Scuba ER Shears mounting bracket (multi-sport)

ER Shears Camera Mounting Bracket

[Note: I updated the design to be more robust after some additional testing]

Useful for a wide variety of outdoor sporting activities where you want quick access to emergency shears.

Having easy access to a cutting tool is one of the critical lessons you learn as a scuba diver. Entanglement hazards like fishing line can be very scary and dangerous. A cutting tool in a pocket or leg sheath you can't reach when entangled is not going to help you. I carry a trilobite-style cutter on my wrist, but I also like to have a set of shears. They can snip heavy line or even steel wire that other knives and cutters can't touch. 

I always dive with my camera, so I designed this Mount that can attach to the camera arm with velcro straps. It is easy to pop on and off and always accessible. I previously used a nylon pouch but it was ugly and falling apart. This mount is a much more compact, clean and presentable. 

I printed with ABS but PETG would also be a good choice. PLA is not a good material for underwater objects, and it may be too brittle as well. The object is mostly solid with 3 walls, and I used 95% infill for pressure resistance underwater.

Attach the mount to your camera arm (or a DPV, Scooter, Kayak, Backpack, etc) with Velcro straps or zip ties. The design of the generic ER shear I use is extremely common, so it is likely to work with many brands.