Argh, those poor propellers, mangled by saws. I Was hoping you'd put a cover over the nut, to keep the trailing edge shape, as you'll lose a measurable amount of performance with just the bare nut.
@@Neberheim That's because there is exhaust coming out of them. There is no exhaust coming off the back of these propellers, thus it would help to have a cone. It was the first thing I saw that they could improve.
Its obvious that you two are true games & programmers: changing the ESC startup sound into megalovania 🤣. I'm proud of you guys. Also what other upgrades/ mods might be in the pipeline? Really looking forward to them 😁
Thanks haha. Right now we're working on a CPS 6 (6DOF) design, which means that it moves in every direction as opposed to CPS 5 which doesn't move side to side. Then, we'll be upgrading that one 😄
@@glenndhooge6787 Yes, the course would be updated. But don't take it for certain just yet, we might for example do a simpler CPS version first. We've just starting working on it :)
You guys really need to build a wireless or bluetooth remote programming setup, so you can re-program the ESC's externally instead of having to open up the case every time
Hey, I might be able to help. Do you know the Kv of the motors you used? This situation definitely calls for the lowest KV motor you can find and at least a 4S battery. It will be far more efficient because you will be drawing far less amperage as well so everything will run cooler. You will sacrifice some runtime potentially by having to use a larger battery but due to the overall efficiency of the low KV and higher s rating it might actually run for a longer period of time. Anyway I'm about to buy your course and build one myself! Awesome work
Super job guys, and fun video. That's a pretty small ESC for such a motor, I would have expected a 50-60amp with a thick heatsink. I think you should test this again in a larger pool and you'll probably get over 4m/s. I can't help but feel that you need to make a proper fan duct to get that speed. As for the leatherback turtle, I think there's probably more to that speed. Like it needs to be in a current.
The heat actually dissipates really fast without a heatsink. I think for anything more powerful I'd be just easier to somehow put ESCs outside the electronics pipe, in the water. A motor hub/duct would definitely improve the speed, but also the props weren't centered perfectly. You're right, leatherback turtles are suspicious, we need to race one. It needs some turtle-proofing though, so that neither the turtle or the drone gets hurt.
@@CPSdrone I wonder if it is worth considering a prop with a built in duct housing. Like the ring around the prop. That does add weight, but not as much for marine props. It would hopefully reduce turbulence and cavitation.
Print it in 95A TPU maybe with at least 1cm walls (on the areas that will crash)? You can solvent weld and smooth TPU with THF. And you could leave room to slide in some sheets of polycarbonate. Then it would be hella tougher. Nice work!
Really beautiful video keep going! if you want to increase speed you need to improve hydrodynamics. Any protrusion (especially if of a small surface area) creates a large viscous drag (it is related to the Reynol number).Try to reduce the small surfaces and improve the hydrodynamics of the engines by adding cones.
Thank a lot for the tips! That's exactly what we want to do if we ever make it even faster - start with a smooth teardrop shape outer shell. But that will require way more changes in the design.
I’ve always been curious about how one would go about waterproofing stuff for underwater projects. I was also surprised to see that the motors work submerged. Can someone explain how or what parts need to be waterproof?
You should use a low KV motor, maybe 350 kv not your 1000kv. Overloading the 1000kv motor will waste a lot of energy. You probably need a smaller prop to allow motor to turn faster. You should have a meter to measure performance of motor, current, power etc. so you can optimize the setup. Crazy cut and try method may end up with burned parts.
Theres someone on RUclips that makes a fully 3d printed "jet boat" using a motor like a jetski, sucking in water and shooting it out the back even better achieving 13ftlbs of thrust! Once you find it and see how small it is just 13 will be understood why its so fast.
I know for a fact you guys are not going to see this because I'm late to the party. But there was a new design that are being implemented by the military we have dual spinning blades spinning opposite directions of each other. One behind the other in order to make more speed would you ever consider tha
saludos desde Colombia me encanta su proyecto ,,ya pedí todo los materiales por aliexpres ...pregunta en su curso ,,,hay la posibilidad de que programen mi computador portátil a distancia ya que no se programar ...
