NCT Group 2000M, 99M manual G17 G03 X0 Y100 Z20 R100 F150

4 The Interpolation

The feed specified at address F is effective along the circle path. Feed component Fq along axis q is obtained from the relationship

where

Lq: displacement along axis q,

Larc: length of circular arc,

F: programmed feed,

Fq: feed along axis q.

For example:

Fig. 4.4-1

G17 G03 X0 Y100 Z20 R100 F150

The series of instructions

define a multi-dimensional spatial helical interpolation in which q, r, s are optional axes not involved
in the circle interpolation.
For example, series of instructions
G17 G3 X0 Y-100 Z50 V20 I-100
will move the tool along the superficies of an
oblique cylinder if V is an axis parallel to Y.
L Notes:
– Whenever parameter HELICALF in the field
of parameters is set to 1, the control will
implement the programmed feed along
the spatial path.
– In the case of the circle specified in the
selected plane having a varying radius,
the interpolation will be carried out
along the superficies of the specified	Fig. 4.4-2
cone.

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