HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 53)

HEIDENHAIN TNC 128 53
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p Datum setting with a 3-D touch probe
 Insert the 3-D touch probe: In the MDI mode, run a TOOL CALL block
containing the tool axis and then return to the Manual Operation
mode
 Select the probing functions: The TNC displays the
available functions in the soft-key row
 Select the function for setting the datum, e.g. Probe
Position
 Position the touch probe near the first touch point on
the first workpiece edge
 Select the probing direction via soft key, e.g. +X
 Press NC start: The touch probe moves in the defined
direction until it contacts the workpiece and then
automatically returns to its starting point
 Then the TNC displays the coordinates of the
measured position
 Set to 0: Press the SET DATUM soft key
 Press the END soft key to close the menu
 Repeat this procedure for all axes, in which you want to set the
datum
Further information on this topic
 Datum setting: See "Datum setting with a 3-D touch probe" on page
303