I recently fixed an old fluxgate compass and it occured to be the mechanical heading display would be a useful concept to use in other projects. The display looks very similar to the movement used in analog meters but it allows full 360 movement, similar to the old magslip displays.
I’ve not been able to find a source for these movements and I assume they are no longer made. A stepper would be a good alternative but it would need an absolute position sensor of some kind. A simple sensor e.g. hall effect that detects the zero degrees position would be enough. I assumed they would be easy to find but no luck. Does anyone know a source for either the analog movements or a position sensor that could be used with a stepper? Since the stepper will directly drive the indicator, ideally it would fit directly on the motor spindle.