HEIDENHAIN TNC 426 (280 476) - Manual (Page 286)

HEIDENHAIN TNC 426, TNC 430 259
8.4 Cy
cles f
or milling poc
k
e
ts, st
uds and slots
7 7 7 7 Rounding off radius : Radius for the pocket corners.
If Radius = 0 is entered, the pocket corners will be
rounded with the radius of the cutter.
Calculations:
Stepover factor k = K x R
K: is the overlap factor, preset in machine parameter 7430, and
R is the cutter radius