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2 G Code
2 - 10 NJ/NY-series G code Instructions Reference Manual (O031)
 The following shows circular interpolation with Arc radius specification
(radius < 0)
:
N010 G90 .................. Absolute dimension
N011 G17 .................. XY Plane selection
N012 G02 X140 Y50 R-40 F300
:
When radius < 0, a circle larger than a semicircle is drawn.
 The following shows circular interpolation with Arc radius specification
(radius > 0)
:
N010 G91 .................. Incremental dimension
N011 G17 .................. XY Plane selection
N012 G02 X40 Y40 R40 F300
:
When radius > 0, a circle smaller than a semicircle is drawn.
Y
X
50
90
10
100 50
Current position
Center
Target Position
Y
X
50
90
10
100 50
Current position
Center
Target Position