" or using assignments
"R1=<radius>" or "G263=<radius>". The radius value stays active
until a new value is assigned or an arc is programmed using the center
coordinates or a movement is programmed in polar coordinates.
If the arc is smaller than 180º, the radius will be programmed with a
positive sign and with a negative sign if it is greater than 180º. This
way and depending on the selected circular interpolation (G02 or
G03), the desired arc will be defined.
Depending on the active work plane, the programming format is:
Arc 1 G02 X... Y... R-...
Arc 2 G02 X... Y... R+...
Arc 3 G03 X... Y... R+...
Arc 4 G03 X... Y... R-...
XY plane (G17) G02/G03 X... Y... R+/-
ZX plane (G18) G02/G03 X... Z... R+/-
YZ plane (G19) G02/G03 Y... Z... R+/-