HEIDENHAIN TNC 620 User Manual page 93

Fundamentals | Creating and entering NC programs
Example
0 BEGIN PGM NEW MM
1 BLK FORM ROTATION Z DIM_R LBL1
2 M30
3 LBL 1
4 L X+0 Z+1
5 L X+50
6 L Z-20
7 L X+70
8 L Z-100
9 L X+0
10 L Z+1
11 LBL 0
12 END PGM NEW MM
STL files as workpiece blank and optional finished part
Integrating STL files as workpiece blank and finished part is
particularly convenient in combination with CAM programs, where
the required 3-D models are available in addition to the NC program.
Missing 3D models, such as semifinished parts with
multiple, separate machining steps, can be created
directly on the control with the EXPORT WORKPIECE soft
key in the Test Run operating mode.
The file size depends on the complexity of the geometry.
Further information: User's Manual for Setup, Testing
and Running NC Programs
Please note that the STL files are limited in respect of the
number of permitted triangles:
20,000 triangles per STL file in ASCII format
50,000 triangles per STL file in binary format
Binary files are loaded faster by the control.
In the workpiece blank definition you refer to the desired STL files
by indicating the path. Use the SELECT FILE soft key if you want the
control to take over the path information automatically.
If you do not wish to load a finished part, then close the dialog after
the workpiece blank definition.
The path of the STL file can also be entered directly as
text or with a QS parameter.
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
Program begin, name, unit of measure
Spindle axis, manner of interpretation, subprogram number
End of main program
Subprogram start
Starting point of contour
Programming in the positive direction of the principal axis
Contour end
End of subprogram
Program end, name, unit of measure
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