# Another cheap and quick foil assist project from fFrance

**URL:** https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331
**Category:** Build, Repair & Mod
**Created:** [March 16, 2024, 10:57am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331 "2024-03-16T10:57:16Z")
**Posts on this page:** 10
**Page:** 1

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### Author: ![Sebdesgoudes](https://foil.zone/letter_avatar_proxy/v4/letter/s/9fc348/32.png) [@Sebdesgoudes](https://foil.zone/u/Sebdesgoudes)
#### Post date: [March 16, 2024, 10:57am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/1 "2024-03-16T10:57:16Z")

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Hello,I am happy to share my realisation in this great forum !  
I am wing foiling for 2 years now, and sometimes there is not enought wind to start to fly ! I discovered foil assist and I decided to make one based on Maytech kit,  
I ordered 10 days ago my kit and it was delivered 5 days after, I had just enought time to modelize and print the mast adaptator for a Gong V2 aluminium mast

 ![image](https://foil.zone/uploads/default/original/3X/5/0/504be4dd87bb5973ace961694621cb3799f5555a.jpeg)

I also modify a thingiverse print for the propeler and assembly to test the motor and the remote

 ![20240313_155948](https://foil.zone/uploads/default/original/3X/b/7/b7f7ce666d0ad191056ca8113b548bd12291b200.jpeg)

for the battery it is a 6S 6,5A for a big drone  
For my first test in the water, the “electronic box” will be a ikea food box

 ![20240313_184758](https://foil.zone/uploads/default/original/3X/5/4/54eb922c586bdd04cc142447f3c9ef179c51d68f.jpeg)

the first outside test is made ! it seems to work ! I need to receipt a 24v 80A relay with a waterprrof button and cable gland for the final test in water !

I found the price outrageous! minimum 2000€! for a foil assist, that’s why I decided to make it ! the Maytech kit cost me 410€ (delivery and customs included), the battery 85€, the charger, hardware and other miscellaneous items 80€, so we’re under 600€.

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### Author: ![Sebdesgoudes](https://foil.zone/letter_avatar_proxy/v4/letter/s/9fc348/32.png) [@Sebdesgoudes](https://foil.zone/u/Sebdesgoudes)
#### Post date: [March 16, 2024, 11:00am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/2 "2024-03-16T11:00:51Z")

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I don’t know how to share a video ! so that’s a copy of my first “outside test”

 ![image](https://foil.zone/uploads/default/original/3X/5/0/50df0bcb11742ca771cd03f40531c1428c0409d8.jpeg)

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### Author: ![Bzhwindtalker](https://foil.zone/letter_avatar_proxy/v4/letter/b/53a042/32.png) [@Bzhwindtalker](https://foil.zone/u/Bzhwindtalker)
#### Post date: [March 17, 2024, 9:57am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/3 "2024-03-17T09:57:40Z")

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You will need cooling of the maytech controller to get any significant power. Much bigger alu plate, and thermal pas/paste to all areas of the pcb.  
If you Can Do that, and have the alu plate touching the water/outside of box, it will work if you have the right prop and settings.

My maytech vesc ended UP dead by sea water, but After thermal modification it worked well!

I foil with this motor, on 7S/20Ah, but with 65kg weight and big foil (1725cm2)

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### Author: ![lishine](https://foil.zone/user_avatar/foil.zone/lishine/32/29468_2.png) [@lishine](https://foil.zone/u/lishine)
#### Post date: [March 17, 2024, 10:53am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/4 "2024-03-17T10:53:12Z")

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Could you please share the STEP file for the adapter model?

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### Author: ![Sebdesgoudes](https://foil.zone/letter_avatar_proxy/v4/letter/s/9fc348/32.png) [@Sebdesgoudes](https://foil.zone/u/Sebdesgoudes)
#### Post date: [March 18, 2024, 10:54am UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/5 "2024-03-18T10:54:02Z")

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I posted it in thingiverse

> **[foil assist mount for maytech 6374 motor and gong V2 aluminium mast by...](https://www.thingiverse.com/thing:6538203/files)**
>
> STL file to create a foil assist from an alu gong V2 mast and a 6374 maytech motor, I preferred to simplify the parts as much as possible for greater strength, the two parts around the mast hold it in compression thanks to M4 stainless steel threaded...

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### Author: ![Sebdesgoudes](https://foil.zone/letter_avatar_proxy/v4/letter/s/9fc348/32.png) [@Sebdesgoudes](https://foil.zone/u/Sebdesgoudes)
#### Post date: [March 18, 2024, 3:52pm UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/6 "2024-03-18T15:52:37Z")

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Everything fits in the hermetic ikea box, I’ve added a relay and a waterproof switch, I’m actually thinking of putting an external radiator, but I’ll have to change the box because with this one the radiator will be underneath and as I’m using an inflatable gong board that scares me!  
My use will be purely as a foil assist with an 85l or 105l or 145l board, and the foil will probably be my 1650cm2 XLT veloce.

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### Author: ![Bzhwindtalker](https://foil.zone/letter_avatar_proxy/v4/letter/b/53a042/32.png) [@Bzhwindtalker](https://foil.zone/u/Bzhwindtalker)
#### Post date: [March 18, 2024, 4:44pm UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/7 "2024-03-18T16:44:37Z")

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My experiance with the maytech vesc 100A is that it is impossible to foil without significant cooling of the mosfets and pcb.

You can check on my thread the different steps I went thru to get it to work.

If you make a Big 3mm Alu plate, and cool it from outside the box, it should work.

Otherwise you will just get into thermal limits.

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### Author: ![Sebdesgoudes](https://foil.zone/letter_avatar_proxy/v4/letter/s/9fc348/32.png) [@Sebdesgoudes](https://foil.zone/u/Sebdesgoudes)
#### Post date: [March 18, 2024, 5:39pm UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/8 "2024-03-18T17:39:48Z")

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Of course I saw your thread ! You said I must have the good settings ! Do you know what I have to change in VESC tool ? (arghh so complicated for me !!) I am using the same 2 blades propeller than you (found in thingiverse and mofified for maytech motor

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### Author: ![atilla](https://foil.zone/letter_avatar_proxy/v4/letter/a/b5a626/32.png) [@atilla](https://foil.zone/u/atilla)
#### Post date: [May 14, 2024, 4:46pm UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/9 "2024-05-14T16:46:15Z")

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Bonjour Sebdesgoudes, thanks a lot for the new gong V2 mount!  
What is the length of M4 screws please? Merci

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### Author: ![rttn](https://foil.zone/letter_avatar_proxy/v4/letter/r/bcef8e/32.png) [@rttn](https://foil.zone/u/rttn)
#### Post date: [May 14, 2024, 7:22pm UTC](https://foil.zone/t/another-cheap-and-quick-foil-assist-project-from-ffrance/20331/10 "2024-05-14T19:22:58Z")

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Protect the motor from scratches!
