Відео

That thing doesn't need AC as it's watercooled (WC).

Nice video! I feel like I'm watching the evolution of boats in real time and while you're in the early stages, your final result will exceed the current boating knowledge :)

Do you think the underwater fins on the back section would work better if they were progressively sized rather than all the same size? I don't know anything about boats or locomotion but it just feels off to ask all the segments to push equal water. I have no idea if that might help but maybe that's why there are no perfectly rectangular fish lol

Cant believe i missed the other videos, lovely project!

You probably need some sort of keel on the hull too. Would it be worth bringing a hole saw and making some holes in the current fins until it gets better resistance? Or have multiple smaller keels that you can slide on? Clearly this needs stronger connectors, but it's hard to know that without experimenting. Maybe put a large bearing on the previous section? You would also need to make sure they don't gum them up (especially if this is salt water). Definitely good progress though - lots of learning happening! It's easy for me to critique from the comfort of my armchair, but you are doing the hard work!

Keep going, love to see how this turns out..... 1st time boat builder here as well!

I will never get the time back I spent watching whatever this is

Love the idea - I think the 'spine' section needs to be changed. You can see when you're sitting back in the tub, the tail is out of the water. The joint between tub and section 1 is opening up. With a stiffer spine joint, the tail would sit deeper in the water when you lean back in the tub. Since the tail needs to be submerged for propulsion you could consider partially flooding each section, or strengthening the joint so you can lean back and push the tail in. The lean back option might increase joint friction and make tale movement more difficult

DaVinci on his first day 😎

Good idea. If the propulsion unit were deeper, you would be golden. Don't give up.

Add ballast to the segmented tail.

EIGHT MINUTES OF SHIT MUSIC............

Wrap your tub in foam on the sides. The added buoyancy will lift you higher in the water and force the tail down . Give you more stability too

Fantastic love it great idea you are the kind of guy who is needed to populate the world to make it a better place.🥰🥰😃😃😃

I really admire you building something so new and unique. Most of my projects work like this or worse the first time out. I'm pretty handy with fiberglass if you are near Port Canaveral. If you want suggestions, put skegs (downward fins) on the front and all the tail sections that stick down into the water a ways. A long skeg the full length of the front section so it doesn't wag back and forth. You could also put some water or other ballast in the tail.

That is both awesome and hilarious. A few suggestions until you get sorted. 1. Put some outriggers on the boat section. It might save you from further ejection events. 2. Take a paddle with you. If you do have some mixed success you could end up needed a paddle to return to shore. It might also help you with your launches. 3. Let the tail be leaky. Instead of full bouyancy maybe have small holes drilled in that allow the tail to fill and also drain water. You really want the tail to be neutrally buoyant regardless of the depth in the water. Maybe even just a frame with fabric over it would work better. 4. Rather than have a large open no hydrodynamic openings have matching radii on both sides of each joint. Not having consistent flow down the tail is going to make it hard to get a good motion happening.

Glad to see this finally in the water for some real life testing! Can't wait for the next update.

really love the idea of your "alligator "! maybe a tail fin would pertrude the waterline =) can't wait to see this progressing !

Absolutely amazing! Man's journey to the water is captured in these 10 minutes! Way to go! I can't wait to see the next iteration :)

Looks cool 😮

So happy to see this come to large scale testing! Looking forward for version 2!

Love this level of engineering! - the force vectors we can't believe are so massively stronger than we expected, ripping or bending metal in ways we did not expect. So, two things crossed my mind watching this: 1) using airplane terms, your attempting only yaw motions, but it really wants to pitch and roll in many places. Much like a Moray Eel bends its head (rotates) to gain advantage. 2) how cat fish have a very wide head both for stability, but also mechanical advantage and stability when fighting in the water alone. Perhaps turning your front tub 90 degrees is slower, but more stable and powerful.

That was definitely a huge learning experience! It might be good to put a keel on your tail sections. This would actually get in the water, give more thrust, and help you track straighter when coasting. It might also be worth putting some outriggers at the front - to help with stability and help keep the nose up. This is a great start!

You should look into Poor Mans Fiberglass. It's basically laminated canvas using Home Depot parts. People actually make full on boats out of it and it's WAY easier than fiberglass. It would add a lot of strength to the foam. Also, you could buy a little row boat with a flat back and add the tail on there. <3

What an awesome idea! Can't wait to see how this project comes along!

As an idea , you can also join the tail section to the rest with a soft spring .It should lag behind but not completly flop around.

just ride a big fish

Awesome, I always love the behind the scenes of how you create and put all this together :)

Congrats on the creative concept! Inspiring. May I give a suggestion: think about ways to test and validate the amount and distribution of center of masses involved on the full scale build. Also adding a proportional keel under the overall center of mass will help stabilize. This is all assuming you would build something close to human scaled, since its supposed to be paddle-powered. Keep moving mate. Good stuff!

Very interesting project! maybe less efficient than a regular boat, but way more cool! can't wait to see the first prototypes on water!

Cool idea, i like it. Wonder how powerful it be once its scaled up and how it will be power (think solar panel and electric motor be cool, with motor using rotation movement to move the tail back and fourth.)

I wonder, if the connecting sides should be fabric, and the linkage added after. As each section will need to have a lot of ballast, it will move through the water with quite a lot of inertia, and then become more efficient. The water caught between the sections moving with the boat.

it would need a crank shaft linkage across each of the parts..or a camshaft to bump each linkage in the way a row of pistons would move.

Wow! I did like the first version but the final one takes the cake! Nice job :)

thanks for taking us on this very informative journey!

Good failures! Lots to learn from the playing around you did here. I don't mind the camera troubles but if you want to avoid it you could try the trick where you hold the item up against your palm then hold it up in such a way that the camera can only see and therefore focus on your hand and the object resting against it.

Whoa great idea at 5:00. Love the inspiration to use razor blades as the mold. Haven't even finished the video yet but I want to stop and thank you for sharing that inspiration. That'll be a very useful concept for all kinds of creations.

Say Gex

Cool work

I wonder if the best sticking surface, the one exposed to air, formed some sort of "turing pattern" and ended up with micro ridges. Since turing pattern formation can be modeled with reaction-diffision systems, maybe there is a chemical you can spray on the molds or air facing surfaces to help with ridge formation.

I always wanted to try this myself... I always thought using the superfine micron mesh screen as surface texture mold would work but I haven't seen this other videos as to why it didn't. The other idea I had was to maybe try using sub micron bubbles in the silicon to make the surface covered with random submicron pores. Like use an ultrasonic homogenizer and some kind of long lasting foaming agent like drexel. I always thought maybe a submicron jagged surface would be easier to do this way. Anyway good luck! 🎉

Great videos as always

Wow what a learning experience! Looks like it kept you as busy as an ant😉. Nice job :)

Wow congrats man. That was way quicker than I thought it would take. Good problem solving

i use braided fishing line 40kg+ for robotic arm, no strech over time also

This is super cool 😮

Nice behind the scenes! Love the "crap" moment 😉

... monofilament, magic, has less friction, stronger for the given weigh, and is almost invisible. Thoughts?

Jaimie Mantzel made a clever 3D printed fan mechanism using the spring from a tape measure. You might look into that as a possible lighter energy source for this guy. Just search for "wind up fan" and his name.

epic