So the solution for speed was a better propeller and a whole lot of brute force, i kinda feel like the original design could be even faster than this purely because of the smaller profile if you just added this propeller in place of the original and turned the power to eleven. This one definitely turns better tho because of that extra leverage
seeing what speeds you reached with what kind of electronics actually makes me respect some old toy rc boat I have more. it was a old rc boat that was mostly a rc speedboat, but also could go underwater and stay just below the surface. that old thing had a basic brushed motor, based on how long it could work on a single battery it would use around 30 to 100 W in total for the entire boat. the motor just had a long axis on it which went trough a insane amount of grease just like vaseline to make it water tight, then at the end there was a small screw around 2 cm to 4 cm diameter or such. the speed on the water was 12km/h. underwater it would go at around half that speed, this was also largely due to the diving actually working by just flipping a rudder to steer a part of the motors force to force down. however while it also sends out quite some water it doesn't seem as extreme and powerfull as the motors you used, which is weird since according to that it should be slower instead of faster, but perhaps the streamlining of the boat. or perhaps the rpm might be part of it, or the general efficiency of the propellor and such matched to the speed or other thigns to reduce turbulence in the water since that boat seems to have a lot less turbulence than the motors you use in this video, the amount of water seems less extreme but much more in a straight beam. it would be interesting to see what happens. that boat is broken now, the motor and propellor still work however. but in my case I wanna try to figure out some kind of small energy efficient motors to use to strap on braces on the arm or on a surfboard or such, but probably more on something like arm braces so it is kind of like a submarine but then you are the submarine yourself, that would probably feel great, kind of like floating since you are as good as weightless yet still would move through the watter as if you are gliding.
Мне кажется в воде нужен формирователь, как у вас в предыдущей моделе, в воде вес мене важен. А вот энергия когда сформирована в тоннель мне кажется будет эффективнее. Ребята успехов, жаль у нас так интересно не было)
So we have this Autonomous Underwater Club at our College (MTS AUV ZHCET) , and we are struggling to build this kind of stuff. How you waterproofed the motors?
You guys are freaking awesome!!! My grandson and I love this stuff. He’s 11 and I’m 65. We might build one for his next science project. We have a question- why. are you guys calling it a drone when it is an ROV? Thank you
If I've understood correctly, it is not in direct contact with water but inside that electronic tunnel. Make it waterproof by pouring epoxy on it, then take it out of that tunnel and take profit from that free best watercooling you will ever get. One easy fixe would be a bigger esc, as there are others able to handle 80A without overheating.
I have such an idea for a safety system against losing the drone due to entanglement of the cable. Hardware - Cable cutter, standard co2 cartridge connected to an inflatable balloon, e.g. made of latex, something like a condom. Soft is a simple instruction. If the drone has tangled the cable under water and it is impossible to get it out, the cable is cut and the balloon filled with co2 floats to the surface. Cutting the cable and opening the co2 tank requires strength, maybe a mechanism based on the action of a screw.
I mean, it looked to me like your engine doesn’t have enough torque. It can spin very fast, but it doesn’t need to spin fast, it needs to move heavy water. You’re putting more power into the engine, but that’s basically just cheating.. You’re forcing more power into it rather than fixing the actual engine. It’s like, riding a bike but you have it on a high gear, but you need it in a low gear.
I wonder if this could retrieve the top that flew off my rc boat it’s a 48inch hydro plane from proboat so I can’t find them anymore and it sunk in a second
Only watched a few of your videos sofar. But I'm super excited to join the course as fast as I can afford it! :D Until then I'll continue watching these videos. :)
How about an underwater impeller water jet propulsion? It would efficiently suck water in and force it out the back in a direct stream. Underwater jet propulsion seams more legitimate at achieving the speeds your looking for. Then you can take in water at 4 points of the drone and force it out the back. Props seem over done
And odd rule.of hydrodynamics is the AFT end of a object in the water is almost more important for Speed then the entry and. If you look at submarine they all have tapered hubs over the afternoon to the propellers, and the most streamline parts of the boats are the Afghans of the control plane
Those motors are way too high RPM for water use. You'd either need to gear them or use different motors. Also you're losing thrust by no longer having ducted props.
very good and interesting to see some people on youtube video's who make their own electronic things but then that it actually works properly instead of being mostly waste, and where high power expensive parts are actually the high power expensive pars a semi-average person would be capable of getting instead of that other half where of youtubers where for example only the esc already costs close to €1000 and the motors something like €800. there are some great optimizations still however, but will talk about that in my other comment.
