HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 196)

Programming: Programming contours
6.4 Path contours - Cartesian coordinates
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TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
6.4 Path contours - Cartesian coordinates
Overview of path functions
Function Path function key Tool movement Required input Page
Straight line L Straight line Coordinates of the end
point of the straight line
197
Chamfer: CHF Chamfer between two
straight lines
Chamfer side length 198
Circle center CC None Coordinates of the
circle center or pole
200
Circular arc
C
Circular arc around a
circle center CC to an
arc end point
Coordinates of the arc
end point, direction of
rotation
201
Circular arc CR Circular arc with a
certain radius
Coordinates of the arc
end point, arc radius,
direction of rotation
202
Kreisbogen
CT
Circular arc with
tangential connection
to the preceding and
subsequent contour
elements
Coordinates of the arc
end point
204
Corner rounding
RND
Circular arc with
tangential connection
to the preceding and
subsequent contour
elements
Rounding radius R 199
Programming path functions
You can program path functions conveniently by using the gray path
function keys. In further dialogs, you are prompted by the TNC to
make the required entries.
If you enter DIN/ISO functions via a connected USB
keyboard, make sure that capitalization is active.