HEIDENHAIN IK 5293 - Manual (Page 66)

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Chapter 3 Using Probes
Probe Calibration
There are two factors that influence probe measurements: the radius of the probe
tip and the spatial (X, Y, and Z) position of the probe tip. All measurements are
based on the location of the center of the probe tip. Probe compensation ap-
plies a calculation to correct for the radius of the probe on each measurement.
The compensation for each probe tip is calculated automatically when the probe
is taught.
Click on the TouchProbe group and observe the probes in the right-hand data
box. The following information appears in the probe data box by default name
of the probe, date of probe qualification, and the name of the person who per-
formed the qualification.
NOTE NOTE NOTE NOTE NOTE
The date and the name of the person qualifying the probe are The date and the name of the person qualifying the probe are The date and the name of the person qualifying the probe are The date and the name of the person qualifying the probe are The date and the name of the person qualifying the probe are
taken from the Windows system clock and login respectively
taken from the Windows system clock and login respectively taken from the Windows system clock and login respectively taken from the Windows system clock and login respectively taken from the Windows system clock and login respectively.....
Probe qualification, or probe teaching, refers to the process of establishing the
dimension of the probe tip. This process typically involves taking a number of
probe hts on a qualification sphere with a known diameter. Qualifying, or
teaching, a probe also provides offsets for probe compensation.
Master probe tips
Teaching a probe also establishes the spatial (X, Y, and Z) position of the probe
tip (master probe tip) or the X,Y, and Z offsets (non-master tips) from the mas-
ter tip. Each probe group has one master probe tip. The X, Y, and Z values of
each probe in a group is compared to the master probe. The difference becomes
the X, Y, and Z offset value for each non-master probe tip.
For example, a star probe group has five probe tips: one master tip and four
non-master tips. The X, Y, and Z position on the non-master tips are all calcu-
lated by their X, Y, and Z offset from the master tip. Since the tips on a star
probe are fixed and repeatable simply re-teaching the master tip is sufficient to
update the entire group.
The same holds true for index probes that can be moved into various repeatable
positions. Each position can be entered into probe library as a new tip. Estab-
lishing one position as the master tip allows all the non-master tips (positions)
to update when the master tip is re-taught.