@@custard228 Discovered the channel when this crazy-smart guy was trying to convert an RC car into some type of land based ekranoplan thing. RUclips algorithm knew I would enjoy keeping up with all Daniel’s adventures. I’ve never looked back. Enjoy! 👍🏼
Already done. Microtransat is a competition for autonomous Atlantic crossing. It seems that the competition program is no longer running. Anyway, it has been done in the past and the consept exists.
Heya! I have some experience with this sort of thing - the liquid level sensor corroded because of the DC voltage applied, which caused the corrosion. There are some techniques to mitigate this: you can either apply the voltage for a brief time for the measurement once every number of seconds to extend lifetime or apply alternating polarities with each measurement to reverse the electrochemical effects. Either way, and I say this with the utmost respect, you need to up your waterproofing game. It sorta hurts to see so many of your projects scuttled by water ingress when your waterproofing amounts to just silicone, which sorta sucks for this. I recommend you check out waterproof cable glands with PE tubing to carry conductors and some more design considerations for things like acrylic windows like labyrinth seals and compression of silicone/other seals POST-cure. Love your stuff, hate to see it fail due to the world's greatest chemical :)
I think he just needs to take his water sealing more seriously. Print off two more of the hulls, turn them over, silicon them to the float hulls, and go crazy sealing all the other gaps. And also getting the voltages right.
As soon as he mentioned a level sensor and Arduino for the bilge pump my thought was "way too complicated". Bilge pumps for full size boats just use a float and a switch to activate, which he could have easily replicated with a micro switch.
@@FireCat005a foam pad. Attached to a mechanical switch above it. When water gets in the foam floats. Turning on the pump. The foam sinks. The switch disconnects. So do I need an electronic component to monitor for water to get wet?
Have you considered having the propellers reverse occasionally to try and clear the weed? That's what we do on our narrowboats to avoid having to manually clear weed. Maybe monitor voltage drop and program in a reverse phase when it needs? Love your videos 🇬🇧😊
From my experience with RC boats, once it's on there, it's not coming off until you remove it manually. At this scale, every bit of weed is the equivalent of 10 feet of rope to a full size boat. I've actually ripped a rudder off just from vegetation that got somehow looped around it and wound up by the prop.
@@picklefart I mean I have my doubts too, but solar tech keeps advancing and it would be a neat challenge to see how small you can get it and still make it increase the range.
There are thin Solar Foils which have a very small weight. This on a nice delta wing. Maybe 50w will be enough to power. A small 2s1p 18650 Liion Battery for the start. I think maybe it could work. I had a little Delta with only 120g with 2s 850mAh LiPo. But would not recomend LiPo cause of charging with Solar.
What would be cool to see is a observation and data plane doing circles around the boat and sending the data to shore so you don't have to drive behind it!
Use a capacitive water detector! Those can be encased in conformal coating and will still detect water. The resistive one you used is well known for not working long term
@@PanSatyr yes! Me too, in a hydroponic setup with water that is way too conductive for any other option. Did you come across the fact some of those capacitive sensors are actually sold with a defect? There are a few videos online about the problem and the fix. A few of mine had that issue. As long as the broke ones are avoided or known about, totally agree they are the way to go!
@@minibigs5259 not only does that common sensor not run on AC (it would require a completely different sensing and interface circuit of your own design), AC power definitely still causes corrosion due to stray currents and other imbalances. That's why capacitive sensors are a better bet, there doesn't need to be any interface to the water at all
I look forward to your next autonomous ship mission I hate to say it, but I think it's time for a new hull design after your next set of upgrades, incorporating everything that you have learned previously into making an efficient autonomous ship that won't be causing you any problems Btw, ever thought about doing a community event? Other people making autonomous ships and sailing along yours, competing for efficiency, range, who gets to the finish first, etc I would be down and I'm sure others would be too
I like this idea. I also think it would be cool to see a snowcat-like vehicle that floats. It seems like adding paddles to the tracks would make it energy efficient for slow speeds.
4:49 Andromeda Strain scene where the surgeon cuts the country doc's deceased body and sand pours away. 7:16 you could add two extra flotation tanks to the left and right of the motor directly on the transom. Basically you take some foam blocks, cover them in fiberglass (making sure they fit the shape of the transom) and you screw them in place. FIY you should over drill all the holes you've made and fill them with resin. Water will get inside the foam layer and you'll trash the boat if you skip this step. edit 3: to make it clear, the resin is in there to create a barrier between the foam and the screw.
I wonder if there are any propeller designs that are designed to minimize string tagling or trapping weeds. These designs are probably not energy efficient, but at least you won't have to worry about the propeller getting stuck.
I was thinking red tape over the ignition or similar...I've been in a boat in the middle of the bay, when I realized it was rapidly flooding, had to use the power to get a across to the marina lol.
I'm hesitant to get too close cuz it's an autonomous boat, I feel like i just need to let it do its thing. You know, keep my distance. "I don't want to be a helicopter parent" 😂😂😂
For these autonomous boat projects, I wonder how a paddle wheel might fair. There would definitely be a large loss of efficiency compared to a prop, but with hopefully less trouble from seaweed you might see an overall performance boost. Seaweed could still get caught but would be more likely to fall free since the point of rotation is outside the water, and a comb could be made to grab hanging seaweed as the paddle left the water if rotation is fast enough. No clue if the overall performance would be better or worse but might be worth at least investigating. Also, would be interesting to combine such an old propulsion method with the modern aspects of being electrically/solar driven and autonomous.
I'd go with a side wheel design myself in this case. Driving two (or more) side paddle wheels would be less complicated than a stern-wheel (unless you mount the electric motor outside the hull). Differential steering would make a lot of sense for a "small" autonomous rather than hull penetrations for the rudders.
