This is my fist attempt at building a 3D scanner. Here I have used a laser pen from the $2 store and an old wine glass stem for my laster pointer. The wine glass stem changes the beam from a single dot point beam to a line beam allowing me to use it as a scanner. After downloading David Scanner software, I found an old web camera and attempted to calibrate the camera with the screen… Unfortunately It wouldn’t calibrate. I will try again tonight.