HEIDENHAIN SW 68894x-02 - Manual (Page 545)

HEIDENHAIN CNC PILOT 640 545
8.2
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Milling
Milling – Approach and departure
Approach and departure are at rapid traverse (G0).
Milling – Safety clearances and oversizes
Approach and departure
 Approach – end face [ANMS]
 Approach – lateral surface [ANMM]
 Departure – end face [ABMS]
 Departure – lateral surface [ABMM]
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 and oversizes
Safety clearance in infeed direction [SMZ]
Distance between starting position and top edge of object to be
milled.
Safety clearance in milling direction [SME]
Distance between milling contour and side of mill.
Oversize in milling direction [MEA]
Oversize in infeed direction [MZA]