ATOS I 2M 350 scanning size issue

[[Et...]]

Hi, I have a ATOS I 2M white light scanner. I start noticing the scanner size(dimensions) has quite deviate from hard measurement of Target. For example, I quick scanned a 123 Block and result that the scanned size are 2.988 Inches for "3 inches edges". I also tried cylinder and got -0.006" for diameters. Looks like the scanned part is shrink in size. I went through re-calibration but not solving the issue.

P.S. My measure volume is 120X96mm^2, should be a small and accurate setup.

I'd like to know if anyone has similar issue or know what could cause and how to fix it.

Thanks!

[[Ra...]]

Ensure stable environmental conditions, as temperature and humidity can impact performance. Check the alignment of the scanner and the object, as misalignment can cause errors. If re-calibration fails, inspect the scanner's optics and sensors for dirt or damage, and confirm that the software is up to date. Additionally, review scanning parameters and settings, as incorrect configurations may lead to inaccuracies.

[[Et...]]

I did re-calibration. and it shows"High scale Bar Deviation", What is the scale bar? I got a cert document from long time ago. The other parameters are same as the cert. Can you give some direction on solving it?

Thanks!

20250213125519.pdf

[[Ja...]]

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 this could get complicated in my view...

This system and software are really quite old by now.

The scale on coded panels are defined between particular coded markers in the corners of the panel.

Ithe high deviation is checking these two scale values to each other.  Although in inches it is a little suspicious that the distances are equal nominally - i would definitely check the definition of the panel.

If the definition is correct then my intuition would either be calibration panel is damaged or lens damage somehow.