• In South Africa Robot education starts with the Lego Robots The Geekfest there were 8 robots competing in the under 20kg class There are in Robotwars various type of robots, spinners , hammers etc falling in weight classes Antweight: 150g. Featherweight: 12kg. Lightweight: 27kg. Middleweight: 54kg. Heavyweight: 100kg. Super Heavyweight: 200kg.