I recently dug up an old joystick (Trust Predator) to see if my old flight simulator install would still work.
The joystick however didn't work at all satisfactory (erratic behaviour and drifting) so I took it apart to see if there were any bad connections. And there were... a lot. The reason is that all rotation sensors (which are just simple potentiometers) are located, I thought rather oddly: the 'base' was the part that moved, while the 'knobs' were fixed. As a consequence, the connecting cables move on every joystick movement, and without exception all of them were in a bad shape (especially the solder connections, but also broken insulation etc).
Why would the sensors be placed this way? Is it just bad design (Trust is a budget brand, after all), or is there a good reason why potentiometers used as rotation sensors are positioned this way? Is this design common in other applications?