Programming Contours | Path contours Cartesian coordinates
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Circle center CC
You can define a circle center for circles that you have programmed
with the C key (circular path C) . This is done in the following ways:
Entering the Cartesian coordinates of the circle center in the
working plane, or
Using the circle center defined in an earlier block, or
Capturing the coordinates with the Actual-position capture key
Enter coordinates for the circle center or, if you
want to use the last programmed position, enter
no coordinates
Example
5 CC X+25 Y+25
or
10 L X+25 Y+25
11 CC
The program lines 10 and 11 do not refer to the illustration.
Validity
The circle center definition remains in effect until a new circle
center is programmed.
Entering the circle center incrementally
If you enter the circle center with incremental coordinates, you
have programmed it relative to the last programmed position of the
tool.
The only effect of CC is to define a position as circle
center: The tool does not move to this position.
The circle center is also the pole for polar coordinates.
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