When I bought the Creality runout filament sensor for my Creality Ender 3 Neo, it became pretty difficult to replace the filament since there is a 14mm space between the end of the sensor and the beginning of the Bowden hole to recharge the filament.

To solve this issue, I designed a little box that you can put over the sensor, and with a little piece of Bowden tube as a guide, you can load the filament once again without worrying about bending it.

It already fits in place and you can print it with 0% of fill and without support.