New Foil Assist Build in South Island, New Zealand

Build, Repair & Mod
1

Hey team,

I’ve seen foil drive gen 2 riders out having a blast at my local, I wish to join them but can’t afford the price tag. I’m an experienced wing foiler & surfer, but not prone foiling.

My first attempt will be a classic bolt on, I appreciate this has been done many times before but its my first foray into hobby electronics. I have done a small amount of 3D printing at my local library, so could do that or might investigate setting up my own printer.

My requirements are:

  • 85kg rider
  • 85L mid length board to start, hopefully on a smaller prone board in future
  • axis art v2 939 foil
  • ability to efoil to get out the back, but primary use is foil assist

My planned parts list:

  • flipsky 6384 waterproof motor
  • flipsky VX3 pro remote
  • 80A flycolour flydragon ESC (this is the part I am the least confident about).
  • 12s2p or 10s3p battery made by a local builder. He said he could make it out of multiple 10s1p batteries so it could be split up and transported.
  • waterproof housing (any waterproof aluminum options that easily dump heat?)

Any glaring issues with this plan? From what I understand, two of the big issues are overheating and water-tightness of the box.

Thanks!

2

The ESC needs to have high max amps in my opinion.

What cells will your battery builder be using? Moilcel p45b are good for our needs.

I would recommend the 12s pack over a 10s if you want to efoil around.

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3

The battery builder said he would be using:
LG HE2 Cells 2500 mAh 20A in the 18650 package, with a BMS.

He hasn’t built them for this exact application but has built packs for ebikes and eskate.

For the ESC, I can see that there are numerous options within each model, 80A up to 160A, would you recommend going for something like 120A?

On your original build I see you used a box mounted on top, how did you keep the unit from overheating, or is that not an issue as long as you aren’t trying to constantly efoil around?

4

Hey, are you in Christchurch? I am, and I’ve just finished an Assist Box style build and also a Tow Boogie, both in need of good testing and improvements. I started in a similar position to you with hobby builds etc. I’ll PM you.

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5

Interested, as I’m in Chch too, and will slowly get into it, … once the windy season dries up.

6

I just ordered my motor, prop and remote from flipsky. For others who want to get flipsky gear, I emailed them asked them for a discount and they gave me 10% straight away.

7

just before you spend a lot on batteries 21700 style of battery is a solid option if you using same size battery box as the FD Assist

Molicel p54B
Molicel p42A
Samsung 50S

Have sent you a PM

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