Tool Offsets - Siemens sinumerik 840d Programming Manual

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The surface normal vector must be perpendicular to

the path tangent with a limit value set via machine

data or else an alarm is output.

Programming the tool orientation: with LEAD

The resulting tool orientation is determined from:

− path tangent,

− surface normal vector

− lead angle LEAD

− tilt angle TILT at end of block

Explanation of the commands

Behavior at inside corners (with 3D tool offset)

If the block is shortened at an inside corner, the

resulting tool orientation is also achieved at the block

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

7.1 Three, four and five-axes transformation: TRAORI

Angle relative to the surface normal vector in the plane created from the

path tangent and surface normal vector

Angle in the plane, perpendicular to the path tangent relative to the

surface normal vector

Transformations

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