I think you should scale the boat up to something about the size of your Boston whaler. Maybe identical canoes or kayaks with a frame to spread them about 4 or 5 feet apart you could use a small gas powered motor for an adventure like this until you could work out an electric motor and battery set up. It would be light in the water and very stable. Might need to add a keel or skag for better tracking especially with side winds and currents. It would be large enough to be avoided by most craft. You could also work on self correction like the self driving cars it make it truly autonomous.
I'd check that bike fuel pump to make sure it 1. doesn't ignite the fuel in the VST and 2. make sure it is creating the correct fuel pressure for that motor.
Hey man, been noticing the improved camera equipment and shooting techniques. Really stepping up your game in the production department recently, and it shows!
okay so there seems to be some confusion on what "plaining" is , it is not when the stern wash separates from the transom , it is when the boat lifts onto the surface of the water or ever so slightly below it , the boat will give a very distinctive feeling when it does this , the front will go from pointing upwards to leveling off once the boat has reached enough speed to overcome the drag of the water against the hull , plaining doesnt usually happen until around 12mph
If those relais are electromechanical they almost certainly have been overdrawing current. If there is no back emf diode it could also fry the pin. But what i've seen on data sheets some solid state relais also have significant current draw and those tiny cheap regulators really can't handle much.
Yeah, I'm really surprised it fried the voltage regulator before it fried the Arduino (of course, it's possible the Arduino failed short first and then the voltage regulator)
Conformal coat the arduino's and boards with clear nail polish...just paint a few layers over it to protect them from moisture/corrosion Also...run marvels mystery oil in the gasoline and put some MotorKote in the oil and the lower gear section for hyper lubrication and help prevent water damage Very cool! Keep em coming!!!!
7:33 - If you think that looks amazing (it does), keep in mind that the Freefly Ember is $18,000...yea, EIGHTEEN GRAND and that's body only. No lens, etc. 😳
The projects you have created are so impressive. There is a lot of R/C stuff but the quality of your creations are just Insane! The mix of your knowledge/tech abilities/engineering abilities & just overall creativity is just mind blowing to see the things you end up creating & the quality they are capable of performing at, is just mind blowing. The way you've made crafts that run off of such efficient power or solar power & combined with autonomous traversal is just crazy stuff. I love your channel dude. Always great content. (I hope to see more underwater ROV projects in the future. They are fascinating)
Did you add flyback diodes accross the relay? Even if the uC can handle the voltage and current needed to activate the relay, an inductive load like that will produce a large flyback voltage when you shut it off, all that stored magnetic energy needs to go somewhere and if you dont give it a path like a diode it will just keep upping the voltage until it shorts something out.
I'm digging the tohatsu motor and the repair docu. We're there flyback diodes on the Relais formthe bildge Pump ?maybe the inductive pulse when turning the coils of fried the arduinos. It's pretty suspicious that they both failed in the same way
Is it possible to mount a rotating knife before the prop to cut up any sewed? Another thought is to add a depth sensor to the boat and letting it run in a scanning pattern on the lake and then use those measurements to see what can be found on the bottom of the lake? The episode after that is called treasure hunting.
When thinking about boats hulls that work under low displacement you should look into a rowboat with a “shallop” or “double shallop”design. They have sweeping lines that come down to a V shaped bottom. They work amazing at low speeds and are commonly used as sailing dhingys. I’ve seen them be incredibly stable even at low speeds like 2 or 3 knots. An electric motor on one would work amazingly as they do so well at low speeds
For alternative propulsion, you can combine both wind and water : For wind, there is the classic sail, but there is also the amazing Kite, which could make a great project, a self launching and recovering Kite, in fact, you could even generate electricity with Kite. There are the : *Pulled by wind then retrieve through gliding. *Pulled by wind then retrieve through flag position. *Figure eight. *Spin on itself. Ways of making electricity from a Kite, all pull the craft while unwinding the cables if it has enough resistance and both the figure eight and spin method allow to still get propulsion during retrieval, but they are harder to control, while the gliding method (mostly with a self/neutral stabilized sail) is the easiest to control with simple electronic. As for the water propulsion, you can combine multiple types, but some are almost seaweed proof, like the FIN'X or the more typical undulating fin solution, which isn't that hard to make with as it work with a single crackshaft, as here you only need to control longitudinal thrust, unlike all those submersibles. One thing I thought about would be to make a Trimaran hull design, but with the side hull on hinges with a simple breaking/locking mechanism, they would use the wave movements to generate electricity, the same way a "sea snake generator" do works, except it would serve both as a "suspension" to absorb waves impacts and generator. A full bridge rectifier would allow any movement direction to always produce the same polarity, with a simple angle limiter and dampener, it could probably work well. As for the water problem, you could have two hulls, one inside the other, the pump intake and water detector (which could be homemade in 316 stainless steel or other corrosion resistant conductors as a series of close enough "pins" to detect non-salt water's conductivity) and a water pump type which can run dry, such as a peristaltic one which are not that hard to homemade, since the mechanism isn't touching the water, any small particles won't cause issues inside it, with a timer that enable it for multiple seconds after the water detector is triggered, so the movements of the boat won't make it "miss" the water. And waterproof the electronic with a simple hot glue gun so only the wires and possibly radiators (as it may overheat inside that) are going through it, same for the "inner" hull, which can be totally sealed off using a lead that contain the same hot glue (so you don't have to engineer a perfect fit lit with joints), bonus if you include a "hatch" with all the connectors for recharging batteries or connecting microcontrollers.
For constant water level detection without corrosion you want a capacitive soil moisture sensor, they work with arduino. I think they might work pretty well even once coated with salt. I use it for my automated watering system, in the bottom of my pots I have the sensors, and when they dry out below a certain percentage it tells the arduino to send more water through.
