The SphereBot can plot images on spherical objects like table tennis balls, golf balls, eggs etc. It is inspired by the original EggBot by EvilMadScientist, but built from 2 old stepper motors and some steel rods (all cannibalized from old flatbed scanners), some MDF and plywood and a few 3d printed parts (printed with my MakerBot Cupcake). The electronics are simply an Arduino and two Polulu A4983 stepper motor drivers (on the bread board). The custom Arduino firmware directly interprets GCode More

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