Thanks Joka .The mast faring is printed with ABS and is a slide in design so seems pretty strong but I will have to keep an eye out for that!
This is a really well thought out build. Thanks for sharing all of the details.
Wow PF, that’s some impressive attention to detail and huge amount of work to get it all so polished.
Interesting that the shape for the cable fairing you ended up with is so similar to the profile of the Axis alloy mast.
Well done !
Getting to the point of going for internal cable with mini pod makes a huge difference
Thanks Jonathan. I 3D scanned the mast aerofoil design and basically just stretched it. I figured axis would of done the RnD so hopefully my stretching it at the right place should allow it to continue doing its job.
I’ve moved on from the Axis alloy mast despite the elegance of internal cable. Wanted the stiffness of carbon mast and ended up going for the One Axis compatible mast
I’m less than 70kg, can only imagine how wobbly it would feel at 120!
For those looking at having a go at building there own battery I found ludwig_bre has done a great job with his youtube video https://foil.zone/t/efoil-battery-build-video-tutorial/18891. If you happen to get the 75200 standard ESV but want the bluetooth connectivity then I found this thread https://forum.esk8.news/t/usb-c-to-vesc-can-forward-adapter-cheap-and-diy/79789 very handy and it also provides information on how to add an SDcard module for logging.
I really wanted to use a PropellerKing Triniity NXT however the cost difference and shipping to Australia was just too much. Also, if I needed replacement blades it just was not cost effective. Maybe in the future the AUD with get stronger and that will be a possibility. For those in Australia who want a no fuss metal Prop while expensive its hard to look past the Foil Drive Prop so I made an adapter plate so it can be mounted on the Flipsky waterproof 6384.
I will also upload the files for the snap lid latch securing brackets.
and strap slimline that you can use with a GRUNT 25mm x 80cm Extra Wide Versa Strap for $8 AUD from Bunnings and water resistant mounting tape also available from Bunnings if in Australia.
I forgot to add the 3M dual lock tape to the list which i use as the primary mount tape which you can get 1M for the 1 inch wide clear for $16 AUD.
I also have an enclosure to mount an ESP32 C3 with the required CAN board and SD board with a TPU cover if anyone is interested.
and a case for the Flipsky BT board
I will aim to upload the files soon and add them. message me otherwise. Apoligies this is coming out rather disjointed I am trying to rember back as I was to lazy to blog as I went along.
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First of all, I have great respect for your work. Everything is very well thought out. Normally, you only find beginners who want to get on the water quickly, easily, and cheaply. Like Markus, you really put some thought into it and developed a cool solution.
I myself use dozens of DIY Vesc Express with the ESp32 and CAN module. The functionality for the price and the convenience are just awesome. There’s no need to buy a Bluetooth module for €15.
If you don’t have an infinite number of devices on the CAN bus, this might not be a bad option. This way, you can also use Bluetooth.
2 Likes
Awesome build! Do you think you could upload the print files. Does the adapter hub you made work for the new flipsky 6384 motor? Have been having trouble finding prop mounts for the new motor. Thanks so much!
It works for the short shaft 6384 old waterproof flipsky motor.6384 waterproof. I will endeavour to upload them today.
Just saw the change with the extruded part. I should be able to modify mine easy enough if needed, would just need the dimensions for the raised part and the hole locations.
I have uploaded the .STL files.
FlipSky 6384 Adapter plate for Foil Drive prop
latch lock for battery box
Strap mount for battery box
Box for DIY logger ESP32, CAN, SD card for VESC
box with snap lid for FlipSky transmitter for use with remote
Fairings and cable holder for AXIS 19mm mast
If you would like to modify any please message me and I will send you a workable model.
3 Likes
Hi Phat foiler,
You’ve done a great job on your build. i’m also in Perth WA, I have built a similar setup but without vesc Im running a Maytech 160amp ESC and running Molicel P50 21700 in 12s configuration, but I’ve ran into a problem were motor cuts out when i go over half throttle. Ive worked out theres too much draw from batteries. Mine is intergrated inside my appletree board. I think I may need to change ESC to vesc for programmability but i have no idea how to program them I tried once and failed, could you help me with settings needed with vesc?
regards Astan
Hey Astan,
That sounds annoying! Hmm 12s how many p? those cells should not be having any issues with current draw maybe a bottle neck somewhere?. I can try and help with the VESC programming not an expert but seemed to get mine going ok. What size motor are you using ?
First of thanks for replying I appreciate your time mate.
It worked fine for a while but for some reason last two times it’s failing. AI says it’s the batteries I’ve used can’t handle the draw. And it says I need to use P45 cells.
Battery is molicel 12s 3p
Motor is flipsky 140kv 6384 with 2 bladed prop from flipsky.
ESC is maytech 160amp waterproof esc
Built into a 80l apple tree board works great no drag apart from esc is sitting under neath in water for cooling.
I would prefer a vesc so I could reduce amps and try and get more run time like foil drive plus I would install into board so to have zero drag and then I will drill out this Armstrong mast and install cables internally. That’s the end goal. But the vesc stumps me. Would be keen to exchange numbers to chat on msg or what’s app?
You may like this boogie design. I personally think tow boogie is the way to go , nothing on your foil and learn how to pump more run time and freedom on the waves.
A Tow boogie was going to be my next project… well I have a few on the go but it is on the list. I love the design did you make that yourself? I will reach out on whats app so we don’t hijack the build thread.
@Airtimeasto love the boggie design. does it self-right? do you have any files to share or dimensions/volume? Thanks!
I don’t get that AI says it’s a battery issue… so are you running P50B Molicels currently ? They are 5000mAH and 60 amp.
My guess would be the esc not the battery. The Flipsky XCross 160A does a very similar thing with cutout.
There is a waterproof Sequre 200A and they seem to be really good from all reports. Easy to program. I just bought the 14200 non waterproof to try out. All my experience with the XCross shows that above about 2000W they cut out.
That exposed ESC will not survive for long, especially not in sea water. I fried so many (v)escs over time, most of them because of water ingress, even fresh water kills them. I you replace the esc I sugghest to put it inside the battery cavity or in a box under the mast. Cooling needs to be addressed.
Agree, far better to enclose the esc in a sealed box - just seeking something like for like with what the guy already has. This is totally encapsulated and designed to run in water, Tue main issue I could see would be water creeping in between the epoxy and the cable sheath if the silicone sheath doesn’t bond properly to the epoxy.
Does that Sequre enclosure seem any better. Doing a build based around this sort of exposed esc. But might add a silicone around that if they fail that easily.
I’ve checked battery to see if there’s any corrosion on it and nothing. I’ve plugged into program card again to check if throttle was set to soft and low voltage cut off was set to 3.2v so I’ve now changed that to 3.0v and tested with pressure on motor seems better but will only know when get in water.
I have a 150amp 6.8 mini vesc from flipsky that I want to try with the 6374 motor to see how it goes and play with vesc programming.
As for esc out side these esc’s are fully potted in epoxy I’ve been running them for a few months now I wash in fresh water and spray Lano spray and corrosion X every ride. I can’t see how the water will get into them?