Its interesting how many people try to build electric boats out of planing hulls. Paddle wheels are good options for seaweed. As for the bulge pumps, float valve or just two stainless steel contacts an inch apart. That can switch the pumps directly, or a relay or just sense resistance change. Salt water will eat any of it so build it assuming that. Thick stainless will last a while.
the drag of the water really helps with the 3d printed parts when in rotation because they are being compressed instead of stretched by the g forces from spinning
Just a heads up, going slow and close to seal covered bouys, can be risky. A friend lost his boat when a 250kg bull that couldn't get space on the bouy, took the easy option and jumped on his boat flipping and sinking it. That also left them swimming out of a white shark feeding area in a panic
On racing sailboats there is occaisionally an option for a weed-cutter keel or a rudder. Basically a knife edge that cuts through seaweed. A couple razor blades upstream of your prop will get the job done. I think I've even seen it on rc sailboats.
been a fan of the channel for a quite a few years now, good work sir I love the autonomous things you do and look forward to more, UK expat living in Spain
I love the “Place where the aircraft carriers are”. Better known as Bremerton and Port Orchard the body of water is the Sinclair Inlet. I love sailing in that area but where the 3 channels meet the winds get all sorts of confused and it makes for an interesting sail.
I used to manage a fleet of 20 Whalers for a youth camp. We had one hull like yours. It was my favorite as the wet well could be plugged and it kept the main area dry. I had one staff take that boat out after work to go fishing and he tossed the builge pump overboard and filled the wet well with sea water to keep bait fish alive. Creative but not the best for the motor that was being washed with the overflow.
Very cool project, and a good attempt! For a more robust liquid level sensor, and something that isn't susceptible to corrosion, perhaps a switch connected to a small float would be better? Like in a toilet tank, but with an electronic switch on the end of the float.
Oregon welded fishing boats use something called a stomp great over the jet pump intake. I wonder if you could 3-D print a similar device actuated by a servo? Great video thank you for sharing
Since seaweed most probably would cause higher amp draw, an automated motor reverse function for a few seconds could be enough to clear the propellers. Some propellers are also more weed protected than others. They are seen on Minn Kota trolling motors for instance.
Super fun - I took a lot of inspiration from your videos and made my own boat. Currently changing my own from inav with a standard analog vtx to ardupilot with openipc as the video control link.
here before rctestflight creates a yacht in a couple of years, fully autonomous and solar-powered, it becomes known as the "drone hub" for all local pizza deliveries
For your water detection in the hulls you can use a reed switch attached to a rod with a lightweight puck that will float on the water. much simpler and robust than your water detection boards you have now.
To clear the seaweed, would an automated (or manually-triggered) routine to spin the props backward and forward rapidly a few times help maybe? Or maybe replacing those side prop guards that are meant to keep seaweed out with servo-actuated arms that stick out wider and can be pulled in occasionally to let any collected seaweed fall away?
Those water sensors corrode because powering them makes them act like a battery. They last much longer if you only switch the power on for a moment every now and then. The other way to detect water is to run the pump and measure how much power it draws. It takes more power to pump water than air.
You cruised right past Keyport Naval Base! You should look that place up, while they mostly work on maintaining torpedo stockpiles, there is a development squadron that launched 30ft autonomous submarines that - like your boat - robotically navigate around Puget Sound! The model I used see there was the LTV-38, which was a large-displacement unmanned undersea vehicle (LDUUV)
Could you thread or put a groove in the prop shaft that would try and push the water down and out of the shaft tube back to the prop? It could help keep water out if that is where the water is coming in.
I wonder if you could install a sharp blade close to the propeller shaft that would cause the seaweed to rip itself apart when it finds its way around the shaft or even using a fire wire brush along the top of the shaft. I've always wondered if that would be something that would aid the boat in clearing such obstructions, i usually seem to get the same thing happening to my little scale boat after i've taken it out. I did find putting a small moulded shim shroud from the hull to the back end of the prop can aid in the prevention of clogging, though not sure what it would do to the efficiency of the boat.
solar boat needs floating solar panel. Pontoons or box tank or something. A three point tether set up can allow a tandem that turns in line with the boat. I have pulled kayaks with my ekayak this way and it works. it would work better with wider boats.
Have you ever tried razor blades to keep the propellers weed free? I think I remember someone making prop guards out of razor blades. But that only gets rid of the problem of seaweed getting _into_ the propeller _in one piece._ It could still get cut in half with both halves ending up in the propeller. And once seaweed is on the propeller, an upstream guard won't do _anything._ For that part of the problem you'd need to position a blade where the seaweed would trail off of the propeller. Or just make the propeller have the cone shape of those prop guards at 25:36. That might still need the blade where long seaweed is trailing off of the propeller, since any long trails would quickly get twisted into a braid, which pulls them towards the center.
Maybe a hobbie catamaran sailboat would be more appropriate for solar sailing. You could mount the solar panels above you so you can get shade and power without the chance of the panels dipping into the water.
Tip on those liquid level sensors. If you use a digital pin from the Arduino to power them only when taking a reading (say, 5 milliseconds on to take a reading, every 5 or 10 minutes), corrosion will still happen but much much slower because power isn't flowing through them all the time. Couldn't tell if you had them set up in that way but if not and if you use them again I'd recommend trying this approach. They don't pull very much power at all and they can easily be powered by the max 40mA that can be supplied by a digital Arduino Nano pin pulled high.
"Dude, you should snort some of that and see what happens." 😂 Wouldn't be nearly as funny if I hadn't been thinking "he ought to snort some of that 💩." 😂🤣😂
Have you ever considered using a pump drive instead of a prop to avoid the seaweed problem? I've been working on a 3d printed autonomous boat (inspired by your videos) and I used bilge pumps for both the drive and steering. It works great in bathtub testing, not ready to hit the big water yet though!
🎯 Key Takeaways for quick navigation: 00:00 🚤 *The video is sponsored by Factor; the creator attempts the longest autonomous boat mission around Bainbridge Island.* 01:26 ⛵ *The Boston Whaler, previously an electric boat, is converted back to a gas motor for efficiency, becoming a support vessel for monitoring the autonomous drone boat.* 03:47 🚤 *Testing electric motors on the Boston Whaler; achieves plane with 18s batteries, exploring the advantages and challenges of electric propulsion.* 06:52 🛶 *Successful conversion of the Boston Whaler to a gas-powered boat using a 50 horsepower outboard motor.* 09:00 🍽️ *Brief sponsor segment for Factor meals, promoting convenient, healthy, and pre-prepared meal options.* 10:05 🚤 *Preparing the autonomous boat for an extended mission by adding extra batteries and addressing potential seaweed interference.* 11:55 📡 *Monitoring the autonomous boat from the Boston Whaler due to challenges like commercial boat traffic and seaweed interference.* 16:41 🌫️ *The autonomous boat encounters challenges such as low tide, fog, and potential collisions with other vessels during its mission.* 20:31 🌊 *Seaweed in the propellers causes issues, prompting the operator to clear them and observe improved speed and performance.* 20:44 🚤 *The drone boat faces challenges with seaweed, affecting its efficiency during autonomous missions.* 21:25 🌊 *Solar panels were removed; without seaweed, the boat has enough battery power for all-day operation.* 22:14 🚁 *The user sends the drone up to investigate a Y-shaped channel, looking for whirlpools, eddy currents, and dolphins.* 23:16 🚢 *The boat navigates a challenging channel with ferry traffic, considering manual override due to fast currents.* 24:47 🔋 *The boat experiences battery issues, leading to a premature end of the mission; lithium iron phosphate batteries are mentioned.* 25:30 ⚙️ *Seaweed vulnerability prompts the need for a new propulsion method; the next video will explore potential solutions.* 26:23 💧 *The boat sustains water damage; circuit boards fried, but battery cells remain intact for future projects.* 27:19 🔥 *Water damage leads to burnt components, specifically a voltage regulator on the Arduino, affecting the boat's electronics.* Made with HARPA AI
I suggest to move the fuel tank forward of the console for better balance. Even mounted under your forward wooden bench would help loads with the stern water problems. Amazing work as always, keep it up!
about the water fill sensors, I tried to use them for a project (fill sensor for a catheter bag) and they did have corrosion issues. I looked into photoelectric water sensors (which are probably the better option for your project) but they were a bit more expensive
I think prop fouling could be detected if you have current feedback from your motor drives. I love watching all the engineering that goes into these boats!
Hi, a long time ago I sent you a message on Instagram about hubless props. Apparently they're a lot less prone to seaweed and other stuff. You only have to do a cycle backwards every once in a while. And you have to incorporate it in the hull otherwise you still have surfaces where seaweed could hang onto. Sorry for my bad English btw.
use a float on a lever like toilets do for the water level sensor. I'm sure a tiny one will still work. You can make that out of plastic so it's not gonna corrode when submerged and stop working
Would blades at the base of the spinning prop do anything to help with the seaweed problem? I've seen it done with larger boats and wonder if it will work the same for smaller ones like this.
you guys should bring back the long range solar glider, it was such an interesting project
Good idea
that is how i found this channel, solar gliders are just super cool!
I think so too!
Agreed - have the increase in laws made this not viable to make anymore?
@@custard228 Discovered the channel when this crazy-smart guy was trying to convert an RC car into some type of land based ekranoplan thing. RUclips algorithm knew I would enjoy keeping up with all Daniel’s adventures. I’ve never looked back. Enjoy! 👍🏼
A transatlantic drone boat would be ridiculous but an absolutely incredible feat.
There was that guy who built SeaCharger, a solar autonomous boat that went from Cali to Hawaii then almost to New Zealand.
transpacific might be easier by location...
we have the technology.
it is defintely doable but will need a very stable boat and definitely some solar panels
Already done. Microtransat is a competition for autonomous Atlantic crossing. It seems that the competition program is no longer running. Anyway, it has been done in the past and the consept exists.
I’m always left speechless at just how creative and technically skilled this guy is. He’s always building the coolest stuff!
Heya! I have some experience with this sort of thing - the liquid level sensor corroded because of the DC voltage applied, which caused the corrosion. There are some techniques to mitigate this: you can either apply the voltage for a brief time for the measurement once every number of seconds to extend lifetime or apply alternating polarities with each measurement to reverse the electrochemical effects.
Either way, and I say this with the utmost respect, you need to up your waterproofing game. It sorta hurts to see so many of your projects scuttled by water ingress when your waterproofing amounts to just silicone, which sorta sucks for this. I recommend you check out waterproof cable glands with PE tubing to carry conductors and some more design considerations for things like acrylic windows like labyrinth seals and compression of silicone/other seals POST-cure.
Love your stuff, hate to see it fail due to the world's greatest chemical :)
Universal solvent strikes again
I think he just needs to take his water sealing more seriously. Print off two more of the hulls, turn them over, silicon them to the float hulls, and go crazy sealing all the other gaps. And also getting the voltages right.
As soon as he mentioned a level sensor and Arduino for the bilge pump my thought was "way too complicated". Bilge pumps for full size boats just use a float and a switch to activate, which he could have easily replicated with a micro switch.
@@FireCat005a foam pad. Attached to a mechanical switch above it. When water gets in the foam floats. Turning on the pump. The foam sinks. The switch disconnects.
So do I need an electronic component to monitor for water to get wet?
