A remix of: Ender 3 -Filament Runout Sensor - PFTE Tube connector ready by RamSet
All the roller switches I had in my parts stock had longer levers than the ones everyone else seems to be using. So I stretched this out a bit to fit that particular part.
A longer throw on the switch might be a good thing. This means it will take less force to depress the switch, meaning less resistance on the filament and thus smoother extrusion.
FYI, the switches are the same as this one.