HEIDENHAIN TNC 640 (34059x-04) - Manual (Page 441)

Inclined-tool machining in a tilted machining plane (software
option 2)
12.3
12
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
441
Inclined-tool machining via normal vectors
Only one directional vector can be defined in the LN
block. This vector defines the incline angle (normal
vector
NX, NY, NZ, or tool direction vector TX, TY,
TZ).
Retract the tool
Activate M128
Define any PLANE function; consider the positioning behavior
Execute program with LN block in which the tool direction is
defined by a vector
Example NC blocks
...
12 L Z+50 R0 FMAX M128
Position at clearance height, activate M128
13 PLANE SPATIAL SPA+0 SPB+45 SPC+0 MOVE ABST50
F1000
Define and activate the PLANE function
14 LN X+31.737 Y+21.954 Z+33.165 NX+0.3 NY+0 NZ
+0.9539 F1000 M3
Set the incline angle with the normal vector
... Define machining in the tilted working plane