Can you recommend me resources for waterproofing stuff like this? Maybe some channels that do what you recommended
Have you considered having the propellers reverse occasionally to try and clear the weed? That's what we do on our narrowboats to avoid having to manually clear weed. Maybe monitor voltage drop and program in a reverse phase when it needs?
Love your videos 🇬🇧😊
Yes and run bilge pump on timer or mechanical switch 😊
From my experience with RC boats, once it's on there, it's not coming off until you remove it manually. At this scale, every bit of weed is the equivalent of 10 feet of rope to a full size boat. I've actually ripped a rudder off just from vegetation that got somehow looped around it and wound up by the prop.
I'd love to see you revisit solar autonomous planes and see how small you can make one. Is it possible to go under 250g?
I can’t imagine that being possible. I’d like to see it if it is though
@@picklefart I mean I have my doubts too, but solar tech keeps advancing and it would be a neat challenge to see how small you can get it and still make it increase the range.
There are thin Solar Foils which have a very small weight. This on a nice delta wing. Maybe 50w will be enough to power. A small 2s1p 18650 Liion Battery for the start. I think maybe it could work. I had a little Delta with only 120g with 2s 850mAh LiPo. But would not recomend LiPo cause of charging with Solar.
What would be cool to see is a observation and data plane doing circles around the boat and sending the data to shore so you don't have to drive behind it!
This this this
And then another observation and data drone observing the initial observation and data drone ect ect..
The reason why he drove behind was not because of data, but so he could interfer if something goes wrong.
Use a capacitive water detector! Those can be encased in conformal coating and will still detect water. The resistive one you used is well known for not working long term
I use a "Chirp" for my plants..
I tested capacitive sensors in dirt for an entire summer in the midwest and had no issues with them. Definitely the way to go for water sensing.
@@PanSatyr yes! Me too, in a hydroponic setup with water that is way too conductive for any other option. Did you come across the fact some of those capacitive sensors are actually sold with a defect? There are a few videos online about the problem and the fix. A few of mine had that issue. As long as the broke ones are avoided or known about, totally agree they are the way to go!
Or set it up AC so it doesn't dissolve
@@minibigs5259 not only does that common sensor not run on AC (it would require a completely different sensing and interface circuit of your own design), AC power definitely still causes corrosion due to stray currents and other imbalances. That's why capacitive sensors are a better bet, there doesn't need to be any interface to the water at all
I have to say. This is one of my favourite RUclips channels. I really enjoyed the last boat rides. Such a relaxed vibe! 10/10
I look forward to your next autonomous ship mission
I hate to say it, but I think it's time for a new hull design after your next set of upgrades, incorporating everything that you have learned previously into making an efficient autonomous ship that won't be causing you any problems
Btw, ever thought about doing a community event?
Other people making autonomous ships and sailing along yours, competing for efficiency, range, who gets to the finish first, etc
I would be down and I'm sure others would be too
18:26 Song Name: Log - Laxcity
I wonder if a paddle wheel boat would solve the seaweed problem
I like this idea. I also think it would be cool to see a snowcat-like vehicle that floats. It seems like adding paddles to the tracks would make it energy efficient for slow speeds.
I love the shots of the beautiful northwest scenery and wildlife almost as much as the project itself!
4:49 Andromeda Strain scene where the surgeon cuts the country doc's deceased body and sand pours away.
7:16 you could add two extra flotation tanks to the left and right of the motor directly on the transom. Basically you take some foam blocks, cover them in fiberglass (making sure they fit the shape of the transom) and you screw them in place.
FIY you should over drill all the holes you've made and fill them with resin. Water will get inside the foam layer and you'll trash the boat if you skip this step. edit 3: to make it clear, the resin is in there to create a barrier between the foam and the screw.
I love how much time you put in to recording your voice-over. Extremely concise.
For those wondering what part the autonomous boat part is:
9:50
Use code RCTESTFLIGHT50 to get 50% off your first Factor box at bit.ly/3JgFdFQ!
Full size solar glider! And make peter fly it lol.
i just read in the news how microwaving anything in plastic might be really bad for you
I wonder if there are any propeller designs that are designed to minimize string tagling or trapping weeds. These designs are probably not energy efficient, but at least you won't have to worry about the propeller getting stuck.
You should do a checklist for launching the boat so you never ever again forget the drain plug ^^
I was thinking red tape over the ignition or similar...I've been in a boat in the middle of the bay, when I realized it was rapidly flooding, had to use the power to get a across to the marina lol.
Those low slow-mo shots look epic! It is an amazingly small boat for wakeboarding behind and it seems like a very utilitarian boat overall.
I'm hesitant to get too close cuz it's an autonomous boat, I feel like i just need to let it do its thing.
You know, keep my distance.
"I don't want to be a helicopter parent" 😂😂😂
In yachting you have propcutters for if you get a line caught in the prop. Maybe a possibility for the seaweed?
nice bit of aquatic R&D there! Float switch for the bilge pump might work better?
For these autonomous boat projects, I wonder how a paddle wheel might fair. There would definitely be a large loss of efficiency compared to a prop, but with hopefully less trouble from seaweed you might see an overall performance boost. Seaweed could still get caught but would be more likely to fall free since the point of rotation is outside the water, and a comb could be made to grab hanging seaweed as the paddle left the water if rotation is fast enough. No clue if the overall performance would be better or worse but might be worth at least investigating. Also, would be interesting to combine such an old propulsion method with the modern aspects of being electrically/solar driven and autonomous.
I'd go with a side wheel design myself in this case. Driving two (or more) side paddle wheels would be less complicated than a stern-wheel (unless you mount the electric motor outside the hull). Differential steering would make a lot of sense for a "small" autonomous rather than hull penetrations for the rudders.
