Siemens SINUMERIK 840D SL Operating Manual page 79

Measuring with rotation
Under the function "Measuring with rotation" you have the option to measure without prior
calibration and without entry of a calibration dataset to be used.
To do this, you will need a positionable spindle as well as an electronic 3D workpiece probe.
The radius of the probe ball of the electrical probe must be determined once by calibration
and entered in the tool data.
Spindle orientation of the probe in the measuring direction
In order to obtain extremely precise measurement results, you have the option to orientate
the electronic 3D probe in the measuring direction to avoid deviations regarding the rotation-
symmetric shifting characteristics. Orienting the probe is performed by positioning the
working spindle into which the probe is clamped.
To do this, you will need a positionable spindle as well as an electronic 3D workpiece probe.
Adapting the user interface to calibrating and measuring functions
Activate the following selection options using setting data:
● Calibration plane, measurement plane
● Calibration feedrate (measuring feedrate)
● Work offset as basis for the measuring process
● Number of the probe calibration data set
● Offset target, adjustable work offset
● Offset target, basis reference
● Offset target, global basis work offset
● Offset target, channel-specific basis work offset
● Standard measuring method
● 3D probe with spindle rotation
● Orientate 3D probe
Milling
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Setting up the machine
2.6 Measuring the workpiece zero
79