8 d a tu m set ting with 3-d t o uc h pr obe – HEIDENHAIN TNC 620 (73498x-01) ISO programming User Manual

Page 377

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HEIDENHAIN TNC 620

377

13.8 D

a

tu

m set

ting with 3-D t

o

uc

h pr

obe

Using touch probe functions with mechanical
probes or dial gauges

If you do not have an electronic 3-D touch probe on your machine, you
can also use all the previously described manual touch probe functions
(exception: calibration function) with mechanical probes or by simply
touching the workpiece with the tool.

In place of the electronic signal generated automatically by a 3-D touch
probe during probing, you can manually initiate the trigger signal for
capturing the probing position by pressing a key. Proceed as follows:

U

Select any touch probe function by soft key

U

Move the mechanical probe to the first position to be

captured by the TNC

U

Confirm the position: Press the actual-position-

capture soft key for the TNC to save the current
position

U

Move the mechanical probe to the next position to be

captured by the TNC

U

Confirm the position: Press the actual-position-

capture soft key for the TNC to save the current
position

U

If required, move to additional positions and capture

as described previously

U

Datum

: In the menu window, enter the coordinates of

the new datum, confirm with the SET DATUM soft
key, or write the values to a table (see "Writing the
measured values from touch probe cycles in datum
tables", page 363, or see "Wri
ting the measured
values from touch probe cycles in the preset table",
page 364)

U

To terminate the probe function, press the END key

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