3D Printed Hydrofoil Surfboard - Will it Work?
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- Опубликовано: 27 сен 2024
- A hydrofoil is an airplane-like wing structure under the water attached to a surfboard that generates lift. In this video I will mount an electric motor that will make it possible to lift out of the water and "fly" above the water.
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Music:
Anda sin Soledad - Cumbia Connection
Oceanic Adventure - Bonnie Grace
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I assume that the wings bend and a lot of lifiting power gets lost. Try to Analyse the under water situation by using a GoPro or such. Great video. Love to see part 2
Bump
That was my thought as well. Given how thin they are, when put under the load of a full person they probably just deform to the point that there is no lift
i thought so too
When I've seen commercial foils, they were VERY stiff - all solid CF and resin. I think the 3D print / wrap approach is not rigid enough Maybe 3d print a new one with room for a truss rod?
Or maybe good ideas from people that have created successful boards.
I just want to say that I love the humor laced throughout your builds as you run through the trial and error process.
The presenting and editing makes it such a joy to watch! Nice job Simon!
Chaotic Evil editing at it's finest
It so satisf.....
Great project ! Your main wing looks quite small, I do kitefoiling and the typical front wings are around 800cm2. Then the wingfoilers use bigger wings like 1000 to 1800cm2. I think you should try at least a 1000cm2 front wing with a 300cm2 rear wing for it to lift you over ;)
Love the creative ways of putting on the wetsuit. I've been following all the jet-boards with great interest. Hopefully I can make one of my own one day. As an old guy who is 65, I can relate to issues getting it up. You're young and will definitely get it up the next time. The idea of using 3-d printed parts as a shape to fiberglass over is brilliant and should be real useful.
🤣👍
What I like about this video is you present even the fails as a fabricator and designer myself I have come up with all kinds of ideas that in theory should work but it takes me forever to perfect and get them working the way they are intended so kudos to you for providing the video footage because people need to understand the amount of work it takes to get a CustomDesign working correctly
I really like your video style and how you show your mistakes and your trial and error, and you have great dedication.
Edit: Is it possible to put jets on and have water cooling run trough the foil in to the board?
Great work mate!
A couple of thoughts:
1. The lift created by the hydrofoil is proportional to the size of the wing and the angle of attack of the wing.
See if you can design a few different airfoil sizes and add a method to adjust the angle of attack and test them.
2. You may need to make the connection between the board and mast stronger. When the board is out of the water your entire weight will need to be supported by that joint.
Consider doing a test on land where you attach the mast to something solid and then stand on the board. If it doesn't break, you're good.
You probably could have gotten it to work but you have the battery components blocking you from standing over the foils. My suggestion, for simplicity, is to add a footstop behind the battery and controller compartment. That way you can balance your weight over the foil. I don't think you have quite enough power to stand in front of the foil at this point. Maybe not even standing over it but worth a shot. Good luck. Can't wait to see your next steps and future projects.
That’s what I was thinking. What would happen if he left the foil as in bud shifted the weight back. One foot behind the electronics box and one in front.
Correct. If his body weight is too far forward on the board, the foil will never lift him.
Yup you need your weight centered over the lifting wing. Can't believe he didn't consider that fact when building this.
@@capodad2u has to be a lil in front of quarter chord to maintain stability, But at his speeds the wing is too small, he needs more power
Most commonly the center of mass should be directly above the front wing. Now the back foot is roughly above the front wing. It really seems that there is some lift coming from the foil. Just try to stand like Charles suggested and the board/foil should rise from the water. If not, then you check the angle/size of your front wing. Nice work, keep going!
great progress on this, looking forward to the next iterations 😎
I tried basically the same project last year except I thought the board building from xps would be too time consuming so I just bought a cheap board from my local decathlon. Also did some research and found Ray Velinga' s videos explaining the hydrofoil calculations. he also has a book its a great read, it would help you a lot.
