HEIDENHAIN TNC 620 User Manual page 459

12.3 Inclined-tool machining in a tilted
plane (option 9)
Function
In combination with M128 and the new PLANE functions,
tool machining on a tilted machining plane is now possible. Two
possibilities are available for definition:
Inclined-tool machining via incremental traverse of a rotary axis
Inclined-tool machining in a tilted machining plane
only functions with spherical cutters.
Inclined-tool machining via incremental traverse of a
rotary axis
Retract the tool
Define any PLANE function; consider the positioning behavior
Activate M128
Via a straight-line block, traverse to the desired incline angle in
the appropriate axis incrementally
Example NC blocks
...
N12 G00 G40 Z+50*
N13 PLANE SPATIAL SPA+0 SPB-45 SPC+0 MOVE DIST50
F900*
N14 M128*
N15 G01 G91 F1000 B-17*
...
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Inclined-tool machining in a tilted plane (option 9) 12.3
inclined-
Position at clearance height
Define and activate the PLANE function
Activate M128
Set the incline angle
Define machining in the tilted working plane
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