HEIDENHAIN TNC 128 (77184x-02) - Manual (Page 48)

First Steps with the TNC 128
1.3 Programming the first part
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TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014
Program layout
NC programs should be arranged consistently in a similar manner.
This makes it easier to find your place, accelerates programming
and reduces errors.
Recommended program layout for simple, conventional contour
machining
1 Call tool, define tool axis
2 Retract the tool
3 Pre-position the tool in the working plane near the contour starting
point
4 In the tool axis, position the tool above the workpiece, or
preposition immediately to workpiece depth. If required, switch on
the spindle/coolant
5 Contour approach
6 Contour machining
7 Contour departure
8 Retract the tool, end program
Further information on this topic
Contour programming: see "Tool movements in the program",
page 168
Layout of contour machining
programs
0 BEGIN PGM BSPCONT MM
1 BLK FORM 0.1 Z X... Y... Z...
2 BLK FORM 0.2 X... Y... Z...
3 TOOL CALL 5 Z S5000
4 Z+250 R0 FMAX
5 X... R0 FMAX
6 Z+10 R0 F3000 M13
...
16 X... R0 FMAX
17 Z+250 R0 FMAX M2
18 END PGM BSPCONT MM
Recommended program layout for simple cycle programs
1 Call tool, define tool axis
2 Retract the tool
3 Define the machining positions
4 Define the fixed cycle
5 Call the cycle, switch on the spindle/coolant
6 Retract the tool, end program
Further information on this topic
Cycle programming: see "Cycle fundamentals", page 371
Cycle program layout
0 BEGIN PGM BSBCYC MM
1 BLK FORM 0.1 Z X... Y... Z...
2 BLK FORM 0.2 X... Y... Z...
3 TOOL CALL 5 Z S5000
4 Z+250 R0 FMAX
5 PATTERN DEF POS1( X... Y... Z... ) ...
6 CYCL DEF...
7 CYCL CALL PAT FMAX M13
8 Z+250 R0 FMAX M2
9 END PGM BSBCYC MM