Tension free Filament Clip

Filament clips everywhere, so why not another one?

While there are many clips fitting various spools, they will fail over time due to different problems. PLA clips lose tension, rubber bands deteriorate, some are a hassle to use and some simply don't fit. 
Some clips rely on the filament itself to hold its place, like Grandma's favorite filament clip, which I think is among the easiest to use. However, for me it has one flaw: the filament tends to break at the tension point. At least some of my filament.

This filament clip is different! It eliminates tension on the filament and on the clip, ensuring durability while maintaining ease of use.

In the close-up picture, you'll see the clip in action. The blue filament represents the first step: placing it in the groove. The red illustrates the second step: sliding the end through the hole to secure the blue one. Naturally, your spool will be a single color, but this two-tone demonstration clarifies the usage process.

There are two versions.
The original one can be printed with a well tuned printer and works perfect for my Bambu Lab X1C. However when I tried this model my Ender 3 S1, the tolerances where a bit too tight. For those printers, use the model with a bit more tolerance.