HEIDENHAIN TNC 320 User Manual page 91

Example: Using drilling cycles in connection with PATTERN DEF
The drill hole coordinates are stored in the
pattern definition PATTERN DEF POS and are called
by the TNC with CYCL CALL PAT:
The tool radii are selected so that all work steps
can be seen in the test graphics.
Program sequence
Centering (tool radius 4)
Drilling (tool radius 2.4)
Tapping (tool radius 3)
0 BEGIN PGM 1 MM
1 BLK FORM 0.1 Z X+0 Y+0 Z-20
2 BLK FORM 0.2 X+100 Y+100 Y+0
3 TOOL CALL 1 Z S5000
4 L Z+10 R0 F5000
5 PATTERN DEF
POS1( X+10 Y+10 Z+0 )
POS2( X+40 Y+30 Z+0 )
POS3( X+20 Y+55 Z+0 )
POS4( X+10 Y+90 Z+0 )
POS5( X+90 Y+90 Z+0 )
POS6( X+80 Y+65 Z+0 )
POS7( X+80 Y+30 Z+0 )
POS8( X+90 Y+10 Z+0 )
HEIDENHAIN TNC 320
Definition of workpiece blank
Call the centering tool (tool radius 4)
Move tool to clearance height (enter a value for F): the TNC positions
to the clearance height after every cycle
Define all drilling positions in the point pattern
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