I really enjoy your video, I think it might be better to programe different speed level might be fun do you plan to switch to wireless communication in the future? I Can't wait for your next video !
I know all modern propeller designs mitigate cavitation, but Id like to see a propeller design that incorporates the effects of super cavitation to help drive the propeller and form a caveatting bubble around the propeller. Maybe multiple small very very small propellers is the answer.
18:35 well you might as well club it to death since its inhumane to let something suffer 😂
Lmao, now I know your true intentions. We'll fix it for future missions! Until then, it can suffer in silence.
Oh no, yt doesn't show your comment in the top ones because it's so violent I suppose lol
@@CPSdrone good ol youtube being dumb
@@CPSdrone ZAUWAZYLEM ZE WY W POLSCE
You should try toridal propellers and see how much faster and longer the battery runs
Argh, those poor propellers, mangled by saws. I Was hoping you'd put a cover over the nut, to keep the trailing edge shape, as you'll lose a measurable amount of performance with just the bare nut.
We might try that. It would be interesting to see how much that one factor will improve the speed.
I kind of doubt it. Sharrow propellers are probably the highest performance outboard motor propellers they have the same open trailing edge design
@@Neberheim That's because there is exhaust coming out of them. There is no exhaust coming off the back of these propellers, thus it would help to have a cone. It was the first thing I saw that they could improve.
Love how modular it is. It's great to see how much fun you are having creating and testing it.
Dopiero po scenie z uniwerku ogarnąłem że jesteście z Polszy xD
Pozdro i gratuluje zajebistego kanału!
No, mnie też zaskoczyło gdy usłyszałem język polski, a później zobaczyłem polskie napisy na basenie.
Its obvious that you two are true games & programmers: changing the ESC startup sound into megalovania 🤣. I'm proud of you guys.
Also what other upgrades/ mods might be in the pipeline? Really looking forward to them 😁
Thanks haha. Right now we're working on a CPS 6 (6DOF) design, which means that it moves in every direction as opposed to CPS 5 which doesn't move side to side. Then, we'll be upgrading that one 😄
@@CPSdrone awsome to hear that. Sound pretty cool. But what would that mean for the course? Will CPS6 be included in the CPS5 course?
@@glenndhooge6787 Yes, the course would be updated. But don't take it for certain just yet, we might for example do a simpler CPS version first. We've just starting working on it :)
You guys really need to build a wireless or bluetooth remote programming setup, so you can re-program the ESC's externally instead of having to open up the case every time
Hey, I might be able to help. Do you know the Kv of the motors you used? This situation definitely calls for the lowest KV motor you can find and at least a 4S battery. It will be far more efficient because you will be drawing far less amperage as well so everything will run cooler. You will sacrifice some runtime potentially by having to use a larger battery but due to the overall efficiency of the low KV and higher s rating it might actually run for a longer period of time. Anyway I'm about to buy your course and build one myself! Awesome work
Super job guys, and fun video. That's a pretty small ESC for such a motor, I would have expected a 50-60amp with a thick heatsink. I think you should test this again in a larger pool and you'll probably get over 4m/s. I can't help but feel that you need to make a proper fan duct to get that speed. As for the leatherback turtle, I think there's probably more to that speed. Like it needs to be in a current.
The heat actually dissipates really fast without a heatsink. I think for anything more powerful I'd be just easier to somehow put ESCs outside the electronics pipe, in the water.
A motor hub/duct would definitely improve the speed, but also the props weren't centered perfectly.
You're right, leatherback turtles are suspicious, we need to race one. It needs some turtle-proofing though, so that neither the turtle or the drone gets hurt.
