Siemens SINUMERIK 840D sl Programming Manual page 420

Transformations
6.8 Kinematic transformation
To avoid damage to the groove side OFFN acts only when the tool radius compensation is
active. Furthermore, OFFN should also be >= the tool radius to avoid damage occurring to
the opposite side of the groove.
A parts program for milling a groove generally comprises the following steps:
1. Selecting a tool
2. Select TRACYL
3. Select suitable coordinate offset (frame)
4. Position
5. Program OFFN
6. Select TRC
7. Approach block (position TRC and approach groove side)
8. Groove center line contour
9. Deselect TRC
10. Retraction block (retract TRC and move away from groove side)
11. Position
12. TRAFOOF
13. Re-select original coordinate shift (frame)
420
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Job Planning