Last week an entry for the Best Illusion of the Year Contest from Japan’s Kokichi Sugihara confused and delighted viewers all over the world. The video showed six plastic cylinders stuck together, and when they were placed in front of a mirror they inexplicably became squares. YouTube maker Devin Montes quickly posted a quick video explaining the illusion using some 3D printed cylinders to his Make Anything channel. He then followed it up with a more in-depth explanation of how the illusion works, and how he made the 3D printed objects that explain how it was done. YOu can find out how the illusion was done over on 3DPrint.com: https://3dprint.com/141890/3d-printi...ical-illusion/