Filament Guide with Duster and Filament Runout Sensor

I am looking for a way to integrate a micro switch filament runout sensor to my filament guide with duster/oiler I designed a while ago. So here it is. It works pretty well as it supposed to.

You can paired it with this custom firmware if you do not want to use Octoprint.
https://github.com/3d-gussner/Prusa-Firmware/releases/tag/v3.1.0-001-HFM

There are plenty of information on Prusa Research forum about this firmware. All credit goes to these guys. They put a lot of effort to make this work and it works pretty well too.

Version 2 cap and body has tighter tolerance than the original.

Here are my other design:

Filament sensor
https://www.thingiverse.com/thing:3184729
Filament Guide with Oiler/Duster
https://www.thingiverse.com/thing:1858619

I hope you enjoy my design and happy printing.

Print instructions

Printer Brand: Prusa
Printer: i3 MK2S
Rafts: No
Supports: Yes
Resolution: 200 micron
Infill: 20%
Filament: eSUN PETG Black