Square Circle Optical Illusion

thingiverse

This is an impossible object known as a squircle - essentially a shape that appears as both a square and a circle depending on how it's viewed. When viewed from one end, it looks like a perfect square; viewed from directly across, it's a complete circle. You can't trick the eye into seeing this illusion without some clever perspective tricks, fortunately, our ThingView has those enabled. There are two versions available for printing - one with smooth edges and one without. The version with rounded edges prints faster and is easier to work with. If you have excellent bed adhesion, it might be possible to print the filleted model without supports; however, if that's not the case, supports will definitely be needed because before the arches are completed, the model becomes quite unstable during the printing process.