According to the Federal Reserve, around 6.5 or so counterfeit bills are passed for every 1 million banknotes in circulation in the US. That’s not a huge number, but with increasingly improving technology including printers that are sophisticated enough to duplicate the designs, watermarks, and other counterfeit prevention measures, that number could grow. If you’re the cautious or suspicious type as well as a competent DIYer, now you can 3D print and assemble your own portable UV light counterfeit bill detector. One Instructables contributor shared his 3D printing and assembly instructions and STL files for making a simple UV light detecting device, which also doubles as a small flashlight. Check out more details: http://3dprint.com/36541/3d-print-counterfeit-detector/


Below is a look at the counterfeit money detector in action: