In this video, I go over my plans for a system where my robot will excrete sweat from his silicone skin. Prior to now, when I read about sweating robots, it is referring to robots whose bones or internal parts excrete water. But I want more than that. I want my robot’s outer skin to sweat too! This way, air in the room that hits the robot will draw heat out of the robot – which is the name of the game. Any time you mix a bunch of heat producing electronics and throw them into a sealed container – no less a rubber skin suit like a humanoid robot, you are going to deal with a massive burden for cooling! All that heat has to be removed and it has to be removed as fast as it is created or else it will slowly start o overheat things. So any and all possible methods that can be utilized to prevent overheating of the robot should be put into place – provided that they are weight and volume efficient enough for the design of the bot. This system was obviously inspired by the human body which also sweats out of its skin. The sweat will be pumped under pressure throughout the entire body of the robot and little pores located strategically throughout the robot will drip this sweat slowly making the robot exterior moist over time. Air in the room will cause this moisture to evaporate and when liquid evaporates it draws heat away from the surface from which the water evaporated – ie is causes a cooling effect. The robot can use this system in places like under the arms, the chest, the lower back, the forehead, etc – just like the human body does. A bonus is that this sweating system will make the robot look a substantial amount MORE realistic since sweat glistening on skin as a lighting effect is very convincing as far as adding realism goes. In 3d games, with modern rendering engines, the most realistic looking 3d scenes always have sweaty characters because the specularity of the sweat makes the skin look so realistic! So not only will it look great but it will cool the robot AND it will only require running some of the cooling lines along the skin and having little holes in the skin and openings in the piping to create a passageway for the sweat to travel out toward the surface of the skin freely in small quantities.
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