Siemens SINUMERIK 840D sl Programming Manual page 349

Example
Tool dimensions of a toroidal miller with reduced radius as compared with the standard tool.
Tool type
Standard tool with corner rounding
Real tool with corner rounding:
Tool types 121 and 131 toroidal miller
(end mill)
In this example
tool type ($TC_DP1) is evaluated.
Only cutter types with cylindrical shank
are permitted (cylinder or end mill) and
toroidal miller (type 121 and 131) and
in the limit case of the cylindrical die
mill (type 110).
All tool types of the numbers 1 –399
with the exception of the numbers 111
and 155 to 157 are permitted.
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
8.5 Activate 3D tool offsets (CUT3DC..., CUT3DF...)
R = shank radius
R = $TC_TP6
R' = $TC_TP6 + $TC_TP15 +
OFFN
either
or
For these approved cutter types, the corner radius r is
identical to the shank radius R. All other permitted tool
types are interpreted as cylindrical cutters and the
dimensions specified for the corner rounding are not
evaluated.
Tool offsets
r = corner radius
r = $TC_TP7
r' = $TC_TP7 + $TC_TP6
$TC_TP15 + OFFN
$TC_TP16 negative.
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