One other difference between your design and mine is that I used two aluminium box section to strengthen the 1 m long spar, İt works great.
now Im building a much stronger v2 cause the first one broke on the board-spar joint while testing.(on sea with me on it while my dad was pulling me with a boat. which was terrifying to say the least)
You should video the building process for the second version bro!
big 3d prints like that really need some kind of extra strength, either box or threaded rod tightened down a bit like re-bar in concrete - I find thinking of 3d prints like concrete is good for the design process
@@trif55 Very nice analogy. When talking about pla I pretty much always use concrete as an example, cuz pla is stronger on compression then tension especially if the print lines are perpendicular to the force.
Also its stronger than some materials like abs but not as flexible.
I also used Al box section and shrink-tubed the bits. Not as strong as FG skin, but nice and smooth.
@@OzAndyify interesting 🤔 now I'm thinking what if I shrink tube after fiberglass/epoxy.
Does shrink tube peal off easy.
I'm amazed that the larger hydrofoil mast survived without being glassed. Great job on those new print settings! 👍
I hydrofoil a lot and if you were to stand back a little more that would of definitely flew in the water. It’s a huge balance game.
I have also a foil but electric and i think that you just need a bigger motor or bigger wing, is just not enough lift, if he leaned back more it would lift but the wing would stall immediately i have like 30h on a electric foil so i know a little bit
@@henryknowacki3554Yeah I agree stall or un-natural flight angle on the front wing could also happen instead of flight. Definitely more speed could help too no matter wing surface area. However, these are all things worth trying but stance would be an easy test before tedious fabrication.
Yes ne needs to lean back more problem is the box to all the electronics are right where he needs to stand so he'll have to address that somehow.
My gut feeling, is that the box is in the way, so he can't stand back any more. Something to consider for future designs I guess.
yeah he needs to be able to stand in such a way that his center of gravity is a fulcrum for the wing
I built my own hydrofoil through Clearwater foils and things I noticed with that is once you make it out of the water you lose all you surface tension/drag meaning you can go slower once you break free. Also make the wing thicker for more lift…
I always look forward to your videos. You're not afraid to show the development process and the failures along the way. Keep up the great work and you'll hit a million subs before you know it!
So many of these kind of projects on youtube are flexing by making it look easy and like ti worked first time. It's so great to see the iterative process.
As for what I'd recommend: A bigger front wing will mean more lift, at the cost of a lower top speed. Looks like you're right on the edge of breaking free.
you can check out actual foils for windsurfing boards to see how they do it(shape and size). i'd recommend windsurfing ones because those carry the most amount of weight(bigger board and a heavy rigg so a lot of weight)
Or a downscaled one off of a moth (sail boat).
@@moite2665 if the structure scales properly then sure. windsurf foils are the perfect size though so they'll definitely work
The 3D printed foils n Mask didn’t break is amazing and your patience is exceptional. Good work.
check the flexibility of the wings, i suspect that they are bending giving you a different lift capacity than what it has been modelled for. Also a taller mast will give you easier lift, så perhaps the wing you have is modelled for no flex and tall mast, so you will need more power through speed to get equivalent lift. you can also make some cutouts at the back of the board reducing the trailing edge and thereby drag. Last thing, you might be able to get it to lift with some "pumping" but then you might just break parts. Great build though! and great storytelling of the challenges!
this is probably right to some extent
Yeah, i second this. The wings seem like they are potentially not strong enough and are not keeping their shape.
Dude, I've watched you vids for the begining... and your voice has not just CRACKED... it has BROKEN IN HALF
Yes, to improve your receiver from getting wet is to put it in the balloon and Some silicone and some zip ties keep the water from getting into your receiver
Perhaps changing the incidence on the wings could help? Also I think you're right that lighter (and maybe stiffer) wings would be necessary.
Honestly great that you were able to go that fast. Bigger wing and I bet it will rise
Impressive. An inspiration to continue with our projects...)) Thanks
Seems like you're on the right path. Keep going, I'm sure you'll figure it out! Can't wait to see it.
Your an inspiration mate. Keep it up.
Keep up the good work. The mast the wing is mounted to may be flexing forward from the thrust pressure. You may need a brace going from the front side of the motor mount diagonally (45 degrees) up to the bottom of the surf board further up towards the middle of the board (front to back).