@@CPSdrone I wonder if it is worth considering a prop with a built in duct housing. Like the ring around the prop. That does add weight, but not as much for marine props. It would hopefully reduce turbulence and cavitation.
Why y’all gotta click bait the propellers tho I wanted to see the ones in the thumbnail
Print it in 95A TPU maybe with at least 1cm walls (on the areas that will crash)? You can solvent weld and smooth TPU with THF. And you could leave room to slide in some sheets of polycarbonate. Then it would be hella tougher. Nice work!
polska górą!
fajne to macie chłopaki i ta megalovania xD
Zajebiście się to ogląda !
as soon as he played sans theme on the motor I subscribed. Love undertale.
Scientific approach - 0 %
Excitement - 10%
Idiocy - 90%
Glad you liked it!
@@CPSdrone Idiocy is the most popular and favorite genre on RUclips. How can you miss this? :)
A question... How can this engines work under water without watertight protection... No short circuit?
Gdzie kupiliście te silniki? @CPSdrone
All I ask is make more megalomania references in the future! :3
Super panowie !👌
Dzięki!
@@CPSdrone Studiujecie w Gdańsku czy gdzie? Czy sami z pasji?
Motor case exposed to waster causing drag
Green sea turtles are actually very fast swimmers, recorded up to 15 m/s but only in bursts as they need to breath air.
Really beautiful video keep going! if you want to increase speed you need to improve hydrodynamics. Any protrusion (especially if of a small surface area) creates a large viscous drag (it is related to the Reynol number).Try to reduce the small surfaces and improve the hydrodynamics of the engines by adding cones.
Thank a lot for the tips! That's exactly what we want to do if we ever make it even faster - start with a smooth teardrop shape outer shell. But that will require way more changes in the design.
16:49 подождите, мне послышалось, или он сказал "так-так-так"? Это даже подходит по смыслу к "that's right".
18:24
И здесь))
I’ve always been curious about how one would go about waterproofing stuff for underwater projects. I was also surprised to see that the motors work submerged. Can someone explain how or what parts need to be waterproof?
Underwater turtles are actually pretty fast but ok.
You should use a low KV motor, maybe 350 kv not your 1000kv. Overloading the 1000kv motor will waste a lot of energy. You probably need a smaller prop to allow motor to turn faster. You should have a meter to measure performance of motor, current, power etc. so you can optimize the setup. Crazy cut and try method may end up with burned parts.
Ale że Polacy takie coś robią... Gratulacje
Theres someone on RUclips that makes a fully 3d printed "jet boat" using a motor like a jetski, sucking in water and shooting it out the back even better achieving 13ftlbs of thrust! Once you find it and see how small it is just 13 will be understood why its so fast.
I know for a fact you guys are not going to see this because I'm late to the party. But there was a new design that are being implemented by the military we have dual spinning blades spinning opposite directions of each other. One behind the other in order to make more speed would you ever consider tha
Really cool!! I was wondering how you managed to avoid corrosion of the motors??
It looks like you're using 18650 cells. You'll need a high C rated lipo that can handle the high amp draw of that setup.
Hi, is it possible if you can do a video showing how to make the draw in Solidworks?
saludos desde Colombia me encanta su proyecto ,,ya pedí todo los materiales por aliexpres ...pregunta en su curso ,,,hay la posibilidad de que programen mi computador portátil a distancia ya que no se programar ...
Twoje filmy są świetne. Zastanawiałem się, czy mógłbyś zbudować ogromny statek towarowy RC
a super sonic submarine is possible, good luck w/ that one.
great job guys, have you consider the toroidal propelers? and you can print them...
