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[Editor’s note: In our summer edition, we continue with part 2 of Mark Cicchetti’s excellent, detailed explanation of
tapering that we published in the Spring 2024 edition of EDM Today Magazine.]
Standard Conical Example

In this example, notice there is a 5-degree taper applied to the square with 0.125” corner radii. The taper gets
applied to the corners, and the radii become “cone” shaped, and the line segments don’t change in length from
top to bottom, hence the term “conical” – see Figure 1.

The following program code would be used:

N11 G90
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N12 G92 X0 Y0
N13 G92 X0 Y0 J.75000 I-.75000 (Program Plane and
Thickness as described in the 1st example)
N14 M15 P1 (Here is the M15 P1 again for the Taper “A”
mode)
N15 M20
N16 M78
(ROUGH PRIMARY CUT)
N17 E001
N18 M90
N19 M80
N20 M82
N21 M84
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N22 G41 G01 X.50000 A-5. H01 (5 degree taper Angle)
N23 Y.37500
N24 G03 X.37500 Y.50000 I-.12500 J0
N25 G01 X-.37500
N26 G03 X-.50000 Y.37500 I0 J-.12500
N27 G01 Y-.37500
N28 G03 X-.37500 Y-.50000 I.12500 J0
Figure 1
N29 G01 X.37500
N30 G03 X.50000 Y-.37500 I0 J.12500
N31 G01 Y0
N32 G40 X0 A0.
N33 G04 X4.5
N34 M21
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N35 M02

Figure 2 shows the Accutex control screen image
of the NC/Taper Set Page. These items can be set
either manually or by the NC program.

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Figure 2

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