I think you should scale the boat up to something about the size of your Boston whaler. Maybe identical canoes or kayaks with a frame to spread them about 4 or 5 feet apart you could use a small gas powered motor for an adventure like this until you could work out an electric motor and battery set up. It would be light in the water and very stable. Might need to add a keel or skag for better tracking especially with side winds and currents. It would be large enough to be avoided by most craft. You could also work on self correction like the self driving cars it make it truly autonomous.
I'd check that bike fuel pump to make sure it 1. doesn't ignite the fuel in the VST and 2. make sure it is creating the correct fuel pressure for that motor.
Hey man, been noticing the improved camera equipment and shooting techniques. Really stepping up your game in the production department recently, and it shows!
okay so there seems to be some confusion on what "plaining" is , it is not when the stern wash separates from the transom , it is when the boat lifts onto the surface of the water or ever so slightly below it , the boat will give a very distinctive feeling when it does this , the front will go from pointing upwards to leveling off once the boat has reached enough speed to overcome the drag of the water against the hull , plaining doesnt usually happen until around 12mph
You should talk to Plasma Channel, he's working on a Solid State drive for boats, with no moving parts, so it'd survive the seaweed.
If those relais are electromechanical they almost certainly have been overdrawing current. If there is no back emf diode it could also fry the pin. But what i've seen on data sheets some solid state relais also have significant current draw and those tiny cheap regulators really can't handle much.
Yeah, I'm really surprised it fried the voltage regulator before it fried the Arduino (of course, it's possible the Arduino failed short first and then the voltage regulator)
Conformal coat the arduino's and boards with clear nail polish...just paint a few layers over it to protect them from moisture/corrosion
Also...run marvels mystery oil in the gasoline and put some MotorKote in the oil and the lower gear section for hyper lubrication and help prevent water damage
Very cool! Keep em coming!!!!
7:33 - If you think that looks amazing (it does), keep in mind that the Freefly Ember is $18,000...yea, EIGHTEEN GRAND and that's body only. No lens, etc. 😳
You all mark my words, I will make a rc boat that will go across the UK
Thanks for the inspiration
I laughed way to hard at the helicopter parent statement. Awesome video, i always love any autonomous long range project.
I love watching autonomous projects. My favourite one was the banana slug because I really liked the single hull design.
The projects you have created are so impressive. There is a lot of R/C stuff but the quality of your creations are just Insane! The mix of your knowledge/tech abilities/engineering abilities & just overall creativity is just mind blowing to see the things you end up creating & the quality they are capable of performing at, is just mind blowing. The way you've made crafts that run off of such efficient power or solar power & combined with autonomous traversal is just crazy stuff. I love your channel dude. Always great content. (I hope to see more underwater ROV projects in the future. They are fascinating)
24:40 love this shot, small boat in a big world
Did you add flyback diodes accross the relay? Even if the uC can handle the voltage and current needed to activate the relay, an inductive load like that will produce a large flyback voltage when you shut it off, all that stored magnetic energy needs to go somewhere and if you dont give it a path like a diode it will just keep upping the voltage until it shorts something out.
I'm digging the tohatsu motor and the repair docu.
We're there flyback diodes on the Relais formthe bildge Pump ?maybe the inductive pulse when turning the coils of fried the arduinos. It's pretty suspicious that they both failed in the same way
I love that the correct term is 'come- along' and that you used it in perfect context. Kudos!
9:44 That William Osman hoodie is even more succulent.
Dude these waypoint missions wind up such an adventure. I really enjoy all your content.
Meat torpedoes is a fantastically apt description.
@ 15:41 how’d you mount the RFD modem directly to the USB port like that?
You need to add a flyback diode to that relay circuit
Is it possible to mount a rotating knife before the prop to cut up any sewed? Another thought is to add a depth sensor to the boat and letting it run in a scanning pattern on the lake and then use those measurements to see what can be found on the bottom of the lake? The episode after that is called treasure hunting.
When thinking about boats hulls that work under low displacement you should look into a rowboat with a “shallop” or “double shallop”design. They have sweeping lines that come down to a V shaped bottom. They work amazing at low speeds and are commonly used as sailing dhingys. I’ve seen them be incredibly stable even at low speeds like 2 or 3 knots. An electric motor on one would work amazingly as they do so well at low speeds
For alternative propulsion, you can combine both wind and water :
For wind, there is the classic sail, but there is also the amazing Kite, which could make a great project, a self launching and recovering Kite, in fact, you could even generate electricity with Kite.
There are the :
*Pulled by wind then retrieve through gliding.
*Pulled by wind then retrieve through flag position.
*Figure eight.
*Spin on itself.
Ways of making electricity from a Kite, all pull the craft while unwinding the cables if it has enough resistance and both the figure eight and spin method allow to still get propulsion during retrieval, but they are harder to control, while the gliding method (mostly with a self/neutral stabilized sail) is the easiest to control with simple electronic.
As for the water propulsion, you can combine multiple types, but some are almost seaweed proof, like the FIN'X or the more typical undulating fin solution, which isn't that hard to make with as it work with a single crackshaft, as here you only need to control longitudinal thrust, unlike all those submersibles.
One thing I thought about would be to make a Trimaran hull design, but with the side hull on hinges with a simple breaking/locking mechanism, they would use the wave movements to generate electricity, the same way a "sea snake generator" do works, except it would serve both as a "suspension" to absorb waves impacts and generator.
A full bridge rectifier would allow any movement direction to always produce the same polarity, with a simple angle limiter and dampener, it could probably work well.
As for the water problem, you could have two hulls, one inside the other, the pump intake and water detector (which could be homemade in 316 stainless steel or other corrosion resistant conductors as a series of close enough "pins" to detect non-salt water's conductivity) and a water pump type which can run dry, such as a peristaltic one which are not that hard to homemade, since the mechanism isn't touching the water, any small particles won't cause issues inside it, with a timer that enable it for multiple seconds after the water detector is triggered, so the movements of the boat won't make it "miss" the water.
