Thank you so much !
I’m still affraid of this part:
You waterproof this by just puttin silicon on the screwhead ?
Also, how do you put a screw here, under the plate to fix the vertical bar, without it creating vertical offset / void between the case and the plate ?
Cheers
For the screws outside we used those ones with a bit silicon underneath the head:
Did you ever heard about countersunk screws 
? I’m really looking forward to your build.
We thought about a triangle too, but were too lazy to implement it. Not a bad idea to make the front tip foldable.
Different ways to see a bow (de: Bogen):
Wow.
most epic board I’ve ever seen.
Thanks for sharing, creative folks!
That is a great build and a fairly easy, cheapish and fast way for first timers to see if efoil is even something they think is fun.
Regarding your item list I can not even find the VESC on hgltech.com and the cheapest foil for efoil I can find on rlboards is $700+ not €420 and equally I can not find the battery at nkon.nl - ahhh I see now, you used 7 ours to make the battery your selfs - is that what you used the Max case 004 for?
I may be looking the wrong way? But I wanted to buy all the items on the list for my son, so he could have a go at it.
Heyho,
here is the Link for the Vesc:
https://firduo.com/collections/hgltech-esc/products/hgltech-hi200-75v-200a-esc-base-on-vesc-for-e-foil-surfboard-hydrofoil
You can try HGLTECH20 as code, maybe it still works
The cheapest way to get the Foil is to write René an email what you need and ask him for the price: renda.lehman@icloud.com
In our case: Frontwing (efoil-wing 2018), backwing, fuselage, mast 75cm, mastplate, srews
I payed with Paypal Family and friend
I spotwelded the battery by myself with Samsung 30q but they got pretty expensive like all battery cells right now. Where are you from?
Cheers
Great thank you. The code is not valid anymore.
I’m from Denmark
this one still works: hgltech10
Great, thank you very much!
One of the main hurdles for me is that I do not feel confident enough to build my own battery, everything else I should be ok with.
So I’ve been looking at ready build batteries for e-bikes and similar. So me question to some of you more experienced builds is; are those batteries good enough? I don’t mean are they the best option, but are they good enough for a first build and to get up on the foil and have enough Ah to stay out on the water for 30 min or more?
I.e. would it an option to use two of these batteries in parallel so that it is 13s6p with 48V nominal and 120 Ah in total or is a complete bust going that way?
By the way, is there something I need to give special attention if I’m going to use the board in saltwater?
The problem with most ebike batteries is that max discharge current is too low. With around 100A continous you should be ok.
hard to read between line with this battery but,
operating amp: 13a
max discharge: 40a (fuse will probably blow before, 25-30a is usual used)
data :
48v 62Ah 1000w 13S3P
After the combined capacity: 60000mAh (60Ah)
so my guess : 13*3= 39 cells 60/39= 1.53A so 3p = 4.6A
so you end up with a real 48v/4.6A pack made with 3P 1.5A" high discharge" 18650 …
6-8 packs should work 
what I feared / expected
But what would then choose if you were not to build a battery? Two LiPo in parallel?
You could use 2x6S LiPos in series, or 2 in series 2 in parallel to get 12S. For example tattu, somthing like these: US $212.48 17％ Off | TATTU 22000mAh 22.2V 6S LiPO Battery Burst 25C for Big Load Multirotor FPV Drone Hexacopter Octocopter
https://a.aliexpress.com/_mOeVCot
I run my efoil with LiPos but I would build a pack from Samsung 30Q 18650 or Molicel INR21700 P42, better value and safer than LiPos.
Dont know how well this work in reality, but at least this version is rated for 20A per cell, not that great but more than previous versions.
If you use this you will have cells in your hand. If you have the cells in your hand, spot-welder them. It’s not rocket science, even I could manage to do it.
Maybe - I just want to make it a secure and reliable as possible so that my big kids can take the board out with their friends and I don’t have to worry about anything. Of course they will be careful and not trash it around, but use it as it’s supposed to be used.
If kids are involved definitely don’t use Lipo. What age are they?
