Siemens SINUMERIK 840D sl Programming Manual page 211

Measuring principle
The 1st The calibration ball is measured using CYCLE997 and the measurement is repeated.
The starting angle can be freely selected. The incremental angle between the measuring points
should be set to 90 degrees. From two measuring points along the circumference and one
measuring point at the "north pole" of the sphere (highest point), the center point (position of
the ball) is determined. In addition, the diameter of the calibration ball can be determined.
The 2nd measurement is performed with CYCLE979 at the shank of the probe at a distance
of DZ. The starting angle and the incremental angle are taken from the 1st measurement. The
measuring path and the safe area are also from the 1st measurement times a factor of 1.5.
measurement. The center point of the probe shaft in the plane is determined.
For both measurements, the switching direction of the probe is corrected for each individual
measurement.
The angular deviation in XY is calculated from the results of the two center points in XY and
the distance between the two measurements in Z (for G17).
The tolerance parameter of the angular values is optionally checked (dimensional tolerance
"yes").
Note:
The cycle
application, WO 2007068912 A1.
It is recommended to use the Renishaw probe with maximum accuracy for the application of
the CYCLE995.
Measure: Angular deviation, spindle (CY‐
CLE995), 1st measurement
Measuring cycles
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
CYCLE995 is based on the Renishaw AxiSet
3.3 Measure workpiece (milling)
method based on the patent
TM
Measure: Angular deviation, spindle (CY‐
CLE995), 2nd measurement
Measuring variants
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