HEIDENHAIN TNC 360 User Manual - Manual (Page 116)

TNC 360 5-32
5 Programming Tool Movements
Fig. 5.38: Circular path around a pole,
tangential connection
P
CT
5.5 Path Contours – Polar Coordinates
CC
PA
PR
E
2 1
0 1
Circular path CTP with tangential connection
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.
COORDINATES ?
Select polar coordinates.
POLAR COORDINATES RADIUS PR?
Enter the distance from the pole to the arc end point, for example
PR = 10 mm.
POLAR COORDINATES ANGLE PA ?
Enter the angle from the reference axis to PR, for example PA = 80°.
If necessary, enter also:
Radius compensation
Feed rate
Miscellaneous function
Resulting NC block: CTP PR +10 PA +80
0
ENT
ENT
8