illusion arrow

thingiverse

This is a 3D optical illusion that plays tricks on your eyes. When viewed from a precise 45-degree angle, this sleek arrow appears to point straight ahead, but turn it 180 degrees and it will still appear to be pointing in the same direction. My creative design was inspired by an original concept found online. The idea is showcased in detail here: https://nerdist.com/spinning-arrow-illusion/. Unfortunately, my STL files aren't properly formatted for optimal viewing, and the GIF animation seems uncooperative, but you can see a live demonstration of this fascinating illusion in action on Imgur at this link: https://imgur.com/gallery/H6yfKlQ.