HEIDENHAIN TNC 426 B User Manual page 207

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The machining data (such as milling depth, finishing allowance and
setup clearance) are entered as CONTOUR DATA in Cycle 20.
Overview of SL cycles
Cycle
14 CONTOUR GEOMETRY (essential)
20 CONTOUR DATA (essential)
21 PILOT DRILLING (optional)
22 ROUGH-OUT (essential)
23 FLOOR FINISHING (optional)
24 SIDE FINISHING (optional)
Enhanced cycles:
Cycle
25 CONTOUR TRAIN
27 CYLINDER SURFACE
192
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Program structure: Working with SL cycles
0
BEGIN PGM SL2 MM
...
12
Y L DEF 14.0 contour geometry ...
Soft key
13
Y L DEF 20.0 contour data ...
...
16
Y L DEF 21.0 pilot drilling ...
17
Y L
...
18
Y L DEF 22.0 rough-out ...
19
Y L
...
22
Y L DEF 23.0 floor finishing ...
23
Y L
...
26
Y L DEF 24.0 side finishing ...
27
Y L
...
50
L Z+250 R0 FMAX M2
51
LBL 1
Soft key
...
55 LBL 0
56 LBL 2
...
60
LBL 0
...
99
END PGM SL2 MM
ALL
ALL
ALL
ALL
8 Programming: Cycles

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