Siemens SINUMERIK 802D sl Programming And Operating Manual page 101

Transition to next element
A transition element ("Trans. to next element") can be used whenever there is a point of
intersection between two neighboring elements; this can be calculated from the input values.
You can choose to insert either a radius RND, a chamfer CHR or an undercut as the
transition element between any two contour elements. The transition is always appended to
the end of a contour element. You select transition elements in the parameter input screen
for the relevant contour element.
You can access the "Undercut" transition element with softkey "Alternative" (or the "Selection
key").
Radius or chamfer at the start or the end of a turning contour:
In simple turning contours a chamfer or radius must often be appended at the start and end
of the contour.
A chamfer or radius terminates an axis-parallel contour section on the blank:
Figure 7-14
You select the direction of transition for the contour start in the starting point screen. You can
choose between chamfer and radius. The value is defined in the same manner as for the
transition elements.
In addition, four directions can be selected in a single selection field. You select the direction
of the transition element for the contour end in the end screen. This selection is always
proposed, even if predecessing elements were assigned no transition.
Free text input
In the "Free text input" field you can enter supplementary technological data, such as F1000
feedrate values, H or M functions.
Note
If comments are entered as text, they must always be started with a ";" semicolon.
Example: ; This is a test comment.
Surface grinding
Programming and Operating Manual, 11/2012, 6FC5398-5CP10-3BA0
Contour with radius or chamfer
Part programming
7.4 Free contour programming
101