Siemens SINUMERIK 840D sl Programming Manual page 342

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Tool offsets

8.5 Activate 3D tool offsets (CUT3DC..., CUT3DF...)

Tool dimensions Geometry

Tool length offset

The tool tip is the reference point for length offset

(intersection longitudinal axis/surface).

3D tool offset, tool change

A new tool with changed dimensions (R, r, a) or a different form may only be specified with

the programming of G41 or G42 (transition G40 to G41 or G42, reprogramming of G41

G42). This rule does not apply to any other tool data, e.g., tool lengths, so that tools to which

such data apply can be fitted without reprogramming G41 or G42 .

Tool parameters

X = is not evaluated

R = shank radius (tool radius)

r = corner radius

a = angle between tool longitudinal axes

and upper end of torus surface

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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