HEIDENHAIN TNC 620 User Manual page 93

Cylindrical blank
The cylindrical blank form is defined by the dimensions of the
cylinder:
R: Radius of the cylinder
L: Length of the cylinder
DIST: Distance from datum to cylinder end
RI: Inside radius for a hollow cylinder
The DIST and RI parameters are optional and do not
need to be programmed.
Example: Display the BLK FORM CYLINDER in the NC program
0 BEGIN PGM NEW MM
1 BLK FORM CYLINDER Z R50 L105 DIST+5 RI10
2 END PGM NEW MM
Rotationally symmetric blank of any shape
You define the contour of the rotationally symmetric blank in a
subprogram. In the workpiece blank definition you refer to the
contour description:
DIM_D, DIM_R: Diameter or radius of the rotationally
symmetrical blank form
LBL: Subprogram with the contour description
The subprogram can be designated with a number,
an alphanumeric name, or a QS parameter.
Example: Display the BLK FORM ROTATION in the NC program
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
TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
Opening programs and entering
Program begin, name, unit of measure
Spindle axis, radius, length, distance, inside radius
Program end, name, unit of measure
Program begin, name, unit of measure
Spindle axis, manner of interpretation, subprogram number
End of main program
Beginning of subprogram
Beginning of contour
End of contour
End of subprogram
Program end, name, unit of measure
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