And waterproof the electronic with a simple hot glue gun so only the wires and possibly radiators (as it may overheat inside that) are going through it, same for the "inner" hull, which can be totally sealed off using a lead that contain the same hot glue (so you don't have to engineer a perfect fit lit with joints), bonus if you include a "hatch" with all the connectors for recharging batteries or connecting microcontrollers.
For constant water level detection without corrosion you want a capacitive soil moisture sensor, they work with arduino. I think they might work pretty well even once coated with salt.
I use it for my automated watering system, in the bottom of my pots I have the sensors, and when they dry out below a certain percentage it tells the arduino to send more water through.
Its interesting how many people try to build electric boats out of planing hulls. Paddle wheels are good options for seaweed. As for the bulge pumps, float valve or just two stainless steel contacts an inch apart. That can switch the pumps directly, or a relay or just sense resistance change. Salt water will eat any of it so build it assuming that. Thick stainless will last a while.
the drag of the water really helps with the 3d printed parts when in rotation because they are being compressed instead of stretched by the g forces from spinning
Just a heads up, going slow and close to seal covered bouys, can be risky. A friend lost his boat when a 250kg bull that couldn't get space on the bouy, took the easy option and jumped on his boat flipping and sinking it. That also left them swimming out of a white shark feeding area in a panic
“This video has some ADHD” it’s gonna be a good video boys
On racing sailboats there is occaisionally an option for a weed-cutter keel or a rudder. Basically a knife edge that cuts through seaweed. A couple razor blades upstream of your prop will get the job done. I think I've even seen it on rc sailboats.
25:00
maybe razorbladed prop/shaft to mulch the seaweed
been a fan of the channel for a quite a few years now, good work sir I love the autonomous things you do and look forward to more, UK expat living in Spain
The barge at 15:29 is a timber barge that is pretty much permanently moored there.
I love the “Place where the aircraft carriers are”. Better known as Bremerton and Port Orchard the body of water is the Sinclair Inlet. I love sailing in that area but where the 3 channels meet the winds get all sorts of confused and it makes for an interesting sail.
I used to manage a fleet of 20 Whalers for a youth camp. We had one hull like yours. It was my favorite as the wet well could be plugged and it kept the main area dry.
I had one staff take that boat out after work to go fishing and he tossed the builge pump overboard and filled the wet well with sea water to keep bait fish alive. Creative but not the best for the motor that was being washed with the overflow.
Very cool project, and a good attempt! For a more robust liquid level sensor, and something that isn't susceptible to corrosion, perhaps a switch connected to a small float would be better? Like in a toilet tank, but with an electronic switch on the end of the float.
Have you considered using a paddle wheel? Maybe that would avoid the seaweed problems.
curious..
how about a set of swimming arms?
Oregon welded fishing boats use something called a stomp great over the jet pump intake. I wonder if you could 3-D print a similar device actuated by a servo? Great video thank you for sharing
Since seaweed most probably would cause higher amp draw, an automated motor reverse function for a few seconds could be enough to clear the propellers. Some propellers are also more weed protected than others. They are seen on Minn Kota trolling motors for instance.
Super fun - I took a lot of inspiration from your videos and made my own boat. Currently changing my own from inav with a standard analog vtx to ardupilot with openipc as the video control link.
For water level you should definitely use a ToF sensor. The Gagguino project uses one to monitor water tank height over I2C.
here before rctestflight creates a yacht in a couple of years, fully autonomous and solar-powered, it becomes known as the "drone hub" for all local pizza deliveries
1:38 cool view its look like starship in open space
How do you still live in Seattle I'd have fled a long time ago
"In this episode, Daniel discovers the real value of 'Marine Grade'..."
Could you add AIS data to your map so you can predict potential collisions?
For your water detection in the hulls you can use a reed switch attached to a rod with a lightweight puck that will float on the water. much simpler and robust than your water detection boards you have now.
To clear the seaweed, would an automated (or manually-triggered) routine to spin the props backward and forward rapidly a few times help maybe? Or maybe replacing those side prop guards that are meant to keep seaweed out with servo-actuated arms that stick out wider and can be pulled in occasionally to let any collected seaweed fall away?
Those water sensors corrode because powering them makes them act like a battery. They last much longer if you only switch the power on for a moment every now and then.
The other way to detect water is to run the pump and measure how much power it draws. It takes more power to pump water than air.
I just love that when he talks or does anything else there is no music playing. And when it is it's not when he talks I love that.❤😅
I truly enjoy the combination of science and adventure that your episodes display, thanks ☮️
You cruised right past Keyport Naval Base! You should look that place up, while they mostly work on maintaining torpedo stockpiles, there is a development squadron that launched 30ft autonomous submarines that - like your boat - robotically navigate around Puget Sound! The model I used see there was the LTV-38, which was a large-displacement unmanned undersea vehicle (LDUUV)
Could you thread or put a groove in the prop shaft that would try and push the water down and out of the shaft tube back to the prop? It could help keep water out if that is where the water is coming in.
Could you make an autonomous RC Sailboat? Would it be possible? 🤔
I wonder if you could install a sharp blade close to the propeller shaft that would cause the seaweed to rip itself apart when it finds its way around the shaft or even using a fire wire brush along the top of the shaft. I've always wondered if that would be something that would aid the boat in clearing such obstructions, i usually seem to get the same thing happening to my little scale boat after i've taken it out.
I did find putting a small moulded shim shroud from the hull to the back end of the prop can aid in the prevention of clogging, though not sure what it would do to the efficiency of the boat.
