Tired of 3D printed key clips and carabiners wearing out and breaking for your keys? Here's an alternative with no moving parts. This an easy print compatible with any rigid filament. There are 3 versions, A 1 post, 2 post and a belt/ pants clip only.

So how does this work? You push the whole piece through your belt loop and pull the flat piece with holes over the outside of the belt loop and then rotate down and that's it! Reverse the process to remove. All models can be used as a clip, though its a back up function on the ones designed to be used with belt loops. If you only plan to use this a pants/ belt clip, then I would suggest the clip only version (labeled pants clip).

I just designed this and have not been able to test its durability. Use at your own risk!! As I use this thing, any weaknesses or improvements will be addressed and the parts updated. Enjoy and as always, I encourage remixes.

P.S. The 2 post models will need supports unless you have amazing bed adhesion. If you want to test your luck, rotate on end to print.