My DIY Submarine Dives As Deep As Possible (PT2)

Let us know what else should we build & what upgrades should we make!

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[superdavey]

Adding a rear camera would allow for constant monitoring of the tether which might help to avoid tangling it.

[adamhajnal]

My brothers, use a steel rope next to the optic cable. Connect them with heat shrinking sleeves every one meter to prevent such entaglements. Keep up the great work!!

[spartanash]

Need a mesh or netting over the propellers to prevent things from entering them.

[CheeseDoodle]

As someone who works with fiber, the fact it started working again after being sucked and torn open in the propeller is insane which led to the retrieval. You're incredibly lucky, fiber in that state is very rare to function and probably have countless cracks

[Bartekwis]

Dobrze widzieć kreatywnego Polskiego youtubera z takimi wyświetleniami i fajnymi pomysłami🙂

[trial]

to stop tanglement in thruster, you should try using honeycomb thruster guards. It significantly reduces tangling

[asdf-qc]

I randomly stumbled on this video, and watching this makes me realize what an incredible time this is for creativity. The tools we have for innovation is mind boggling. The world literally becomes a sort of playground. I get that feeling when producing music, I'm sure these engineers get that same feeling.

[darrelljacobjr]

For the home builder, fiberoptic is really expensive and breaks easily. If you watch the big work-class ROV teams, they've got a huge large-diameter drum they wind it on and off, to bend it as little as possible. I use RG59 coax, with an ethernet-over-coax adapter at both ends. This gives me good connection over as much as 1300m. I also put a stripped-down security system NVR in the ROV, allowing me to have real-time views from 8 cameras.

[LumenPsycho]

Impressive that the sub-drone even moved after all the stuff tangled in propellers.

[ruben]

You missed the opportunity to use a logitec controller

[yurimoreira]

Try to add a geiger counter or a scintillator (which is better in this case) on the next version of the submarine, to measure the radiation level under there. Sorry if I said something wrong, I'm not a native English speaker :)

[finnigan]

Regarding the folks suggesting you oil fill the enclosure. If you want to pressure compensate, or simply pressure balance an enclosure, it's not as simple as just filling the enclosure with oil. You'll need to add a compliant bladder or spring assisted compensator to account for any air bubbles that may get trapped while oil filling. If you go the route of using a compensator, you get the added advantage that if a leak should develop, oil will leak out instead of water leaking in. If you remotely monitor your oil level, this can warn you that something is wrong and give you time to respond. What's often the most difficult challenge of oil filling enclosures is that all the components you have within the enclosure must also be pressure tolerant. Anything that's soft or contains an air space isn't suitable for an oil filled pressure housing since the oil will communicate the exterior pressure to all the components inside. This can include complex things like your camera, but also some simpler discrete components like crystal oscillators, electrolytic capacitors, and much more. component selection at the board level becomes a very important consideration when deciding whether or not to oil fill for pressure balancing or compensation. In many cases (especially when cameras are involved), it's more practical to use a one-atmosphere pressure housing.

[Nikolai_The_Crazed]

1:34 You would have to find an oil that is both non-conductive, and is as non-compressible as water. Water doesn’t compress very well, and if you have an oil that does, the water pressure will compress it into a smaller space and create leaks. Or, if the goal is to negate the pressure on the hull, it will allow the hull to buckle anyway. So having a non-compressible fluid is absolutely critical for preventing implosion. You’ll have to get a fluid with a compressibility as close to water as you can get.

As for the interference with the cameras, it is a Uranium mine, so there’s a possibility of some radioactivity playing with the electronics.

[TobiasKopelke]

Thank you for giving the US distance in Furlong, could not help myself and was laughing 10 minutes straight

[DanteYewToob]

You know this was stressful because he hit 69 meters and didn’t even pause to say “nice!”… this is truly serious business here.

[Aldo.flores]

What an adventure, I was afraid to see this being lost but it turned well, it so amazing that the fiber optic cable still worked. As a diver I can recommend you have a secondary rescue line for the drone, usually that would be mounted on a buoy in order to see it from the surface and slow release the line to avoid being tangle, and of course have a hard long line to pull it back to the top

[bernhardweigl]

6:29 Even CPSdrone got better controllers than ocean gate 💀

[AllExistence]

To avoid tangling, you can also add floating buoy to keep cable in the center and under tension.

[mobiust]

A few suggestions.
First, don't use your communication cable as your physical retrieval cable. Using a metal cable will ensure that you don't potentially damage your fiber optic cable.
Second, guards over your props to prevent debris from getting entangled.
Then the last thing I would recommend, add two pieces of tech. The first, a simple device attached to your reels like a buoy that keeps tension and prevents excess cable from being given. This would drastically help reduce any chances of your own cables getting caught in the props. Also, you can write a program that records your inputs and creates a virtual path for the drone. What this will allow you to do is create a program for the drone that will let it retrace it's steps exactly. The benefit behind this is that you can allow the drone to be able to calculate how to move along a path even without all it's functioning props.

[thermidorthelobster]

The industrial design in this is phenomenal.