I'm working on a project where I need to emulate the behavior of sliding potentiometer. I say emulate because I need this baby to be big, preferably with a lenght of 0.40-1 metres. At the same time I want it to be light enough to hang on a wall.
One possible solution I had i mind was using gears connected to a normal potentiometer, but the more I think about it the more complex it seems.
The idea is to shape the "knob" out of styrofoam or some other form of plastic foam.
Any thoughts at all would be appreciated!