Programming manual.
CNC 8070
PATH CONTROL.
8.
Circular interpolation (G02/G03).
·159·
(REF: 1709)
8.3.10 Cartesian coordinates. Arc center in absolute coordinates (modal)
(G261/G262).
Function G261 indicates that the absolute coordinates are defined by the center of the arc,
relative to the origin of the active reference system (part zero, polar origin, etc.). Function
G262 cancels function G261 and the arc center is then defined according to the starting point
of the arc.
Programming. Arc center in absolute coordinates (G261).
The function G261 may be programmed alone in the block or it may be added to a movement
block. The function G261 is modal; after it has been programmed, it remains active until an
incompatible function is programmed (G262).
Programming format.
The programming format is the following; the arguments appear between curly brackets and
the optional ones, between angle brackets.
G02/G03 G261 <X..C{end_point}> <I..K{center}>
Programming. Arc center referred to starting point (G262).
The function G262 may be programmed alone in the block or it may be added to a movement
block. The function G262 is modal; after it has been programmed, it remains active until an
incompatible function is programmed (G261).
Programming format.
The programming format is the following; the arguments appear between curly brackets and
the optional ones, between angle brackets.
G02/G03 G261 <X..C{end_point}> <I..K{center}>
X..C{end_point} Optional. End point of the arc.
Units: Millimeters, inches or degrees.
I..K{center} Optional. Arc center in absolute coordinates.
Units: mm or inches.
G02 G261 X50 Y0 I38 J5
G261
G02 X50 Y0 I38 J5
X..C{end_point} Optional. End point of the arc.
Units: Millimeters, inches or degrees.
I..K{center} Optional. Arc center in absolute coordinates.
Units: mm or inches.
G02 G261 X50 Y0 I38 J5
G261
G02 X50 Y0 I38 J5
X
G02 G261
Y
R
X,Y
I,J
G02 G262
Y
R
X,Y
I,J
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