Filament sensor for Creality CR-10 using Raspberry Pi Octoprint

Filament sensor holder for Creality CR-10 for the type of filament sensor shown.
Requires 2x M3 x 12mm screws + nuts

Update: 2 new STL files:
1) For 3mm wide brass inserts
2) For 4mm wide PTFE (bowden) tube inserts

Raspberry pi connection
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Connect to Raspberry Pi GPIO pins.

https://www.element14.com/community/servlet/JiveServlet/previewBody/73950-102-11-339300/pi3_gpio.png

Positive to pin 1
Sensor out to pin 7
Ground to pin 9

Octoprint setu