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This is PLUMBERbot...a BEAM Symet using a simple solar engine. His name derives from the fact that his apron is a teflon tape round and his hat is a plumbing trim surround that you'd find in your bathroom or kitchen. His solar cell captures the light and stores it in his capacitors. When his capacitors fill up, the energy is dumped to the small dc motor. In direct sunlight, this little guy runs continuously as seen in the video. Under less intense light, he'll twitch about when he feels like it. ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/plumberbot-symet