Touch Probe Question

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Good day,

I have found when probing surfaces with the touch probe, the point data is 2.5 mm away from the actual scanned surface with is incorrect.  My probe is 2.5 mm radius, so it seems like there may be a link there.

Does ATOS have a compensation correction for the probe diameter?  Where can I find / adjust this?  I made sure to type in the radius correctly upon calibration.

We are using GOM Inspect Pro with a freshly calibrated touch probe.

Thank you,

Adam

[[Na...]]

Hello Adam,

a touch point will create a point in the center of the probe head. For a surface point, you first define a fitting plane and then a touch point, which is projected on this plane:
ZEISS Quality Tech Guide (gom.com)

Regards,
Nanno

 

[[Yi...]]

Hi

Regarding this question, I face the same problem when trying to asses diameters of touch probe cylinders.

The final result is the nominal value after reducing the 1.5mm probe diameter.
The actual cylinder is already created with this offset and I am trying to figure out how to solve this compensation problem.

In the same way, all the actual plane are getting an offset location of 1.5mm

I use the assignment of the measuring principle of a touch probe and then a guided touch probe and this reduction of the probe diameter is consistent.

I would be happy to receive an explanation of how to solve this

Many thanks