Hotwire Prototype #1
This was the first prototype of what eventually became the Hotwire carabiner. I cut it out of a block of some military "metal matrix" which was incredibly gummy to machine. Most of it was done with a Dremel tool. The wire for the gate came from a nearby hobby store and by pure luck, it actually worked fairly well, or at least well enough to see the potential for wire gate climbing carabiners.