This is a flint holder specially designed for the Sissipuukko M95 made by Fiskars in Finland. The Sissipuukko M95 is a bad ass Finnish army knife and the name translates into "Guerrilla knife". This mount holds a 1/2" x 5" Ferrocerium "Flint" steel rod securely in place on the front of the plastic sheath, without any modifications to the sheath.
Besides for the flint holder, I've also included a small cap for the flint rod. This makes the rod easier to hold on to when striking.
Feel free to post you prints!
The only thing that is needed to do is to trim the locking flaps a bit (<1mm) with a knife, for that perfect snap-in feeling. The mounting on the knife is done by a small M4 screw at the bottom and a cable tie at the top. While the fire flint cap is just fixed with some glue.
Thins is my original design and is made to be extra strong and printer friendly with no difficult bridges or steep slopes. I also posted the Rhino .3dm files, which allows you modify the holder for other purposes.