I love the shed man that looks really cool
Awesome idea and nice to see how far you already got with this. I did laugh a bit at that first design, still surprised the wing itself didnt break even in the second design. I think the wing is deforming from all the upward force it is receiving, you may need a slightly stiffer wing even.
Edit: ah i’m not the first person who noticed. 😅
My suggestions:
Place your center of gravity above your front wing.
Cover all of your printed part with thick layers of carbon fiber, especially in mast connections . With glass you are way too flex.
Seal better your battery box.
Keep your speed controller as cool as you can.
I'm really impressed that you get that fast with this setup.
Looking forward for your follow-on video.
Keep it up.good luck
Rear wing is upside down. Fantastic effort. Keep it up
I am looking to to build 1 for myself for a scientific experiment soon - just curious, how much did all the material cost you? Thanks so much!
Bigger wings will definitely help a lot and get more running time
Honestly like your videos because you never back down if things go wrong or stuff breaks. Looking forward to the next part!
I was looking at 3D printed wings for a while and was worried about them breaking. Happy to see it works and now I know I can use a 3D printed one too.
Great video! For your 3D printed foil, make it stronger by adding 2-3 layers of carbon fiber fabric/cloth or even fiberglass fabric/cloth (do not use fiberglass mat). Carbon fiber has way better mechanical properties (stiffness, rigidity, etc) . You can use an epoxy resin for that, the best resins for technical carbon parts are: epoxies and polyurethanes. Search online, you'll find a lot of details about this topic. Also, I am not an expert on hydrofoils but you probable need a bigger foil and more thrust on your motor/propeller. Good luck buddy!
Still waiting for part 2 and bigger wing for more lift!
You got everything else right 🙌🏻
I'm not smart enough for any helpful suggestions but I really do like this project. Good luck with the next iteration.
Great stuff.
Couple of suggestions.
It's all weight shift when controling the foil. So stand above the front wing.
Do quick rocking from front pressure to rear pressure and back to front foot pressure to get flying.
Much easier to do on a shorter board and with a flat deck.
One foot either side of mast is essential.
The amount of patience you have its amazing . very inspirational
Great build! Way to persevere. One thing which you might know, is that adding extra wall thickness when slicing has a much larger effect on strength and stiffness of 3D printed parts vs adding infill. It's why hollow structures can be very strong while reducing weight. Love what you are doing. I watch it with my kids. Best regards.
Great video! It seems you need more lift from the hydrofil. You may try changing the hydorfoil form a classical wing-tail configuration to a wing-canard configuration. A wing-canard will provide more lift while ensuring stability. Other than that, increaseing speed, increasing the main wing area on the hydofoil or tilting the main hydrofoil wing so the angle of attack of the main wing will increase may lead to generating some extra lift. Hope to see your progress in the next video!
The cut just before peeling the plastic had me absolutely dyinggg 😂😂😂
Like this guy, no messing about. 1:06 into the video and the board is half built. Other channels will still be padding out the intro/greetings for 2 minutes. the missing satisfying moment tho
Several ppl pointed out two main possible issues: bending of the foils and the box impeding you to stand back enough.
First I'd check foils bending and the effect of your body position on the board, I'd go for "static dry tests": block the front foil on a support and back foil under a support, get on the board to see how foils bent in order to keep you up. No need to go "full scale" like airplane wings' stress test yet you'll get an idea of what's going on and hot to adjust.
For the foils you might use some Carbon Fiber PLA for higher rigidity + spars. You could make the mast thinner as well with spars inside and reduce drag.
Looking forward to seeing the working product.
Late night RUclips makes me happy... Waking up early for work makes me sad.
Love it ❤. Best part was the fuse sticking in board after mast broke off 😂
amazing project! Well done, tough endurance to make it working !!!
Could watch this all day.
Idea: put a second lifting wing halfway up the post. More lift, more drag, but getting the board out of the water reduces drag. Some of the earliest hydrofoils had ladder-like lifting structures.
Having the wings be adjustable might be interesting for a version 2.
0:44 ha ! I REWATCHED that same sequence a few times just for fun!
After watching your videos, I am always willing to buy a 3D printer and start creating, but watching your videos is just too relaxing!
