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

5 Programming Tool Movements
5.4 Path Contours – Cartesian Coordinates
Circular Path C Around the Center Circle CC
TNC 360
Prerequisites
The circle center CC must have been previously defined in the program.
The tool is located at the arc starting point S .
Input
• Arc end point
• Direction of rotation (DR)
The starting and end points of the arc must lie on the circle.
Input tolerance: up to 0,016 mm.
• To program a full circle, enter the same point for
the end point as for the start point in a C-block.
Y
S E
CC
Fig. 5.24: Full circle around CC with a Cblock
X
Y E
Y CC
Y S
Y
Fig. 5.25: Coordinates of a circular arc
S
CC
Fig. 5.23: A circular arc from S to E
around CC
S
X S
CC
X CC
E
X E
E
X
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