Right pointing arrow - optical illusion
Description
Based on the math by Kokichi Sugihara, I've made my own variant of the right-pointing-arrow. When rotating, it still points to the right, and in the mirror it always points to the left! Comes included both with and without a support that makes it possible to rotate. Compared to other arrows on here, this one is designed perfectly using math, and the shape is curved (not sharp) to make it less obvious in real light conditions what's happening. Best viewed at 45 degrees angle. My other illusions / ambiguous cylinders / impossible objects : https://www.thingiverse.com/Matsemann/collections/matsemanns-ambiguous-cylinders The code & stuff: https://github.com/Matsemann/impossible-objects 
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