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Small Probe diameter during calibration

Smasherofprobes
Hi guys, due to the amount of vibration in the shop here we have to switch between analog and TTP. I have been using Analog up until today but then I switched over to TTP and I'm getting small probe diameters on calibration.

I am trying to calibrate a TP20 system and my probe diameter keeps measuring around 1.972 (2mm ball) I have adjusted the touch speed from 6mm/Sec all the way down to 2mm/Sec with no changes in probe diameter.

Do I need to go into the Probe force settings and start messing around ? and if I do this will it interfere with my Analog settings?

Thanks!

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  • Using TTP tip diameters should come up small.

    If the physical tip (as checked with a micrometer) is perfect (say 2mm) the tip will always measure small, as some amount of deflection is required on the stylus to actually trigger the probe.

    You will see the longer the tip, the smaller it 'measures'.

    But this is part of the calibration procedure and as that snippet from the training manual shows, it is corrected for during measurement.
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  • Using TTP tip diameters should come up small.

    If the physical tip (as checked with a micrometer) is perfect (say 2mm) the tip will always measure small, as some amount of deflection is required on the stylus to actually trigger the probe.

    You will see the longer the tip, the smaller it 'measures'.

    But this is part of the calibration procedure and as that snippet from the training manual shows, it is corrected for during measurement.
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