Please Note While Programming - HEIDENHAIN TNC 640 User Manual

Touch Probe Cycles: Special Functions | 3D PROBING (Cycle 444)

Please note while programming:

In order to achieve exact results from the touch probe
being used, a 3-D calibration should be conducted
before probing with Cycle 444. Software option 92 3D-
ToolComp is required for 3-D calibration.
Cycle 444 generates a measuring log in HTML format.
An error message is output if a mirroring (Cycle 8) or
scaling (Cycle 11, 26) is active before Cycle 444 is run.
Depending on the setting of the parameter
CfgPresetSettings, it is checked during probing whether
the positions of the rotary axes match the tilting angles
(3-D ROT). The TNC displays an error message if that is
not the case.
If your machine is equipped with a controlled spindle,
you should activate the angle tracking in the touch probe
table (TRACK column). This generally increases the
accuracy of measurements with a 3-D touch probe.
Cycle 444 references all coordinates to the input
system.
The TNC writes the measured values to return
parameters (See "Cycle run", page 635).
The workpiece status good/rework/scrap is set via
Q parameter Q^83, independent of parameter Q309
(See "Cycle run", page 635).
HEIDENHAIN | User's manual for cycle programming | 10/2017
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