Datum setting with 3-d touch probe – HEIDENHAIN TNC 640 (34059x-02) ISO programming User Manual

Page 64

First Steps with the TNC 640

1.6

Workpiece setup

TNC 640 | User's Manual for DIN/ISO Programming | 5/2013

Datum setting with 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
Set the datum at a workpiece corner, for example

Position the touch probe near the first touch point

on the first workpiece edge

Select the probing direction via soft key

Press NC start: The touch probe moves in the

defined direction until it contacts the workpiece

and then automatically returns to its starting point

Use the axis-direction keys to pre-position the

touch probe to a position near the second touch

point on the first workpiece edge

Press NC start: The touch probe moves in the

defined direction until it contacts the workpiece

and then automatically returns to its starting point

Use the axis-direction keys to pre-position the

touch probe to a position near the first touch point

on the second workpiece edge

Select the probing direction via soft key

Press NC start: The touch probe moves in the

defined direction until it contacts the workpiece

and then automatically returns to its starting point

Use the axis-direction keys to pre-position the

touch probe to a position near the second touch

point on the second workpiece edge

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 shows the coordinates of the

measured corner point
Set to 0: Press the SET DATUM soft key

Press the END soft key to close the menu

Further information on this topic

Datum setting: See "Datum Setting with 3-D Touch Probe ",