Hollow shafted potentiometer? Answered
I have a project I'm working on which has two halves that are connected using a potentiometer as the axis, resulting in the two being able to twist, changing the resistance of the potentiometer. The problem I have is that the battery is in one half and the circuit is in the other half. I have to somehow get the power to the circuit, but still have the pieces still be able to rotate. I can't have the wires just sticking out of the side because it has to twist, and that would look horrible. My first thought was to drill a small hole through the shaft of the potentiometer, so that I could run the wires through that, but when I tried to do that, it turned out to be a lot harder than I expected and I now have a busted potentiometer. I would really like to avoid slip rings of any kind, as they would be exposed to the elements. Does anyone have any ideas, or any advice on how to drill a nice hole through a steel rod lengthwise? Ideally I would drill the hole, but if that's too difficult, I'll try whatever.