If you need a potentiometer for a project, chances are pretty good that you’re not going to pick up a pencil and draw one. Then again, if you’re teaching someone how a variable resistor works, that old #2 might be just the thing.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/02/19/a-classroom-ready-potentiometer-from-pencil-and-3d-prints/