cnc milling programing pdf

cnc milling programing

1. G CODES -
2. G85
3. (BORING).
4. A G85 (Boring) command is written in the following
5. format:
6. please refer to page 52 for the variable definitions.
7. (G9Ø) (G98)
8.  or or
9. (G91) (G99)
10. G85 X.... Y.... Z.... R.... F.... ;
11. + Z AXIS DIRECTION.
12. Sequence of moves:
13. Op 1) Rapid position to X, Y and Z (the initial level).
14. Op 2) Rapid traverse to R point level.
15. Op 3) Feed in to the Z depth.
16. Op 4) Feed back to R point level.
17. If the G98 code is programmed within the cycle, the
18. next move will be a rapid traverse to the Initial level. If
19. the G99 code is programmed within the cycle, there
20. will be no movement.

NØØ4Ø MØ6 TØ1 ;

2. NØØ5Ø G9Ø GØØ X1Ø Y3Ø Z12 S1ØØØ MØ3 ;
3. NØØ6Ø G99 G81 X1Ø Y3Ø Z-17 R2 F75 ;
4. NØØ7Ø Y1Ø ;
5. NØØ8Ø X3Ø ;
6. NØØ9Ø G98 Y3Ø ;
7. NØ1ØØ G99 X9Ø ;
8. NØ11Ø Y1Ø ;
9. NØ12Ø X11Ø ;
10. NØ13Ø G98 Y3Ø ;
11. NØ14Ø G91 G8Ø G28 XØ YØ ZØ MØ5 ;
12. NØ15Ø MØ6 TØ2 ;
13. NØ16Ø G9Ø GØØ X6Ø Y28 Z12 S75Ø MØ3 ;
14. NØ17Ø G99 G83 X6Ø Y28 Z-17 Q6 R2 F6Ø ;
15. NØ18Ø G98 Y12 ;
16. NØ19Ø G91 G8Ø G28 XØ YØ ZØ MØ5 ;
17. NØ2ØØ M3Ø ;
18. Tool change.
19. Tool position to initial level.
20. Hole 1 retract R point.
21. Hole 2 retract R point.
22. Hole 3 retract R point.
23. Hole 4 retract initial level.
24. Hole 5 retract R point.
25. Hole 6 retract R point.
26. Hole 7 retract R point.
27. Hole 8 retract initial level.
28. Home position spindle stop.
29. Tool change.
30. Tool position initial level.
31. Hole 9 retract R point.
32. Hole 1Ø retract initial level.
33. Home position spindle stop.
34. Program stop.