
6. Interpolation Functions
6.11 Exponential Function Interpolation; G02.3, G03.3
82
The taper gradient angle (i1) and torsion angle (j1) are each issued with the command address I
and J.
Note that if the shape is a reverse taper shape, the taper gradient angle (i1) is issued as a negative
value.
The torsion direction (
ω
) is changed with the G code. (Forward rotation when G02.3 is commanded,
negative rotation when G03.3 is commanded)
The above settings allow uniform helix machining of a taper shape (or reverse taper shape).
Command and operation
G2.3(Equivalent to G3.3 if j1<0)
X movement direction > 0
X movement direction < 0
i1>0 i1<0 i1>0 i1<0
Command
i1
X
Z
End
point
j1
r1
Start
point
-
X
Z
+
j1
i1
r1
End
point
Start
point
X
Z
j1
i1
r1
Start
point
End
point
End
point
Start
point
X
Z
+
-
j1
i1
r1
Operation
X
A
X
A
X
A
X
A
Machining
program example
N10 G28XYZC;
N20 G91G0 X100. Z100.;
N30 G2.3 X100. Z100.
I50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X100. Z200.;
N30 G2.3 X100. Z-100.
I-50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X-100. Z100.;
N30 G2.3 X-100. Z100.
I50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X-100. Z200.;
N30 G2.3 X-100. Z-100.
I-50. J80. R105. F500.;
N40 M30;
G3.3(Equivalent to G2.3 if j1<0)
X movement direction > 0
X movement direction < 0
i1>0 i1<0 i1>0 i1<0
Command
End
point
Start
point
X
Z
j1
i1
r1
End
point
Start
point
-
X
Z
+
j1
r1
Start
point
End
point
X
Z
j1
i1
r1
End
point
Start
point
X
Z
+
-
j1
i1
r1
Operation
X
A
X
A
X
A
X
A
Machining
program example
N10 G28XYZC;
N20 G91G0 X100. Z100.;
N30 G3.3 X100. Z100.
I50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X100. Z200.;
N30 G3.3 X100. Z-100.
I-50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X-100. Z100.;
N30 G3.3 X-100. Z100.
I50. J80. R105. F500.;
N40 M30;
N10 G28XYZC;
N20 G91G0 X-100. Z200.;
N30 G3.3 X-100. Z-100.
I-50. J80. R105. F500.;
N40 M30;