HEIDENHAIN TNC 640, User Manual, Page: 298 / 948

Programming Contours | Path contours

Cartesian coordinates
7
298
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
7.4
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 299
Chamfer: CHF Chamfer between two
straight lines Chamfer side length 300
Circle center CC None Coordinates of the circle
center or pole 302
Circular arc C Circular arc around a
circle center CC to an arc
end point Coordinates of the arc
end point, direction of
rotation 303
Circular arc CR Circular arc with a certain
radius Coordinates of the arc
end point, arc radius,
direction of rotation 304
Circular arc CT Circular arc with tangen-
tial connection to the
preceding and subse-
quent contour elements Coordinates of the arc
end point 306
Corner rounding RND Circular arc with tangen-
tial connection to the
preceding and subse-
quent contour elements Rounding radius R 301
FK free contour
programming
Straight line or circular
path with any connection
to the preceding contour
element "Path contours – FK free
contour programming ",
page 317 320