So the solution for speed was a better propeller and a whole lot of brute force, i kinda feel like the original design could be even faster than this purely because of the smaller profile if you just added this propeller in place of the original and turned the power to eleven. This one definitely turns better tho because of that extra leverage
Correct, they didn’t fix the issue and make a better design, they just added more power…
seeing what speeds you reached with what kind of electronics actually makes me respect some old toy rc boat I have more.
it was a old rc boat that was mostly a rc speedboat, but also could go underwater and stay just below the surface.
that old thing had a basic brushed motor, based on how long it could work on a single battery it would use around 30 to 100 W in total for the entire boat.
the motor just had a long axis on it which went trough a insane amount of grease just like vaseline to make it water tight, then at the end there was a small screw around 2 cm to 4 cm diameter or such.
the speed on the water was 12km/h. underwater it would go at around half that speed, this was also largely due to the diving actually working by just flipping a rudder to steer a part of the motors force to force down.
however while it also sends out quite some water it doesn't seem as extreme and powerfull as the motors you used, which is weird since according to that it should be slower instead of faster, but perhaps the streamlining of the boat. or perhaps the rpm might be part of it, or the general efficiency of the propellor and such matched to the speed or other thigns to reduce turbulence in the water since that boat seems to have a lot less turbulence than the motors you use in this video, the amount of water seems less extreme but much more in a straight beam.
it would be interesting to see what happens. that boat is broken now, the motor and propellor still work however.
but in my case I wanna try to figure out some kind of small energy efficient motors to use to strap on braces on the arm or on a surfboard or such, but probably more on something like arm braces so it is kind of like a submarine but then you are the submarine yourself, that would probably feel great, kind of like floating since you are as good as weightless yet still would move through the watter as if you are gliding.
Can y'all explain how you're water proofing these quad copter motors
Hi @CPSdrone
Love the project! 😻
Cheers
Evel-Knievel ✌
Thank you so much!
Hi
Wich motor do U use for forward drive (Them in/under water?
Thanks
Torben 🇩🇰
12:16 oh, he has the same servo controller as I do...
12:21 oh, he snips open anti-static bags the same as I do too...
Мне кажется в воде нужен формирователь, как у вас в предыдущей моделе, в воде вес мене важен. А вот энергия когда сформирована в тоннель мне кажется будет эффективнее. Ребята успехов, жаль у нас так интересно не было)
Did you know Caeleb Dressel was faster than Pichael Phelps in terms of top speed in freestyle ?
you need to smoooth the surface. focuse on 40% of the front of the drone. it need to beee smooooth 1200 grid minimum then it will be fast
It's the tether! Making it difficult to to control when below the surface
How many other people thought of the Little Einstein theme after seeing the finished product
hey guys would you make one for me since i dont have a 3d printer
thanks so much
Too bad you can't control/program it by ultrasonic speakers in the water
The motor is in direct contact with water. Isn't this creating Any Problem?
next step is to design the Espadon from "blake and mortimer" comics
from the beginning I said there no way a turtle is that slow in the water.. I've seen some just jet at high speed
Covered soft skin is a good idia for protecting drone. Also waterproof camera for rescue mission.
Yeah, some bumpers would help!
Does the shape of it remind anybody of buzz light years space shit
very cool project, I think if you put a mini speedboat turbine it could be fine faster
Make a dual propeller like the ones in the mercury v12 motors 😂
Bro make a 3d print toroidal propeller for Walter IS the Vips on the boats
EJ EJ EJ 5:14 JEST PO POLSKU TAK WIEN MAM PYTANIE Z JAKIEGO KRAJU POCHODZISZ /
WHERE ARE YOU FROM
Why not put I all 4 motors😅😅 maby not faster but a hell of alot more power
So we have this Autonomous Underwater Club at our College (MTS AUV ZHCET) , and we are struggling to build this kind of stuff. How you waterproofed the motors?
Hello. Fine job. You are probe a discoidal submarine drone?
Can I send you the link for the replaced engine?
Can I send you the link for the replaced engine?
Can I send you the link for the replaced engine?
