Hidden wire brake sensor

thingiverse

Here is the list of parts you'll need to create a hidden wire brake sensor that operates a brake light on an ebike: an aluminum antenna tube with an inside diameter of 10mm (outside 12mm), a neodymium magnet, a reed switch, and some printed components. Feel free to use or modify this model, but a tip would be appreciated. I've also added two additional files - huls and nippel - which represent the two ends of the magnet tube and a movable shell that allows for quick fine-tuning of sensor sensitivity.