Unable to complete scans with Sprout G2 and HP Stage on HP 3D Scan v5

[bolsoncerrado]

Hello there,

I'm desperately seeking help regarding HP 3D Scan v5 as, whenever I log into my Sprout G2 computer and complete a projector calibration, everything is displayed fine, inside the white region of the matt, 

BUT

whenever I launch HP 3D Scan v5, the projection gets distorted again:

I compared this result (granted i have ALL Windows Updates applied and ALL HP app updates applied too) to a youtuber video where you can clearly see his version is OLDER and he gets a perfect calibration inside the white matt:

https://www.youtube.com/watch?v=VuImdoB1VyQ

I 'm having lots of alignment issues, surfaces not recognized and backgrounds not ignored (even if I scan them with the matt empty and tick the REMOVE BACKGROUND option on the software).

Is there any way to totally uninstall this software and reinstall it somehow? A hard reset? Any solution PLEASE?


Thanks!

[Tim-S · Accepted solution]

Hi

The behavior you're seeing on Sprout is normal and expected behavior the software turns off the keystone correction because the keystone correction can cause some distortions in the scan.  When the software closes down it should restore the projector keystone correction back to what it was, but while HP 3D Scan pro is running the projector will project outside of the white area of the touchmat.

The software version shown in that video is version 5.2.0 which is before the software even officially supported the HP Sprout.  The user probably calibrated the software themself using the "custom" scanner option and a V plate calibration from the DAVID standalone scanner.  This mode will not produce the best scans since the input to the projector is being keystone corrected.

The alignment errors are most likely due to thermal drift, the best way to minimize these errors is to leave the system and projector on for 10-20 minutes before performing a background or normal scan.

I believe that you can uninstall the software using the discover app, or by going into Windows' "Add or remove programs".  Re-installation can be done by through the discover app, or by downloading the latest version 5 of the software from https://www.david-3d.com/en/support/downloads or from the official HP website

I hope that helps a bit.  Cheers!

[bolsoncerrado]

It indeed offers some help! Thanks 😉

Never thought of thermal drift...it's true we're currently in winter in a fresh environment at certain times and the Sprout being "hot" hehe I'll take care of that.

Apparently it did a better job with a pale clear figure so the milestone here is to be able to scan darker stuff 😕

Thanks!