HEIDENHAIN ND 1400 - Manual (Page 138)

124 QC-300 Series User’s Guide
Probe to probe delay
Probe to probe delay is the minimum quiet time between valid probe hits. Probe to probe delay eliminates
the possibility of unintended multiple probe inputs due to probe vibration against a surface or mechanical
switch noise. The default of 0.10 seconds of delay is adequate for most applications. Increase the delay
in 0.10 second increments if multiple probe hits occur. Enter the delay into the Probe to probe delay field
in seconds.
Direction threshold
Probe direction threshold is the distance the probe must travel in the same direction prior to making contact
with a surface for a valid touch probe input. The Direction threshold distance determines which side of the
probe compensation is applied to. Enter the distance into the Direction threshold data field in the current
unit of measure.
Qualification diameter
A qualification sphere standard is used to teach the QC-330 the dimensions and offsets of all touch probes.
The sphere diameter is entered into the Qualification diameter data field in the current unit of measure.
Qualify at startup
Probe qualification is performed using a qualification sphere to determine the location and dimensions of
the touch probe. The probe should be qualified at startup if the system does not have a repeatable machine
zero (encoder reference marks), or if a friction probe is used. Toggle Qualify at startup to Yes to perform
probe qualifications upon startup.
Allow auto change/teach
The probe auto change/teach function allows the user to change probes from the CMM work surface
without touching the QC-330 front panel controls or navigating through menus. The change/teach function
is initiated by touching the qualification sphere with the current probe, and then touching the sphere again
with the new probe. If the new probe is already qualified, the user can simply begin measuring with it. If
the new probe is not qualified, the system begins a probe teach to qualify the probe. Toggle Allow auto
change/teach to Yes to enable the auto change/teach function.
Auto change/teach distance
The auto change/teach function is initiated by probing the qualification sphere. Probe contacts must occur
within a minimum distance from the surface of the sphere to be considered valid and trigger the function.
This minimum distance is entered into the Auto change/teach distance data field in the current unit of
measure.