HEIDENHAIN TNC 406 - Manual (Page 50)

HEIDENHAIN TNC 406, TNC 416 29
2.5 D
a
tu
m Set
ting with
a Pr
obing Electr
ode
Datum setting in any axis
8 Select the probing function by pressing the PROBING
POS soft key.
8 Move the touch probe to a starting position near the
touch point.
8 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.
8 To probe the workpiece, press the machine START
button.
8 Datum: Enter the nominal coordinate and confirm your
entry with ENT.
Manual probing
The PROBING DEPTH function enables you to probe the workpiece as
often as desired in one axis. At the same time, you can move all
remaining axes with the electronic handwheel. This probing function
is particularly convenient for finding peaks and valleys.
In this process, the TNC always stores the last point of electrode
contact with the workpiece. You can end the probing process with the
CYCLE STOP button.
8 Select the probing function PROBING DEPTH.
8 Move the probing electrode to a starting position near the touch
point.
8 Set the axis traverse limit, i.e. the maximum permissible traverse of
the electrode in the probing axis, and confirm with ENT.
8 Select the probe axis and direction in which you wish to set the
datum, such as Z in direction Z–.
8 Start the probing process. The TNC moves the electrode in the
selected axis direction until it makes contact with the workpiece.
This coordinate is stored in the TNC memory.
The probing process is repeated until you end the probing function
with CYCLE STOP.
8 Use the electronic handwheel to move the electrode in any of the
remaining axes to be scanned for peaks or valleys.
8 Enter the nominal coordinate of the datum and confirm with ENT.