Siemens SINUMERIK 840D sl Programming Manual page 114

Measuring variants
3.3 Measure workpiece (milling)
Starting position before the measurement
If the measuring cycle is not started at the center of the ring, the workpiece probe sphere center
must be positioned close to the center of the ring as well as to a calibration height within the
calibration ring.
When starting the measuring cycle at the center of the ring, the workpiece probe sphere center
must be positioned precisely at the ring center point as well as at a calibration height within
the calibration ring.
Position after the end of the measuring cycle
When calibration is complete, the probe center is at calibration height in the center of the ring.
Note
For extremely high demands placed on the measuring accuracy, it makes sense to accept the
distance between the center point and starting position in the work offset and to perform an
additional calibration using this optimization.
Procedure
The part program or ShopMill program to be processed has been created and you are in the
editor.
Parameter
G code program
Parameter Description
PL Measuring plane (G17 - G19)
Calibration data set (1 - 40)
F Calibration and measuring fee‐
drate
114
1. Press the "Meas. workpiece" softkey.
2. Press the "Calibrate probe" softkey.
3. Press the "Radius in ring" softkey.
The input window "Calibrate: Radius in ring" opens.
ShopMill program
Unit Parameter
- T
- D
Distance/
min
F
X
Y
Z
Description
Name of the probe
Cutting edge number (1 - 9)
Calibration data set (1 - 40)
Calibration and measuring fee‐
drate
Start point X of the measure‐
ment
Start point Y of the measure‐
ment
Start point Z of the measure‐
ment
Programming Manual, 12/2017, 6FC5398-4BP40-6BA1
Unit
-
-
-
mm/min
mm
mm
mm
Measuring cycles