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HEIDENHAIN TNC 320 (77185x-01) Cycle programming User Manual

Page 78

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Fixed Cycles: Drilling

3.7

BACK BORING (Cycle 204, DIN/ISO: G204)

3

78

TNC 320 | User's Manual Cycle Programming | 3/2014

Danger of collision!

Check the position of the tool tip when you program
a spindle orientation to the angle that you enter in
Q336 (for example, in the Positioning with Manual

Data Input mode of operation). Set the angle so that
the tool tip is parallel to a coordinate axis. Select a
disengaging direction in which the tool moves away
from the edge of the hole.