Foil Drive Assist, DIY

Thanks. It was a spark not a gradual heating. I replaced the XT60 and tried again by plugging in the anti-spark XT90 last and it’s now charging without any apparent issues. My charger is a new (but very cheap) 2A from AliExpress.

STL Available? Now that I’ve built my lunchbox I’m keen to use it for other things too.

What stl file specifically are you looking for?

While testing Sequre 12200 in the air at home, I get jerk at certain rpm.
Is it solvable?
As people reported that this ESC working, I don’t understand how they use it while having that desync problem? Never had this problem with Xcross Blheli…

Can someone please help me understand why a BEC has a GND IN and GND Out? Then in the Maytech wiring diagram, these are connected anyway as I’ve highlighted in Orange here, why are they connected? I don’t think I added that extra connection into my build but it seems to be working ok. thx.
image

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Stops interference as pwm is twisted pair.

Run your pwm yellow black all way to rx as stand alone twisted pair.

Then 3 other wires

  • battery voltage
  • 5v from bec
    Earth from bec (same pin as black of pwm)

I know its essentially same point when you look at it is more to reduce chance of interference or having earth floating up in voltage

Safe option just my 2c

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Both GND are connected, this is just to allow you to connect GND wires from the high voltage source as well as GND from the 5V load.

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Thanks @marcoz, so what I’m reading from that is follow this diagram but not include that extra bridge GND-GND connection that I circled in orange in the diagram. That is how I have done it, though more through being careless than by intention :roll_eyes:

:wave:
How did you attach the box to the board pad?

Cell-Supply in Tauranga should be able to help. I am about to start my first battery and will try them out. Can feedback if needed…or could buy in bulk together for better price

Has anyone got a printable design for these mounts to hold the box to the board?

I’ve already got the dual lock and the bunnings strap so would love to avoid paying $100 (NZD) for two bits of plastic.

Im sure you could make them yourself on onshape or with fusion 360 .
Just measure how wide the strap is + clearance. You got a picture of the shape and you go!

Ps: sorry I don’t have a design ready.
Onshape I easy get into though and great to learn for future projects. Sorry for the answer without a design.

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Here is another option. Foil Assist Base Anchor by seagullnz - Thingiverse

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@nekitesurfing Interested to hear what you think of my runtime (based on your experience).

Im only getting just over 10mins efoiling…

I am running 11s3p
6384 120kv
trinity 3 blade prop
(I also have Microhobby 2 blade folding prop which i will try to redu e current draw)
F one skate 1050 foil
90 litre f one wing board

On 3p 10min seems good. What batteries are you using? If you had 12p then say 40min kinda typical real efoil times especially on such a small wing.

Are you using the Maytech remote? If so, what % throttle are you using to keep up on the foil? On a big foil with a 3 blade motor, I’m at around 45% throttle. On a 12s2p pack made of p45b cells I can get around 20 mins of efoiling although I rarely do this as I’m frequently out in waves and spend a lot of time with the motor out of the water.

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I mistakenly bought the cheap 6384 with hall sensor. My idea was to do the potting, do I return the motor, do I potting and cut the sensor wires coming out?

Just remove the sensor, if you remove the bell, you can acces the sensor pcb and remove it.

Have you seen this? I have same motor, considering it as an alternative

and