TITAN v2
Panowie pełen szacun, sub i łapka up
Źle to brzmi gdy sie włącza, nie? Polska gurom
if you kept old motors and just added 2 more would actually fly
If you meed too you could add heat cynics to help the water cool the drone off
Loved it! Great smart kids! Super entertaining
You guys are freaking awesome!!! My grandson and I love this stuff. He’s 11 and I’m 65. We might build one for his next science project. We have a question- why. are you guys calling it a drone when it is an ROV? Thank you
Thanks a lot! You can also call it an "underwater drone", so we call it a "drone" sometimes
No way they made megalovania the startup sound
マンボウみたい
マンボウ色に塗装したら偽装ドローンになりそう
Such amazing efforts guys, but i would love to see more solution on the cooling for ESC
If I've understood correctly, it is not in direct contact with water but inside that electronic tunnel.
Make it waterproof by pouring epoxy on it, then take it out of that tunnel and take profit from that free best watercooling you will ever get.
One easy fixe would be a bigger esc, as there are others able to handle 80A without overheating.
Awesome!
5:21 I hear Poland!
Graf byłby dumny z tego dźwięku
Congrats guys that video was so entertaining ! Keep it coming and you're gonna succeed a lot :)
13:53 Gotta love Oscar Liang's website.
"так так так так так так" you're cool guys. Where are you study ?
i have the same powerbank that you can see at 12:34 lmao
Why does that look like stitch's police cruiser
Lol I could make a boat s that can go at 5m a second
I have such an idea for a safety system against losing the drone due to entanglement of the cable. Hardware - Cable cutter, standard co2 cartridge connected to an inflatable balloon, e.g. made of latex, something like a condom. Soft is a simple instruction. If the drone has tangled the cable under water and it is impossible to get it out, the cable is cut and the balloon filled with co2 floats to the surface. Cutting the cable and opening the co2 tank requires strength, maybe a mechanism based on the action of a screw.
I mean, it looked to me like your engine doesn’t have enough torque. It can spin very fast, but it doesn’t need to spin fast, it needs to move heavy water. You’re putting more power into the engine, but that’s basically just cheating.. You’re forcing more power into it rather than fixing the actual engine. It’s like, riding a bike but you have it on a high gear, but you need it in a low gear.
"It swims like a dying horse" 😅
Hello! What degree are u studying?
Smoothing the body of the drone would improvebits performance significantly more, also giving it a spear head tip alike to break the water
I wonder if this could retrieve the top that flew off my rc boat it’s a 48inch hydro plane from proboat so I can’t find them anymore and it sunk in a second
Only watched a few of your videos sofar. But I'm super excited to join the course as fast as I can afford it! :D
Until then I'll continue watching these videos. :)
Hmmm. Dodaj C4 i będzie torpeda.
How about an underwater impeller water jet propulsion? It would efficiently suck water in and force it out the back in a direct stream. Underwater jet propulsion seams more legitimate at achieving the speeds your looking for. Then you can take in water at 4 points of the drone and force it out the back. Props seem over done
Very cool project. But what are the material costs (ballpark) for building cps or cps s? I couldn't find that on the website.
And odd rule.of hydrodynamics is the AFT end of a object in the water is almost more important for Speed then the entry and. If you look at submarine they all have tapered hubs over the afternoon to the propellers, and the most streamline parts of the boats are the Afghans of the control plane
Those motors are way too high RPM for water use. You'd either need to gear them or use different motors. Also you're losing thrust by no longer having ducted props.
Turtles are very fast, tortoises are very slow...
2.7 meters per second that's pretty fast
Sailfish are faster thought
czemu nagrywacie po angielsku
very good and interesting to see some people on youtube video's who make their own electronic things but then that it actually works properly instead of being mostly waste, and where high power expensive parts are actually the high power expensive pars a semi-average person would be capable of getting instead of that other half where of youtubers where for example only the esc already costs close to €1000 and the motors something like €800.
there are some great optimizations still however, but will talk about that in my other comment.
I really enjoy your video, I think it might be better to programe different speed level might be fun
do you plan to switch to wireless communication in the future? I
Can't wait for your next video !
If we made it big enough, could we go to the titanic ? Asking for a friend
they followed this video precisely. technically they made it
I know all modern propeller designs mitigate cavitation, but Id like to see a propeller design that incorporates the effects of super cavitation to help drive the propeller and form a caveatting bubble around the propeller.
Maybe multiple small very very small propellers is the answer.