[Ben Krasnow] built his own version of the TSA’s body scanner. The device works by firing a beam of x-rays at at target. Some of the beam will go through the target, some will be absorbed by ...

While scanning, the laser shines across the target surface, and the reflected light is then picked up by the camera. So how does this $25 DIY laser scanner measure up? Great, to be honest.

I built a 3D printed, scanning laser confocal microscope so I could collect 3D surface topology and profilometry data! The ...