User's Manual TNC 360 (from 259 900-11) - heidenhain

5 Programming Tool Movements
5.5 Path Contours – Polar Coordinates
Circular path CTP with tangential connection
5-32
The tool moves on a circular path, starting tangentially (at 2 ) from a
preceding contour element ( 1 to 2 ).
Input:
• Polar coordinate angle PA of the arc end point E
• Polar coordinate radius PR of the arc end point E
• The transition points must be defined exactly.
• The pole is not the center of the contour arc.
CT
COORDINATES ?
1
0
P
POLAR COORDINATES RADIUS PR?
POLAR COORDINATES ANGLE PA ?
8
0
ENT
ENT
If necessary, enter also:
Radius compensation
Feed rate
Miscellaneous function
Resulting NC block: CTP PR +10 PA +80
Select polar coordinates.
1
CC
PR
PA
Fig. 5.38: Circular path around a pole,
tangential connection
Enter the distance from the pole to the arc end point, for example
PR = 10 mm.
Enter the angle from the reference axis to PR, for example PA = 80°.
2
E
TNC 360