I think it's the flexibility of the wings. When you get up to speed the wings bend up past the point were they would provide the lift required. It's similar to porpoising in F1 where the downforce applies itself to the car, then after a certain point it squeezes the car down too much and puts the car at an angle where you get lower downforce, only in your case you don't have ground effect so there's no shifting in lifting force that bounces you off the board.
Could also be that you're not going fast enough, so if you're not able to go faster you should make larger (*and* more rigid) wings.
Awesone to watch this video Simon! Nice editing as always :)
That's badass, from that first video I saw of a Hawaiian guy riding an unpowered hydrofoil board-I instantly knew that eventually powered hydrofoil boards were going to be awesome. I even tried to get my friend who builds aftermarket high performance wave runners and jet skis to build a prototype. Awesome work on all that 3d printing and building, I look forward to the next one.
You definitely need a bigger wing. The wing you used is designed for kitefoiling. There the kite lifts you additionally so the kitefoilers can use smaller wings. Nice video and greetings from Germany
Its fun to watch you grow bud. You have come such a long way.
Very entertaining video showing warts and all. Know you will keep trying till you get it. Thanks so much.
Im hyped to see the new wings installed, nice project !
One wing trying to lift and unstable. Perhaps a second wing for additional lift and stability when you're board rises out of the water?
Great job and valiant attempt.
You never dissapoint, my dude! Keep on rocking in the free world! 😂😂
What an epic adventure! Honestly, I call this one a win
this was pretty cool. would love to see an update. super interesting.
you could also watercool the ESC by drilling a small hole or channel through the mast, the water pressure from moving forward will push the water to, then one outlet and you have water cooling. have done this on rc boats. Cool Project!!
I used to brake ice with a stand up jet ski but wet suit shoes will help with the cold and give better grip to the deck .
ilmao
i love your videos i think people appreciate your success as well as your failures its good to know we are not alone,very entertaining
its cool to watch! Nice job Simon!!
Try to reduce drag to get more speed, since lift will be proportional to speed.
Add a reinforcement strut to the vertical column to make it like a triangle, then you can make it much thinner. Also use carbon fiber rod in the middle of the 3d print to add strength with reduced width. Then you can add a bigger wing also to get mote lift at slower speed.
What a cliffhanger, DO BIGGER WINGS!
Nice wet suit transitions!
Wing is fine, you just have to be more backward, your body center a bit in front of the front wing or directly above. No design change is needed, just something that you do not break with foot into your battery department. Have a good day, Robert
I think it will work if you will find the way to stay back on the board! Nice work!
You should make an underwater jetpack that goes on your back and propels you underwater.
For sure using a real foil in carbon with suffisant surface will help a lot (Fanatic HA 1750 with 300 as stab or equivalent) ! Impressive work and so interesting like most of your videos...
OMW I chuckled when you put it in the water the first time, so much broke 🤣🤣
That's a high wing loading (per area). Tiny flaws in shape, surface and angle of attack get magnified making it easy to lose laminar. More cowbell (area) needed on the wing. Some good comments on balance as well. For your "watertight" boxes, at some point you may want to suck it up and buy a plastic tote and some grommets. I know you like huge 3d prints, but....
It's good to see you back to having fun with the videos. I hope you're feeling better and enjoy continuing to inspire.
That’s awesome. I’m always waiting for another video of yours. Truly an inspiration to keep myself of the bed and start working on a project. Keep it coming💪🏽🙏🏽
Sick! Great video. Looking forward to the next iteration.
I could be wrong but try adding a step towards the end of the board to help it break off the surface. Great video though, I really enjoyed seeing the problem solving and eventual success
really cool project, please continue that
Make it double wing, biplane 🙃 Amazing designs and everything, as always! Cheers!
Nicely done!! You are very skilled! I like that you are more humble than other RUclipsrs and don’t try to oversplain sh#t…
3d printing is a very powerful technology when you know it's limits and how to design for it, I wouldn't say this is a great use case
Nice, nice. Good work AND presentation.
