I made this to latch onto the top bar of my chain-link fence to anchor the end of a wire antenna (pully in a tree). It fits this (and probably other) carabiners:
https://www.amazon.com/dp/B0796NN5YY
My printer setup and upgrades can be seen here:
cockrum.net
Fence_Anchor.3MF | 274.8KB | |
Fence_Anchor.SLDPRT | 307.3KB | |
Fence_Anchor.STL | 1.1MB |