Workpiece presetting with axis keys, 4 d a tu m set ting without a 3-d t o uc h pr obe – HEIDENHAIN iTNC 530 (340 49x-06) User Manual

Page 541

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HEIDENHAIN iTNC 530

541

14.4 D

a

tu

m Set

ting without a 3-D T

o

uc

h Pr

obe

Workpiece presetting with axis keys

Select the Manual Operation mode

Move the tool slowly until it touches (scratches) the
workpiece surface

Select an axis (all axes can also be selected via the
ASCII keyboard)

Zero tool in spindle axis: Set the display to a known
workpiece position (here, 0) or enter the thickness d
of the shim. In the tool axis, offset the tool radius

Repeat the process for the remaining axes.

If you are using a preset tool, set the display of the tool axis to the
length L of the tool or enter the sum Z=L+d

Y

X

Z

X

Y

-R

-R

Protective measure

If the workpiece surface must not be scratched, you can
lay a metal shim of known thickness d on it. Then enter a
tool axis datum value that is larger than the desired datum
by the value d.

DATUM SETTING Z=

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