I’ve managed to get hold of a broken Foil Drive Max and I’m planning to rebuild it using new components.
I could do with some help identifying a few of the parts and any recommendations for suitable replacements.
The VESC is an FSESC 6.7 Pro V2.0, which Flipsky can still supply.
Does anyone recognise the remote receiver module? And I’m assuming the other board is the Bluetooth module — can anyone confirm?
My biggest concern is getting the remote signal to transmit reliably through the board.
Gotta love how they charge 5K+ for a flipksy fsesc, maytech remote, and probably a motor from them too. How old is this kit? id just buy a maytech kit, with the receiver, so if you cannot bind it to the current remote, you have a new one from maytech, its like a 100 bucks.
Don’t forget the design time, … the waterproof alu “Packaging”, the support team, the influencers to push the product, the retail network margin 
Then the height of the challenge is inversely proportional to the attempts, copies, …:
Not counting the waist-battery solutions like North…
How many working DiY FD Gen 2 style designs on this forum since the Oct 2023 launch: I count less than five in 2+ years 
How many competitors ? very few, the Mantafoil Take-off (Oct 2024 first release), …
How many Chinese copycats: I count one, SevenLarky
Agreed, but still, I highly believe that the price is far too expensive. Take any efoil brand, you get so much more. Whole board, large battery with much more lithium, custom mast, wings, custom design and much more custom engineering. You can already get a waydoo for roughly the price of a FD. And a FD is nothing more than some chinese parts put together with a couple of lithium cells in their aluminium case. Im not saying its a bad product, but when selling these kits for 4-7K and most are simply rebranded chinese items except for only the battery tray, i dont think its a good deal.
Also, waydoo is coming with their own assist.
The biggest issue is that their products have no forward or backward compatibility. And somehow their userbase still just pushes out the cash time after time. I can’t lie it’s taught me a thing or two about just how far customer support can take a company. Also don’t bother perfecting a product, just release it and let customer services smooth the speedbumps and self fixes 
How they get away with breaking consumer protection laws and anticompetitive laws is more of a wonder though. They continually sprout “void warranty” claims every time someone uses a third party mast pod.
A bad deal and a maintenance hassle then.
The Waydoo Foilboost availability and price :
Put the bottom part in a pan of boiling water it will loosen the epoxy and the antenna will come out, I used a 2.4ghz pcb antenna of amazon when I rebuilt my unit.
Well said I couldn’t agree more @Jezza.
I do think the Gen2 was a great way to launch foil assist to the masses, but once trench boards were being developed they are simply trying to engineer around a problem instead of engineering the problem out.
Its weird, I have a few boards and would still stick a normal under board assist on them even without trench (mainly wake and pump style boards). I think that’s what they are really trying to do.
For the trench guys, the Waydoo is actually going to make their lives way simpler with their battery design. Use a thirds party mini motor pod or integrated mast and its arguably way nicer than foil drive.
Looks like the VESC in the unit you acquired got toasted. Can you confirm if it’s this VESC?
https://flipsky.net/collections/v6-series/products/dual-mini-fsesc6-7-pro-140a
The specs on flipsky’s site say:
I haven’t heard of anyone on this forum needing anywhere close to 400 amps to get on foil. I think the usual range is closer to 50-100amps. Maybe 150 as an upper limit.
I wonder how that unit’s VESC got burned out.
re: remote receiver module, I think Flipsky uses a custom Maytech setup, but the picture on Maytech’s site doesn’t look like the picture of your chip that says “RF Interface”
From what I’ve read, FoilDrive is not an innovator in terms of reliable remote signal transmission. You might be better off just buying your own Maytech or Flipsky remote setup and taping an antenna to the nose of your board (like Waydoo does)
What sort of battery pack did you find in the Max unit?
its 11s3p P42a batteries, and some semismart bms used for chrg only, its epoxy potted for water-resistance, I am struggling to find small 11S bms, dali has nice ones, but they are only 12S /13S/14S. and you cannot short 12th cell to 11th, to make it work like some other brands.
I managed to strip jiabaida bms from its alu heatsinks, de-solder uart port connector, it kinda fits but would be nice to have something like DALI injection molded.
i also sketched up the XT90 2+2 connector holder for the battery