Regarding buoys… “Red, Right, Returning” may help sometime in your new boating adventures. Keep the red buoys on your right when returning inland. 👍🏼
solar boat needs floating solar panel. Pontoons or box tank or something. A three point tether set up can allow a tandem that turns in line with the boat. I have pulled kayaks with my ekayak this way and it works. it would work better with wider boats.
Have you ever tried razor blades to keep the propellers weed free? I think I remember someone making prop guards out of razor blades.
But that only gets rid of the problem of seaweed getting _into_ the propeller _in one piece._ It could still get cut in half with both halves ending up in the propeller.
And once seaweed is on the propeller, an upstream guard won't do _anything._ For that part of the problem you'd need to position a blade where the seaweed would trail off of the propeller.
Or just make the propeller have the cone shape of those prop guards at 25:36.
That might still need the blade where long seaweed is trailing off of the propeller, since any long trails would quickly get twisted into a braid, which pulls them towards the center.
Maybe a hobbie catamaran sailboat would be more appropriate for solar sailing.
You could mount the solar panels above you so you can get shade and power without the chance of the panels dipping into the water.
for the bilge pumps, maybe add a pump stage that runs off of the drive motors? just works passively all the time.
Your videos are always a treat. Wish to some day to be able to design the same kind of stuff.
Tip on those liquid level sensors. If you use a digital pin from the Arduino to power them only when taking a reading (say, 5 milliseconds on to take a reading, every 5 or 10 minutes), corrosion will still happen but much much slower because power isn't flowing through them all the time. Couldn't tell if you had them set up in that way but if not and if you use them again I'd recommend trying this approach. They don't pull very much power at all and they can easily be powered by the max 40mA that can be supplied by a digital Arduino Nano pin pulled high.
"Dude, you should snort some of that and see what happens." 😂 Wouldn't be nearly as funny if I hadn't been thinking "he ought to snort some of that 💩." 😂🤣😂
Have you ever considered using a pump drive instead of a prop to avoid the seaweed problem? I've been working on a 3d printed autonomous boat (inspired by your videos) and I used bilge pumps for both the drive and steering. It works great in bathtub testing, not ready to hit the big water yet though!
🎯 Key Takeaways for quick navigation:
00:00 🚤 *The video is sponsored by Factor; the creator attempts the longest autonomous boat mission around Bainbridge Island.*
01:26 ⛵ *The Boston Whaler, previously an electric boat, is converted back to a gas motor for efficiency, becoming a support vessel for monitoring the autonomous drone boat.*
03:47 🚤 *Testing electric motors on the Boston Whaler; achieves plane with 18s batteries, exploring the advantages and challenges of electric propulsion.*
06:52 🛶 *Successful conversion of the Boston Whaler to a gas-powered boat using a 50 horsepower outboard motor.*
09:00 🍽️ *Brief sponsor segment for Factor meals, promoting convenient, healthy, and pre-prepared meal options.*
10:05 🚤 *Preparing the autonomous boat for an extended mission by adding extra batteries and addressing potential seaweed interference.*
11:55 📡 *Monitoring the autonomous boat from the Boston Whaler due to challenges like commercial boat traffic and seaweed interference.*
16:41 🌫️ *The autonomous boat encounters challenges such as low tide, fog, and potential collisions with other vessels during its mission.*
20:31 🌊 *Seaweed in the propellers causes issues, prompting the operator to clear them and observe improved speed and performance.*
20:44 🚤 *The drone boat faces challenges with seaweed, affecting its efficiency during autonomous missions.*
21:25 🌊 *Solar panels were removed; without seaweed, the boat has enough battery power for all-day operation.*
22:14 🚁 *The user sends the drone up to investigate a Y-shaped channel, looking for whirlpools, eddy currents, and dolphins.*
23:16 🚢 *The boat navigates a challenging channel with ferry traffic, considering manual override due to fast currents.*
24:47 🔋 *The boat experiences battery issues, leading to a premature end of the mission; lithium iron phosphate batteries are mentioned.*
25:30 ⚙️ *Seaweed vulnerability prompts the need for a new propulsion method; the next video will explore potential solutions.*
26:23 💧 *The boat sustains water damage; circuit boards fried, but battery cells remain intact for future projects.*
27:19 🔥 *Water damage leads to burnt components, specifically a voltage regulator on the Arduino, affecting the boat's electronics.*
Made with HARPA AI
I suggest to move the fuel tank forward of the console for better balance. Even mounted under your forward wooden bench would help loads with the stern water problems.
Amazing work as always, keep it up!
I love your autonomous boat videos so much! They're by far my favorite. Can't wait to see what you try to fix the seaweed problem!
about the water fill sensors, I tried to use them for a project (fill sensor for a catheter bag) and they did have corrosion issues. I looked into photoelectric water sensors (which are probably the better option for your project) but they were a bit more expensive
I'd be interested in seeing you tackle a long range project using LoRa modules
These videos never fail to entertain. Thanks for doing what you do.
I think prop fouling could be detected if you have current feedback from your motor drives. I love watching all the engineering that goes into these boats!
Wow, first time I have seen your Dad make an appearance. He must be proud.
Hi, a long time ago I sent you a message on Instagram about hubless props. Apparently they're a lot less prone to seaweed and other stuff. You only have to do a cycle backwards every once in a while. And you have to incorporate it in the hull otherwise you still have surfaces where seaweed could hang onto.
Sorry for my bad English btw.
Btw you should use capacitive water level sensors so they do not corode.
use a float on a lever like toilets do for the water level sensor. I'm sure a tiny one will still work. You can make that out of plastic so it's not gonna corrode when submerged and stop working
Would blades at the base of the spinning prop do anything to help with the seaweed problem? I've seen it done with larger boats and wonder if it will work the same for smaller ones like this.