hello!! i’m a surfer and a maker, i build everything i need normally and i have everytool for every application.
i generally build wood surfboard and eps bord but i want to get in the foils now.
i want to build it and learn how to ride it… i get a lot of fun on building vs buying.
i found this old file… do you think is a good design? i cannot contact the designer to ask if some one have actually tried already…
does someone can reccomand a foil design in CAD that actually work in real life so i can avoid to waste money and just get something that will work for sure?
i took that file and customized a bit…
i make wing and stabilizer detachable for easier transportation,
made a pump board 90x40x5 i took the design from some picture on the internet
i modified the aspect ratio of the wing to bring it to 1700m2… what do you think… it make sense?
btw i made some standard rail to attach the mast to the board, does any body know where to buy the nuts and boltis?
and also what bolt size do you suggest for attaching the wing to the fusolage and the stabilizer and the mast also to the fusolage?
What is the intended purpose of the wing? Pumpfoiling? It might be fun to build it but probably less fun to learn howto pumpfoil with such a wing. I don’t want to be a spoiler, I built (and still build) a lot of things from carbon fiber.
Among the things I built, the hydrofoil wing was the least satisfying thing. It is an efoil wing and sort of works but it is really instable.
There was a huge progress in hydrofoil wings over the past years, especially for pumpfoiling.
Not really worth the effort, better build a board, a stabilizer, fuselage or mast, much easier.
Your suggestion is:
Have fun on building the board the mast and the fusolage… But buy a wing from shop?
If you think this high A/R wing i modified is not good for pumping what a good pumping wing do you suggest?
Even some specific model you have in mind to suggest will be highly appreciated.
For God now the reason I moved in Austria in a city were is some sort of maker lab where I have access for pennies to state of the arts 3d printed (the one I will use is like 12k)… Pretty crazy Austrian over here…
So I can build this stuff for a fraction and have so much fun with… So I don’t mind to waste my time on the building I found it so much fun… But yes… Would be sad to start pump foiling which is so much hard already. And get it nearly impossible thanks to a wing that is completely out of design…
I also have a 3d scanner and AI tool to extract for images a rough 3d shape and then refine it with fusion 360.
Gong trail v3 is a good beginner pumpfoil wing. The surface of around 1700cm2 (you mentioned) is in a good range for pumping, but the hydrofoil profile(s) makes a wing good or poor. If you build your own, best is to find a prooven design that works well, which is difficult because you won’t get those from commercial wings. I think it is not a good approach to stretch a random wing from the internet to a specific size, in doing so, you change the hydrofoil profile from a wing you don’t even know how good it is without changing it.
Best would be to take a mould from a commercial wing, or maybe take a 3D scan and build a mould from that.
mmmm very interesting… the wing doesnt cost that much… and i can scan it to get the matching fusolage, the mast and the board… your idea is very interesting… it will be a safer bet…
the profil of the wing i have scatched is completely different from the gong… what it suppost to be good at? surf foiling? wing foiling?
Takoon is aslo good and not too expensive. The connection interface of the wing to the fuselage ist easier to build than the gongv3.
A bit more expensive than the TrailV3 but carbon, Trail is fiberglass: Foil Pump Front Wing – Takoon.
today just for fun i spend a bit of time to get “Closer” to the shape “over view” of a pumping wing… i can’t get closer than this to it without altereting hydrodinamically the whole foil… but as @sat_be didnt recomend i stretched a bit the design i got to match the m2 figure.
what do you think? worth of trying?
the fact is to build a wing my own i would spend (funny to read this):
30 euro for high quality 3d printing
80 euro of carbon
50 euro of resin
lots of fun on building it.
total 160 euro compared to 450 euro…
for 450 i can built board+mast+fusolage+stabilazer+wing…
if only i had a proper pumping wing shape i will be less worried to just waste the time and money on the wing…
I’m also on a personal challenge to build a wing, but for an efoil. I currently print it in PETG and laminate it with a few layers of carbon. The problem is stability. They do fly, but so far I’ve only been able to sustain short flights of about 30 seconds.
I’m using an H105 profile — is there something more suitable or significantly better than this?
Honestly, I don’t know if the issue is the rider’s lack of skill, the hydrodynamics of the wing, or the lack of stiffness in the wing + mast assembly that’s preventing me from sustaining longer flights. The roll feels unstable.
My intention is to use the efoil in the ocean, open water, in messy waves up to 3 feet.
As Fas as i know the H105 is for high speeds and minimal cavitation. I would recommend : try wing_bot for profile selection and then winghopper for wing design.
I use the Gong curve v2 and like the L size ad I am 95kg. On the gong site you can buy the xxl for 245euro. They are great wings and you would be wise to go this way as a 1st try aa a diy wing is most probabley not going to go well. Just my opinion and I am experienced in composites and decided buy and not diy.
This might sound blunt but I think you are being naive to think you can just replicate a foil by copying the shape
The companies that build the good ones have experienced designers, engineers, fabricators and team riders working collaboratively likely with multiple iterations to get it right.
You might get something that looks similar but I have my doubts it will work the same.
If it was easy and cheap the DIY crowd here would all be making their own but very few do.
Think about the feedback you are getting - you joined here for exposure to a known group of people with experience right?
If your fun is building then by all means carry on - who knows you may do it. Or if your goal is to build AND get out on the water having fun right away maybe starting with a known good performing foil is a better place to start.
