G16: circular path with tangential transition -32 – HEIDENHAIN TNC 407 (280 580) ISO Programming User Manual
Page 165
TNC 426/TNC 425/TNC 415 B/TNC 407
5 - 3 2
5
Programming Tool Movements
Fig. 5.39:
Circular path around a pole with
tangential transition
Path Contours – Polar Coordinates
1
6
G
R
0
1
H
8
0
END
G16: Circular path with tangential transition
Moving on a circular path, the tool transitions tangentially to the previous
contour element (
1
to
2
) at
2
.
Input:
• Polar coordinate angle H of the arc end point
E
• Polar coordinate radius R of the arc end point
E
•
The transition point must be exactly defined.
•
The pole is not the center of the contour arc.
Circle, polar coordinates, with tangential transition.
Enter distance R from arc end point to pole (here, R = 10 mm).
Enter angle from reference axis to R (here, H = 80°) and
confirm entry.
Further entries, if necessary:
Radius compensation R
Feed rate F
Miscellaneous function M
Resulting NC block: G16 R+10 H+80 *
H
R
E
2
1
X
Y
J
I