HEIDENHAIN TNC 320 - SL Cycles with Simple Contour Formula; Fundamentals

Fixed Cycles: Contour Pocket with Contour Formula
9.2 SL cycles with simple contour formula
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
9.2 SL cycles with simple contour
formula
Fundamentals
SL cycles and the simple contour formula enable you to form
contours by combining up to 9 subcontours (pockets or islands) in
a simple manner. You define the individual subcontours (geometry
data) as separate programs. In this way, any subcontour can be
used any number of times. The TNC calculates the contour from the
selected subcontours.
The memory capacity for programming an SL cycle
(all contour description programs) is limited to
128 contours. The number of possible contour
elements depends on the type of contour (inside
or outside contour) and the number of contour
descriptions. You can program up to 16384 elements.
Program structure: Machining with
SL cycles and complex contour
formula
0 BEGIN PGM CONTDEF MM
...
5 CONTOUR DEF P1= “POCK1.H“ I2 =
“ISLE2.H“ DEPTH5 I3 “ISLE3.H“
DEPTH7.5
6 CYCL DEF 20 CONTOUR DATA ...
8 CYCL DEF 22 ROUGH-OUT ...
9 CYCL CALL
...
12 CYCL DEF 23 FLOOR FINISHING ...
13 CYCL CALL
...
16 CYCL DEF 24 SIDE FINISHING ...
17 CYCL CALL
63 L Z+250 R0 FMAX M2
64 END PGM CONTDEF MM