I have had a sandbox running for about 9 months, it is designed to be portable so it has moved around between schools and events. Recently I rebuilt the tower that holds the Project and Sensor so that it is easier to transport and provides much better stability (less shaking when bumped). This changed the geometry of the box / project / sensor.
When I went through the calibration process with the new tower arrangement, everything worked out fine, good coverage of sensor and projector, good alignment, calibration within a millimeter or 2, However…
When running the sandbox proper, the terrain was shifted about 3cm for where it should have been.
I tried redoing the calibration, rechecked alignments etc. all fine. I even made sure I had the latest version of the software, Which I was already using. checked the keystone on the projector…
I decided to completely reinstall that sandbox software. After reinstall and re-calibrate. all is fine.
This brings up the real questions.
1. Does rerunning the calibration build upon that previous calibrations? or does it start from scratch?
2. Are there files that can be deleted that would reset the calibration / setup so that the software does not have to be installed from scratch?