Example: Helix - HEIDENHAIN TNC 426 B User Manual

Example: Helix

0 BEGIN PGM HE IX MM
1 B K FORM 0.1 Z X+0 Y+0 Z-20
2 B K FORM 0.2 X+100 Y+100 Z+0
3 TOO DEF 1 +0 R+5
4 TOO CA 1 Z S1400
5 Z+250 R0 F MAX
6 X+50 Y+50 R0 F MAX
7 CC
8 Z-12.75 R0 F1000 M3
9 APPR PCT PR+32 PA-180 CCA180 R+2
R F100
10 CP IPA+3240 IZ+13.5 DR+ F200
11 DEP CT CCA180 R+2
12 Z+250 R0 F MAX M2
13 END PGM HE IX MM
To cut a thread with more than 16 revolutions
...
8 Z-12.75 R0 F1000
9 APPR PCT PR+32 PA-180 CCA180 R+2 R
10 B 1
11 CP IPA+360 IZ+1.5 DR+ F200
12 CA B 1 REP 24
13 DEP CT CCA180 R+2
HEIDENHAIN TNC 426 B, TNC 430
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Y
100
50
Define the workpiece blank
Define the tool
tool call
Retract the tool
Pre-position the tool
Transfer the last programmed position as the pole
Move to working depth
Approach the contour on a circular arc with tangential
connection
Helical interpolation
Depart the contour on a circular arc with tangential connection
Retract in the tool axis, end program
F100
Identify beginning of program section repeat
Enter the thread pitch as an incremental IZ dimension
Program the number of repeats (thread revolutions)
CC
X
50 100
117