P40 data separation in modelspace

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marcogm
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P40 data separation in modelspace

Post by marcogm »

Currently scanning following a method where we would do a coarse Target All scan and after one or several sub-scans of the areas we need with better resolution.

Having an issue where, viewing the modelspace of only one station there is separation in the scans as seen in the images below. One line of data shows the coarse scan and the offset line is the higher-resolution scan. This would happen on most stations, but in other stations the different scans would be aligned.
2.png
1.png
Thoughts?

Thanks!
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rpfischner
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Re: P40 data separation in modelspace

Post by rpfischner »

I've seen this when the scanner is set up on wood flooring or roofing membrane. When you run the coarse scan you've generally walked away a few feet or more, but during the fine scan you may be standing next to the scanner and the weight of your body may slightly impact the position of the tripod.

Pretty rare but I've definitely seen it on softer surfaces.
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Re: P40 data separation in modelspace

Post by JNally »

Id agree with Robert here.

Have seen this before with change of height from walking away.
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Re: P40 data separation in modelspace

Post by brucewhitesterling »

Yes, I believe the above answers are correct, however, you might also just use the "Check and Adjust" calibration test just to make sure that you are still in tolerance.
marcogm
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Re: P40 data separation in modelspace

Post by marcogm »

We did the "Check and Adjust" calibration test and it did not change the results.

I have also seen that separation while being on unstable ground (roofing membrane, etc). However, I have been seeing the separation mentioned in this topic while the tripod being set up the tripod in stable ground (pavement).

The hypothesis at the moment is that it may be caused by the scanner's firmware being out-of-date. We are in the process of updating the firmware hopefully later this week.

Thanks for the replies! Will let you guys know if the update made the difference.
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