HEIDENHAIN MANUALplus 4110 - Manual (Page 263)

HEIDENHAIN MANUALplus 4110 263
5.5 ICP Cont
our Elements, T
u
rn
ing Cont
our
Entering form elements
Chamfer/rounding
Chamfers/roundings are defined on contour corners.
A "contour corner" is the point of intersection between
the approaching and departing contour elements.
MANUALplus cannot calculate a chamfer or rounding
until the departing contour element is known. During
the parameter input for the chamfer/rounding, the
coordinates of the corner are shown in "starting point
XS, ZS."
If an ICP contour starts with a chamfer/rounding, the
"approaching contour element" is missing. You can
then use the parameter "element position J" to clearly
define the position of the chamfer/rounding.
MANUALplus converts a chamfer or rounding at the
start of the contour to a linear or circular element.
Undercut
The form element "undercut" consists of a longitudinal
element, the actual undercut and a transverse
element. An undercut can start with a longitudinal or
transverse element.
If the undercut corner is not known, the parameter
"Element position J" defines whether the undercut
starts with the longitudinal or transverse element (see
figure at upper right).
Example: External chamfer at contour start
If you program "element position J=1," the imaginary
approaching reference element is a transverse
element in the positive X-axis direction (see figure to
the bottom right).