I liked the Tesla snake robot for charging.[1] But it upset many people. It looks complicated but is a rather simple mechanical design. There are several motor

I liked the Tesla snake robot for charging.[1] But it upset many people. It looks complicated but is a rather simple mechanical design. There are several motors in the base pulling on cables. The arm itself is just segments, disks, and cables. So all the complexity is in the base, and you can surround that with a metal or concrete box to prevent damage. Arm replacement wouldn't be too expensive. Tesla is now touting wireless car charging, but that's a lot of power to transmit through air. [1] https://www.youtube.com/watch?v=uMM0lRfX6YI https://www.youtube.com/watch?v=uMM0lRfX6YI