HEIDENHAIN MANUALplus 4110 - Manual (Page 352)

352 6 DIN Programming
6.16 Under
c
ut Cy
cles
Undercut type K G858
The cycle G858 machines an undercut. This cycle performs only one
cut at an angle of 45°. The resulting contour geometry therefore
depends on the tool that is used. At the end of cycle, the tool returns
to the starting point.
Parameters
 X contour corner (diameter value)
 Z contour corner
 I undercut depth
Example: G858
%858.nc
[G858]
N1 T9 G95 F0.23 G96 S248 M3
N2 G0 X60 Z2
N3 G858 X50 Z-30 I0.5
END
„ Undercuts can only be executed in orthogonal, paraxial
contour corners along the longitudinal axis.
„ Cutting radius compensation: Active.
„ Oversizes: are not taken into account.