Programming manual
CNC 8070
TOOL PATH CONTROL
Circular interpolation (G02/G03)
6.
(SOFT V02.0X)
97
6.3.1 Cartesian coordinates (Arc center programming)
The arc is defined by programming function G02 or G03 followed by
the coordinates of the arc's end point and those of its center (referred
to the starting point of the arc) according to the axes of the active work
plane.
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.
If they are not programmed or are the same as the starting point, a
full circle will be executed.
Arc center coordinates
The arc center coordinates are defined by the letters "I", "J" or "K"
depending on the active plane.
When the center coordinate on an axis is "0", it does not have to be
programmed. These coordinates are not affected by functions G90
and G91.
Depending on the active work plane, the programming format is:
G17 G18 G19 Letters "I", "J" and "K" are associated with the first,
second and third axis of the channel respectively.
G20 Letters "I", "J" and "K" are associated with the
abscissa, ordinate and perpendicular axes of the
defined plane.
XY plane (G17) G02/G03 X... Y... I... J...
ZX plane (G18) G02/G03 X... Z... I... K...
YZ plane (G19) G02/G03 Y... Z... J... K...
Circular interpolation programming by defining the center.
...
G02 X60 Y15 I0 J-40
...
N10 G17 G71 G94
N20 G01 X30 Y30 F400
N30 G03 X30 Y30 I20 J20
N40 M30
N10 G19 G71 G94
N20 G00 Y55 Z0
N30 G01 Y55 Z25 F400
N40 G03 Z55 J20 K15
N50 Z25 J-20 K-15
N60 M30
XY
XY
YZ
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