Siemens SINUMERIK 840D Operation/Programming Manual page 148

2
Operation
2.13 Tools and tool offsets
What type of tool offsets
are available?
Tool length offset
2-148
The offset memory of a tool includes the following:
• Tool type
The tool type determines which tool data are required and how
they must be calculated (e.g. drill, centering tool, mill).
• Total size: Length, radius, angle (drill)
These comprise several components (geometry, wear). The
control performs calculations on the components to obtain a final
size (e.g. total length, total radius). The relevant total dimension
becomes valid as soon as the offset memory is activated.
Radius
This value compensates for the differences in length between the
tools used.
The tool length is interpreted to be the distance between the
toolholder reference point and the tool tip. This measured length is
entered in the tool list.
The control uses this measurement and the wear values to calculate
travel movements in the infeed direction.
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
2
10.04
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