Gyro POV color trick

thingiverse

This is mostly like any regular gyro toy but has two main differences that make it cool. It is modular and you can assemble it with 4 diferent colors and see how POV (Persistence of Vision) makes its magic creating new colors as you spin it. So print the elipsoid parts in as many diferent colors you have and experiment with POV. It makes a great experimenting magic puzzle for kids as it is easily assembled/unassembled. I designed this for my little nephew's science project at his college, all kids loved it. Part.stl requires baseplate support. Glue the tip if it becames loose. Tip and main axe designed as separate parts to avoid use of supports on this part. POV is a phenomena involving your eyes. Cells into your retina get the color you see but have a little delay until they 'sees' next color. So when you change rapidly the colors as in the spinning gyro, the cells in your retina make the color mix for you !! This works only for your eyes, not for a camera, don't surprise if you can see colors your camera doesn't. Will put pics of my builds If my nephew returns them to me (unlikely). So please post a make if you build one and have the time, thanks. Enjoy. UPDATE (16-JUN-2017):Increased tolerances for the radial parts to ease kids' play.