Ok…tnx for that info.
I checked and price for RL mast in lenght 75cm is 65e…I’m really in doubt if there is any sense to go with diy project. All the materials needed to make it cost more and you need a lot of time to make it.
Can you please tell what motor did you use?
Go with Gong. You can not get a cheaper foil. Use the V2 Mast. Very stiff and plenty of space for cables and hose.
GONG FOIL ALLVATOR V2 ALU MAST - Foil - GONG Galaxy (gong-galaxy.com)
You can find a lot of used wings on the internet.
Nice Motor, can you give some specs?
Dimension
KV
Power
I think I will not even start building my efoil.
At first I have in mind APM motor and 150e for esc max. cost for both 250-300e.
Now I see that the only way is waterproof motor flipsky or similar. And prices are above 400e plus 200a vesc…and not to mention that I have to go to 18s lipo battery to get enough power…I’m simply not willing to pay so much only for motor…bad
Does anyone have any cheaper solution?
18s??
There are people foiling with 6s. Standard is 12.
You can use APS 63100 outrunner motor
Cheapest motor option is a 63100 Outrunner run wet: https://alienpowersystem.com/shop/brushless-motors/63mm/aps-63100-outrunner-brushless-motor-140kv-4500w/
Runs well on 12S.
Needs modification, search the forum for outrunner. Also needs some maintenance, better to run in fresh water.
To build an efoil is not cheap, you still need esc, battery, board wings.
Using a chinese 6384 you can save 60 bucks, but in the overall cost of a real efoil it is negligible
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18s??
yes:
flipsky 65161 Voltage: 6-20S (25.2-84V)
APS 70160 MAX VOLT: 24S (100.8V)
so yes…with my 90kg + all gear…plan is to get above water 
I know it is not cheap…I didn’t say I cant afford it but that I’m not willing to pay so much for motor.
So salt watter is not good? I gues it need to be washed after use in sea.
12 -14S are enough, some run on 16S, but I would not go above 14S, it‘s just too dangerous in the water. It doesn’t mean that you need run the motor @max S specified.
I run my outrunner in saltwater some times in holidays, it works but even if you rinse it in fresh water after use, there will be more corrosion and you need to change the bearings more often. On the orher hand, no problems with seals…
The 63100 outrunner on 12 s will lift your fat ass out of the water without any problems.
Get a Flycolor HV 150A esc it will be around 90us$ and go.
I run this combo with a gong curve L wing for 2 years without any problems.
I am 80 kg and got on wing with 60% of max power.
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Do you have any link for motor your mention?
I will go for outrunner.
Tnx
For now motor problem solved
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This one will need bigger cooler
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I plan to glue PLA 3d printed segments together to about 3 feet. Load epoxy infill through the cut open sides, laminate in about 6 layers of carbon fiber. Comments?
Better print two moulds and lamintae two halfs with some layers. Sand to fit and put in as much fiber you can fit, 45 degree biax and unidirectional as well.
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Thanks. Reflecting on your message, I realized that I have a conceptual misunderstanding. I will spend more time looking into this. Anything you can share is greatly appreciated.
My initial reaction, per your comment - two molds - two carbon fiber parts with 45 degree biax and unidirectional. 6- 8 layers. More? Change in geometry. 2-3 centimeters next to the edge are flat on both ends, so it is simple to understand how much (and how) fiber to load. Sandwich - carbon part from molding, carbon fiber (3-4?) with epoxy and another carbon part. Weight on the top. Center is hollow.
See here how I built my mast, I still use it. It could be more stable but it is ok, put in as much fiber as you can fit in.
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