HEIDENHAIN SW 688945-03 - Manual (Page 523)

HEIDENHAIN CNC PILOT 620/640 523
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Centric predrilling – Approach and departure
Centric predrilling – Safety clearances
Approach and departure
 Traverse for predrilling [ANB]
 Traverse for tool change [ABW]
Approach/departure strategy:
 1: Move simultaneously in X and Z directions
 2: First X, then Z direction
 3: First Z, then X direction
 6: Coupled motion; X precedes Z direction
 7: Coupled motion; Z precedes X direction
Safety clearances
Safety clearance on blank part[ SAB]
Internal safety clearance [SIB]
Retraction distance for deep-hole drilling ("B" for G74).