Carabiner Keeper Straps in TPU (2 styles)

These must be printed in TPU to function as intended! The idea is to install doubled-back with a key ring (or other clipped item) kept in between the two loops. If you pick the right size, or resize to your exact needs, the keeper will fit snugly and prevent your clipped item from easily slipping off the carabiner.

Both styles work very well. One prints flat the other vertically. While the vertical one is less ideal for layer lines and stress vectors, TPU bonds very well and they are quite adequate for this purpose. As always, TPU  will benefit from good drying. Lower volumetric speeds tend to produce better results as well, regardless of HF filament or not.

I've printed about 30 of these in all sizes. Also iterated several tiny features just to try it out. For now, I'm offering up this range of sizes based on the items I needed "kept" just now. Meanwhile, if you have specific size requests — or any other feedback — please let me know. Thank you for looking!

Slicer details = easy. 0.4 nozzle, 0.2 layers. Or anything else that you feel like trying with your specific TPU or print  options!

To install:

1. Put one loop of the keeper onto the carabiner. It is generally easier to slide up on to the "nose" of the carabiner than onto the clip.

2. Slide your key ring or other item up against the installed loop of the keeper. But keep everything close to the nose of the carabiner so the next loop can fit on as well.

3. Slide the other loop of the keeper into place.

4. Check fit and slide to desired position. The intention is a snug fit that prevents easy sliding!

These are usable to help keep a  sling/runner in place on a quickdraw for climbing. As always, climbing is a risky venture and you should in absolutely no way rely on these for your safety.