Video: This Octobot Walks Using Shape-Memory Alloy Tentacles

Video: This Octobot Walks Using Shape-Memory Alloy Tentacles: The OCTOPUS Project isn’t showering us with details at this point, but via IEEE we know that the larger tentacles at the front are the SMA Arms (for shape-memory alloy) that are manipulated purely by heating the material to change its length--no servo motors or cable assemblies required. The rest are silicone with steel cables down the center that are actuated by arrays of smaller nylon cables.