Robot Repairs

This cute little robot found his way back to my workshop this afternoon. I made him about four years ago for a game at One Way Out escape rooms in Oakham. This time he had a problem with slightly loose battery connection so I replaced it with a fully enclosed battery box (4xAA) so hopefully he'll be fine for a bit longer. It made me realise I'd never talked about the insides. He actually has a twin brother who occasionally visits too and they both get upgrades over time. The robot is put together during the game so the parts essentially hide inside a larger box. The main change would be in the arms of the device. They were originally phono connectors which on the surface appear pretty sturdy but after a couple of rushed attempts to assemble the parts while the time is running out on the clock those had a tendency to break off. The solution was to remove them entirely, the shoulder joints are now just metal pins that insert into appropriate sized holes. There's a magnet ri...