HEIDENHAIN TNC 426 (280 476) - Manual (Page 166)

HEIDENHAIN TNC 426, TNC 430 139
6.4 P
a
th Cont
ours
—
Car
tesian Coor
dinat
e
s
6.4 Path Contours — Cartesian
Coordinates
Overview of path functions
Function Path function key Tool movement Required input
Line L Straight line Coordinates of the end points of
the straight line
Chamfer: CHF Chamfer between two straight
lines Chamfer side length
Circle Center CC No tool movement Coordinates of the circle center or
pole
Circle C Circular arc around a circle center
CC to an arc end point Coordinates of the arc end point,
direction of rotation
Circular Arc CR Circular arc with a certain radius Coordinates of the arc end point,
arc radius, direction of rotation
Circular Arc CT Circular arc with tangential
connection to the preceding and
subsequent contour elements Coordinates of the arc end point
Corner Rounding RND Circular arc with tangential
connection to the preceding and
subsequent contour elements Rounding-off radius R
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
158