Ender 3 Filament Run Out Sensor and Guide

Updated to version 6 as I found the filament would not retract back through the sensor when the print is paused. I have not yet printed and tested it, so please let me know if this version works.

I wanted to fit a filament run out sensor to my Ender 3 and had already printed the guide from Lucky3310 but this did not have the width. I merged both guides together and then added the support to hold the sensor.
The sensor is a cheap sensor from eBay and I also added the pin 27 board.
To use th