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I – 2 f undamentals of positioning – HEIDENHAIN ND 287 User Manual User Manual

Page 17

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ND 287

17

I – 2 F

undamentals of positioning

Actual position, nominal position and
distance-to-go

The position of the length gauge at any given moment is called the
actual position

, while the position that the length gauge is to move

to is called the nominal position. The distance from the nominal

position to the actual position is called the distance-to-go (see Fig.

I.4).

Fig. I.4

Nominal position S, actual position I and

distance-to-go R

R

I

S

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