So sealing it did no good! I’ve added a hatch. Now my battery wont fit in so that’ll need rearranging! Good news is that the boat hatch is waterproof thanks to @Sourcecode and Silkaflex.
While all that was going on I had a lot of help from @Bevo with files for the MP70131 motor for prop and mast mount. I alco cut my mast down to 80cm as at 100cm there was too much flex
Next id to cut the connectors off my motor and re-solder, you’ll see above the trouble I had before…roll on solder flux, cut the old connectors off, cables up the mast piece and I didnt even use a soldering iorn to out the xonnectors back on, just a heat gun!!! Solder flux is amazing, below is the one I got from Amazon
Last bit of the update is a test today on the motor. Managed to get it running but uts full throttle or 0. Im sure its just a setting so all help is greatly appreciated! Motor Test
Once I get trottle fixed, I’ll start logging data.
So, just a short update. Due to lockdown and new job etc. And that I couldnt get my motor working properly I got very frustrated and gave up on the efoil since my last post until last week when I started thinking more about it. I spent a few nights just staaring at it and thinking etc and said fu#kit i just want something that is quick and dirrty and works. Besides the face that my last board never worked, it was heavy!!! Super heavy and that was down to me repairing an old windsurfing board when I had no skills in glassing etc. So I was v liberal. Lots of lessons learnt, plenty more to go Im sure but a change of tact to try get something quick ready for the season. More updates to follow
So it’s been a long long time getting here but finally I put something together and headed out today.
Current setup:
Electrical Junction box IP56
Forced water cooling by forward motion.
All cables cable tied to mast as this is not my final setup (god only knows what will be)
Flipsy 200A FSESC with Bluetooth module and anti spark waterproof switch
Chinese foil mast and fuselage with large front foil - also have a short one.
Flipsky 65150 120kV Motor
Battery is 12S 1P 50.8V 42AH battery, no bms and a 50.8V 4A charger.
Oh and the fliteboard prop
Wingfoil inflatable board 135ltr
I weigh 84kg and had wetsuit and left jacket so prob like 90kg wet. Battery box is 9.9kg. Board, foil, motors and cables are 12.9kg. So thats a total of 112.8kg
Headed out today and learnt the hard way on battery limits, I prob used half my battery before I realised I’d max battery set to only 99a. Anyway I reset that at 130A and still couldn’t get up, standing, kneeling, sitting, lying. Plane was no issue but not so much as an inch raised up with me on the board. But choppy out but I don’t think that should have caused too much issues?Anyone have any helpful ideas?
Battery Link
That’s the battery seems good. I put battery max at 160A and norm at 150A.
I never saved the data today( will next time) but a buddy took some videos, when he send them I’ll throw them up. I had up to 130A being pulled at some points buy ya no foil
I think it’s a Ride Engine Futura 2018 Wing. I got it on Mac Kiteboarding
Apparently modeled around a slingshot: Review
I think the front wing is actually a Colugo and 68cm sounds about right but I can double check tomorrow.
my first set up 2 years ago on 8s with 40mm geared motor and 2,40m sup, takuma v100 foil, 130kg all wet : no problem ( 250A pics through straight out no planning)
Additional photos, its just gorilla tape and I redid the front nozzle so not too bad. Also managed to run it in a bin today some interesting errors! I’m getting an abs over current at 165A but I’ve it set to 185A. Also on the vesc tool logs motor current only ever hits max of 149.78A. Battery in current only hits 120.58A max. Anyone any idea why?
Next video is from today with foil in a bucket of water. If I go from 0 to full on I get an Abs Overcurrent at 165A but the log from the VESC Tool never gets above 149A.
And this is a longer video of Efoil in Bucket but ramping slow and no abs limit. I hit 3000W at times - I think this should be enough to get foiling. Any tips greatly appreciated! VESC Tool Screen Record in Bucket
Sorted my ABS Overcurrent by increasing to 420A. Not happy about that setting so will gradually lower but it works.
When I increased to this though I blew my prop within 2 tries
