Automatic Fish Feeder
grabcad
That's an automatic feeder for aquarium fishes. It's propelled by a stepping engine. The drilled disk turns around catching food in the wholes and releases it through the whole in the bottom. The brown lip above the bottom hole stops the food from falling through the wholes. After putting some tolerances for the specific 3D printer and few other modifications it can be easily fabricated.
Download Model from grabcad
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