Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 608)

Thread Cutting
Chapter 25
25-8
Example 25.1
Parallel Thread Cutting
Thread lead: 5 threads/inch (.20 inch pitch)
Depth of cut: .7 inch (after final pass)
Number of cutting passes: 2
N1 M03 S50;
N2 G00 X1.5 Z2.2;
N3 X.9;
N4 G33 Z.8 F.2;
N5 Z.5 X1.2
N6 G00 X1.5;
N7 Z2.2;
N8 X.7;
N9 G33 Z.8 F.2;
N10 Z.5 X1.2
N11 G00 X1.5;
N12 Z2.2;
Figure 25.5
Parallel Thread Cutting Results from Example 25.1
Z
X
0.7
0.9
1.5
0.8 2.2
1.0
N2
N3
N8
N11
N4
N9
0.5
N7
N10
1.2 N5
N6
N12
If both E and F are programmed in the same block the right-most
parameter takes effect for that block.