HUST CNC H6D-T - Page 90

HUST CNC H6D-T Manual
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Specifications: Thread pitch F= 2 mm,
cutting lead starts S1 = 3 mm,
cutting lead ends S2 = 3 mm,
Thread depth = 1.4 mm (in diameter) by 2 cuts
Fig. 3-18 Non-tapered Thread Cutting
N10 G0 X30.0 Z50.0
N20 M03 S2000
N30 G0 U-17.000 (first cut = 1.0/2mm)
N40 G32 W-26.000 F2.00
N50 G0 U17.000
N60 W26.000
N70 G0 U-17.400 (second cut = 0.4/2mm)
N80 G32 W-26.000 F2.00
N90 G0 U17.400
N100 W26.000
N110 M05
N120 M02
Ex 2 : Tapered thread cutting
G32 X(U) _____ Z(W) _____ F _____ R _____ Q _____ E _____
X, Z : End point of thread cutting in absolute coordinates.
U, W : End point of thread cutting in incremental coordinates relative to the
start point.
F : Thread pitch.
R : Half of the difference (diameter) between the greater and smaller ends
of the tapered thread.
Q : Start-angle of thread cutting; default value: Q=0 (range of angle is
X
Z
20 mm
3
3
17/2 m m