260 Programming: Programming Contours
6.6 Path contours—FK free contour programming
Free programming of circular arcs
Circular arc without tangential connection
To display the soft keys for free contour programming,
press the FK soft key
To initiate the dialog for free programming of circular
arcs, press the FC soft key. The TNC displays soft
keys with which you can directly enter data on the
circular arc or the circle center
Enter all known data in the block by using these soft
keys. The FK graphic displays the programmed
contour element in red until sufficient data is entered.
If the entered data describes several solutions, the
graphic will display the contour element in green (see
"Graphics during FK programming", page 256)
Circular arc with tangential connection
If the arc connects tangentially to another contour element, initiate the
dialog with the FCT soft key:
To display the soft keys for free contour programming,
press the FK soft key
To initiate the dialog, press the FCT soft key
Enter all known data in the block by using the soft
keys
Input possibilities
End point coordinates
Example NC blocks
Known data Soft keys
Cartesian coordinates X and Y
Polar coordinates referenced to FPOL
7 FPOL X+20 Y+30
8 FL IX+10 Y+20 RR F100
9 FCT PR+15 IPA+30 DR+ R15
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