HEIDENHAIN TNC 407 (280 580) User Manual User Manual
Page 156
5–57
TNC 425/TNC 415 B/TNC 407
Contours – FK Free Contour Programming
5
Programming Tool Movements
Fig. 5.49:
Beginning and end of a closed
contour
or
+/
1x
+/
2x
.
.
.
5
1
2
0
5
END
CLSD+
CLSD–
AUXILIARY POINT 1 Y-COORDINATE ?
Enter the Y coordinate of the point P1, P1Y = 5 mm.
Enter the coordinates of the second auxiliary point:
AUXILIARY POINT 2 X-COORDINATE ?
Enter the X coordinate of the auxiliary point P2, P2X = 15 mm.
AUXILIARY POINT 2 Y-COORDINATE ?
Enter the Y coordinate of the auxiliary point P2, P2Y = 20 mm.
Close the block:
Resulting NC block: FC P1X+5 P1Y+5 P2X+15 P2Y+20
Identifying closed contours
You can identify the beginning and end of a closed contour with the CLSD
soft key. This reduces the number of possible solutions for the last
contour element.
Enter CLSD as an addition to another contour data entry.
The closed contour results from the geometric context, for example from
a tangential transition.
To program a closed contour:
CLOSED CONTOUR: BEGIN/END = +/-
The contour element is the beginning of a closed contour, or the end
of a closed contour whose beginning was identified with CLSD+.