HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 222)

Programming: Programming contours
6.4 Path contours - Cartesian coordinates
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
6.4 Path contours - Cartesian coordinates
Overview of path functions
Path function key Function Tool movement Required input Page
Straight line L Straight line Coordinates of the end
point of the straight line 223
Chamfer: CHF Chamfer between two
straight lines Chamfer side length 224
Circle center CC None Coordinates of the circle
center or pole 226
Circular arc C Circular arc around a
circle center CC to an arc
end point Coordinates of the arc
end point, direction of
rotation 227
Circular arc CR Circular arc with a certain
radius Coordinates of the arc
end point, arc radius,
direction of rotation 228
Kreisbogen CT Circular arc with
tangential connection
to the preceding and
subsequent contour
elements Coordinates of the arc
end point 230
Corner rounding
RND
Circular arc with
tangential connection
to the preceding and
subsequent contour
elements Rounding radius R 225
FK free contour
programming
Straight line or circular
path with any connection
to the preceding contour
element see "Path contours
– FK free contour
programming ",
page 241 244