Scuba Emergency Sheers Camera Arm Mount

[davehicks]

Scuba Emergency Shears Camera Arm Mount​

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, etc) with velcro straps or zip ties. The design of the generic ER shear I use is extremely common, so its likely to work with many brands.

Download from Makerworld:

Scuba Emergency Shears Camera Arm Mount by awkward_swine MakerWorld: Download Free 3D Models

ER Shears Camera Arm MountHaving 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...

makerworld.com

 

[Jak G]

That looks like a good design, very nice features. I have found PLA and PLA+ to be long lasting for underwater use. And if it starts to crack, I could print a new one. I agree about nylon pouches falling apart, very annoying.

 

[davehicks]

That looks like a good design, very nice features. I have found PLA and PLA+ to be long lasting for underwater use. And if it starts to crack, I could print a new one. I agree about nylon pouches falling apart, very annoying.

Most of the filaments do better in the elements than what people think is the common wisdom. Still, PLA will swell in water eventually and the brittleness might break the spring fit arms that hold the shears in place.

I have found that ABS is the cleanest, fastest, and most durable material i print with my P1S. It is also lighter than PETG. So I use it for a lot of my functional prints now. I did make the first few draft prints of the design with cheap PLA. ABS and PETG are a bit more spring-like which works better for this object.