5 setting the datum with a 3-d touch probe, Introduction, To set the datum in any axis (see figure at right) – HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles User Manual
Page 32: Datum setting in any axis

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2 Touch Probe Cycles in the Manual and Electronic Handwheel Modes
2.5 Set
ting the D
a
tu
m with a 3-D T
ouc
h Pr
obe
2.5 Setting the Datum with a 3-D
Touch Probe
Introduction
The following functions are available for setting the datum on an
aligned workpiece:
n
Datum setting in any axis with PROBING POS
n
Defining a corner as datum with PROBING P
n
Setting the datum at a circle center with PROBING CC
To set the datum in any axis (see figure at right)
U
U
U
U
Select the probing function by pressing the PROBING
POS soft key.
U
U
U
U
Move the touch probe to a starting position near the
touch point.
U
U
U
U
Select the probe axis and direction in which you wish
to set the datum, such as Z in direction Z–. Selection
is made via soft keys.
U
U
U
U
To probe the workpiece, press the machine START
button.
U
U
U
U
Datum: Enter the nominal coordinate and confirm your
entry with ENT.
Y
X
Z