Love this series and great video editing
Hey, nice video
I would say try to increase the angle of attack of the front foil
If that does not work scale up the foils a notch and then play around with the trim
Just a guess but it is worth a shot
Cooling: A little tiny hose and pump to bring cold water up the "mast" might work. A small pump in the electronics box with a meter of lift would be fine as long as it can self-prime when the craft isn't moving, or a small pump located somewhere in the mast.
Or rather than have a pump, a small 'scoop' at the base of the vertical riser. The forward movement should force some cold water up the tube and push it up to the electronics box.
For starters, my shop teacher would have smacked me on the backside if I made a project without the plans first. That includes the physics. You have to calculate the dynamics just like airplane, except hydrodynamics. Lift, drag, weight and thrust all need to be considered. But I commend you on trial and error approach. That turned out pretty good for just "wingin it".
God...did I really just say that?
This video was so chaotic. I love it
You could try pumping the board a little bit with your legs to try to change the angle of attack, get a bit more speed, and hopefully get it out of the water.
I've been waiting a long time for this, after suggesting it a few times. I had a feeling the black paint would be bad for heating up. I used to have a black Mustang.. It probably just needs a larger wing, and maybe even a second motor to make up for the larger size and mass. I would also consider changing the shape of the back of the board. The shape might be sucking it down, like a spoiler or like some sort of Coanda effect? Maybe round the rear of the board off and adding a layer of wax? I also think the shaft should have a larger foot towards the front of the board to counteract the torque. Otherwise, good job.
Those foils look small compared to a lift board. Cant wait to see vid 2
I recommend adding a gasket to your enclosures for electronics. I'm sure you can 3d print them in TPU or get some polyethylene foam
You need to wrap a larger underwater wing in a layer of fiberglass, it will make it much more strong. Hello from florida
Gretings from Germany.
I would suggest that you reinforce the wing with cf rods to help it not flex in the water under you weight. From my understanding, the wing should withsand you weigth when the board lifts, therefore you should strengthen it up.
Bruh I just got a ad for the exact thing that you are building on this video
I'm an aerospace engineering student and surfer. This is my take:
1. Surfboard construction
I don't know how much was researched into surfboard construction, but generally the wooden piece that goes in the middle (the stringer) is a full sheet of wood about 6mm thick cut to fit the foam then glued vertically against the two foam halves to form a surfboard blank rather than horizontal gluing as shown in the video. I could see curvature was added in the gluing process, but it would be better to do this by removing material after you have your blank glued up. Watch some surfboard shapers (I recommend Bendheim Boards). Shaping is tedious as it requires a bit of manual labor, but especially for this use case, since you don't need a pefect board, gluing up the blank and shaping and sanding properly will greatly increase the strength of the board. Also yes when you laminate with fiber glass you want to use 2 layers on top and bottom (in this case I would use 6oz cloth) and an aditional coat of resin at the end to make things smooth. You don't want to sand the actual fiber.
2. Surfboard Size
If you look online at other foil boards (powered and not powered) you'll find the length of the board is a lot shorter. Using a shorter board and implementing the foil and ellectronics like I suggest below will increase overall strength of the build.
3. Foil and electronics
In conventional foil boards, a space is routered in the middle of the board to for a hard piece used for foil mounting to be glued in with resin. This allows for the bolts to interface with that hard piece, which in this case could be 3D printed, and then the hard piece to distribute the loads more evenly throughout the board. I'm guessing with some clever designing you could make this "hard piece" the electronics box as well. This way, you can have a shorter board as the same place where your foil mounts is where electronics are housed. You could also do it in such a way that you have a space for the ESP to be in contact with water and cool. Depending on how large this box is I would also reccomend rather than just gluing it into the board to have a carbon fiber rod on each side going through the box into the rest of the foam (holes would have to be precut) to distribute the loads more evenly throughout the board. Carbon fiber would also be nice wrapped arround the foil itself for strength and the black look you were looking for.
Hope this wordy list of suggestions helps. I've always wanted to build one of these boards myself, but with my studies I haven't found the time.
mo powa! I'm surprised 3d print would be strong enough, but I guess that depends on how much you use. Really hope you figure out how to get this thing working. It will be epic!
Maybe you should roll some copper wire around soldering iron tip, making sort of closed wire shape. This may help you to cut polystyrene in future in a quite precise and silent way.