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\viewkind4\uc1\pard\qc\cf1\lang2057\b\f0\fs24 G0\f1 3\f0 \f1 Anti \f0 Clockwise arc with Centre Offsets
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\par When programming arcs using absolute values (G90), the X and Y values describe the end point of the arc, in relation to the datum position of the workpiece. The arc end point is sometimes referred to as the target position.
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\par When programming arcs using incremental values (G91), the X and Y values relate to the distance moved along the X and Y axes, from the start point of the arc to the end point of the arc. The sign of the X and Y axis moves (+/-) will depend on the movement of the machine slides in relation to their start position.\cf1\b\fs24
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