That sounds like a good idea. Good luck with your xy table build!
Yes please do post back when you have an update.
I have built assembly which moves my sensor in X-Y direction. I have attached the file which moves the sensor in front-back-left and right direction and acquires the corresponding voltage.
Now I am stuck how to get the 3D scan of an object beong scanned? That is how to get the X,Y and Z co-ordinates of the object being scanned in a dynamic manner.