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8 d a tu m set ting with a 3-d t o uc h pr obe – HEIDENHAIN TNC 640 (34059x-01) User Manual

Page 467

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HEIDENHAIN TNC 640

467

14.8 D

a

tu

m Set

ting with a 3-D T

o

uc

h Pr

obe

Measuring workpiece dimensions

U

Select the probe function by pressing the PROBING

POS soft key

U

Position the touch probe at a position near the first

touch point A

U

Select the probing direction by soft key

U

To probe the workpiece, press the machine START

button

U

If you need the current datum later, write down the

value that appears in the Datum display

U

Datum: Enter "0"

U

To terminate the dialog, press the END key

U

Select the probe function by pressing the PROBING

POS soft key

U

Position the touch probe at a position near the second

touch point B

U

Select the probe direction with the soft keys: Same

axis but from the opposite direction

U

To probe the workpiece, press the machine START

button

The value displayed as datum is the distance between the two points
on the coordinate axis.

To return to the datum that was active before the length
measurement:

U

Select the probe function by pressing the PROBING POS soft key

U

Probe the first touch point again

U

Set the datum to the value that you wrote down previously

U

To terminate the dialog, press the END key

To measure angles:

You can use the 3-D touch probe to measure angles in the working
plane. You can measure

„

the angle between the angle reference axis and a workpiece edge,
or

„

the angle between two sides

The measured angle is displayed as a value of maximum 90°.

Y

X

Z

A

B

l