Andrew Terranova from Let’s Make Robots mods the Spazzi Robot project from MAKE 27 to use less expensive solenoids. He calls it the EconoSpazzi. Learn to build Spazzi on Make: Projects: http://makeprojects.com/Project/Spazzi-A-Solenoid-Powered-Dancebot/1074/1 More info: http://blog.makezine.com/archive/2011/08/econospazzi-robot.html
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