NCT Group 2000M, 99M manual Circular and Spiral Interpolation G02, G03

4 The Interpolation

4.3 Circular and Spiral Interpolation (G02, G03)

The series of instructions specify circular interpolation.

A circular interpolation is accomplished in the plane selected by commands G17, G18, G19 in clockwise or counter-clockwise direction (with G02 or G03, respectively).

Fig. 4.3-1

Here and hereinafter, the meanings of Xp, Yp, and Zp are: Xp: axis X or its parallel axis,

Yp: axis Y or its parallel axis,

Zp: axis Z or its parallel axis.

The values of Xp, Yp, and Zp are the end-point coordinates of the circle in the given coordinate system, specified as absolute or incremental data.

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