Filament Sensor housing that fits the E3D Titan Extruder

I got this filament sensor: https://www.banggood.com/1_75mm-Filament-Material-Detection-Sensor-Module-For-3D-Printer-p-1244283.html

There was way too much friction. So I redesigned the housing to use two small pieces of bowden tubing. This also lets the sensor fit nicely on the Titan extruder.

Drill all the way through with a 2mm drill bit so the filament can pass.
Also carefully drill both ends with a 4mm drill until you reach the depth stop.
use 2x M3 Brass inserts in the bottom of th