Hello,
I am looking to build my first efoil, with the following specs: flipsky 6384, molicel p42a 12s4p for power.
For ESC I was first considering a flier, then went to Flipsky 75200 VESC but I have seen people struggle to configure it, though the VX3 controller looks nice. What would be a good ESC/VESC to pair with that system?
I am looking to have a fair run time of 45 minutes and enough power to get to 30km/h at least.
Are you building a rig that will be full efoil (powered all the time) or foil assist (power aid to get foiling but power off at times) ?
Full efoil, I may have over estimated the battery capacity, since I dont know if people talking about similar batteries were doing assisted or not…
I would recommend you look at some of the threads here that show successful builds for that activity (full efoil)
These are some good ones with lots of detail
I’m still new here and starting to understand everything.
You are correct with 75200 can have setup problems, I almost gave up and had numerous frustrating and inconsistent results.
However once I knew where the problems are, I had no issues and my 75200 runs well and runs cool.
For reference, the issue is using the wizard or auto configuration. You need to then go through the values and adjust them, such as max erpm, max battery amps, total watts.
I used motor amps as my only limit, and increased all the other beyond range of ESC and motor.
I basically just replaced the Foil Drive Assist Plus electronics. FD only use the maximum battery amps as their limit according to someone who managed to get into the ESC.
FD have high values for everything else, but just limit battery to 60 amp.
There seems to be different ways to control the power.
Another possible problem with the 75200 is condensation killing it, so people coat the ESC which means you need one without the case, which is usually the case to attach it to a heatsink.
I used 3M adhesive thermal tape squares. The hardest part of the build was unpeeling the cover squares.
I’m using a box and keep it open when not in use, so in time I’ll see if condensation is a problem.
I see, is condensation caused by running the water cooling loop? If it is ambient moisture, wouldnt some dehydrator packs be enough to prevent it?
Another question, does condensation appear on the VESC itself, or on its surrounding, and then the water makes its way to the VESC? If its only the surroundings water proofing would be an easy job, if its the VESC, not really looking forward to that…
I have decided to get the Makebase 75200 if I go the VESC route, or a SeaShark 200A for the ESC route.
I’m not sure about the condensation.
My guess is most people use a sealed container for their electronics, with use the inside air heats up, then after use, with an external heat sink the ESC cools quicker than the internal air and condensation forms on the ESC.
I have my heatsink in the box, and the box is left open after, so I’m not concerned.
So as long as I vent it just after use, and have silical gel bags for moisture absorbtion, I should be fine without modifying it?
One more thing, if possible, could you share your 75200 settings and the motor you used? I know its not going to be 1:1, but it could be a starting point. I have a bunch of posts saved with settings for that VESC but you can never have too much info
To see the setup process for a 75200 you can watch this video where forum member ludwig_bre. He pairs a 75200 to a 65161 inrunner. You can still follow these steps with a different motor type.
I use the flipsky 75200 with waterproof case. Its a bit more money and heavier than the ones without case but I have zero problems. Several friends use same unit also no problem. Setup is not hard. Best not to upgrade the firmware unless you really know what you are doing.
Okay, massive thanks from the video on it, never found it before. It will come extremely handy,
I was considering the water cooled one to keep it as cold as possible, I assume its waterproof as well.
Shame the Makerbase one (100euros cheaper almost) isn’t water cooled/waterproof without potting it or using non conformal coating…
Do you mean the watercooled one that is potted ?
'Flash Deals Flipsky FSESC 75200 75V High Current 200A ESC Base On Vesc – FLIPSKY
this one.
I am not using water flow just passive cooling thermally to the mast base. Never gets barely warm in 30kmh 100% efoil mode.
I have 2 my other friends have 3 and all happy campers.
I might actually go for a similar concept: non water cooled 75200 and have JLCPCB or some company machine an aliminum waterblock to put on the heatsink for cooling. Maybe even a closed loop with a heat exchanger…
PD: that vesc is not waterproof I think
Its probably not 100% waterproof as in submersible but sure can take a splash. In my fliteboard setup its always dry so far 
I like that the capacitors are protected unlike the other versions.
I would think that you have silica bags and keep it sealed, or no bags and open.
I have a 6374 motor, 8s battery, with 70 amp for motor limit and 100 amp limit for everything else. For watt limit and erpm I just added zeros to make them bigger.