. . x y – HEIDENHAIN TNC 407 (280 580) User Manual User Manual
Page 155

TNC 425/TNC 415 B/TNC 407
5–56
5
Programming Tool Movements
Contours – FK Free Contour Programming
Fig. 5.48:
Auxiliary points on a free arc
5
.
.
.
X
Y
P2
5
15
5
20
P1
C1
X
Y
P3X
P3Y
P1X
P1Y
FC
P2X
P2Y
CC
Auxiliary points
Auxiliary points are entered for arcs in the same way as for straight lines.
You can program a third auxiliary point for an arc.
Example for exercise: Auxiliary points on an arc
Known data for circular arc C1:
Auxiliary points P1, P2 with the coordinates for
P1 : P1X
=
5
mm
P1Y
=
5
mm
P2 : P2X
= 15
mm
P2Y
= 20
mm
For clarity, the drawing contains only the data
described above.
Initiate the dialog:
Circular arc without tangential connection
Enter the coordinates of the first auxiliary point:
AUXILIARY POINT 1 X-COORDINATE ?
Enter the X-coordinate of the auxiliary point P1, P1X = 5 mm.
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