Siemens sinumerik 840d Programming Manual page 284

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Tool Offsets

8.5 Activate 3D tool offsets

Path curvature

Path curvature is not monitored. In such cases, it is

also advisable to use only tools of a type that do not

violate the contour.

Insertion depth (ISD)

Program command ISD (insertion depth) is used to

program the tool insertion depth for peripheral milling

operations. This makes it possible to change the

position of the machining point on the outer surface

of the tool.

ISD specifies the distance between the cutter tip

(FS) and the cutter reference point (FH). The point

FH is produced by projecting the programmed

machining point along the tool axis. ISD is only

evaluated when 3D tool radius compensation is

Inside corners/outside corners

Inside and outside corners are handled separately.

The term inside or outside corner depends on the

tool orientation.

When changes occur in the orientation at a corner,

the corner type can change during machining. If this

happens, machining stops and an error message is

SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition

Direction of machining

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