Filament Sensor for Tevo Tornado

This is a filament sensor for Tevo Tornado. It uses an endstop from the Tornado. If you are using BLTouch or any other bed levelling option, you've a spare endstop. (for Z-min)

This is a pretty simple design which moves freely and works really well.

For the complete setup refer this blog post: [Adding a Filament Sensor to my 3D Printer](https://medium.com/arunoda-talks/adding-a-filament-sensor-to-my-3d-printer-f4d1c6e58637)