Just finished a setup for a friend. Axis alloy mast, Flipsky 6384, 75200 esc and two 10S3P BAK 45 packs. Meant as an efoil for learning on a 125L wing board with the motor at 2/3 of the way down the 75cm mast.
As he improves and if he wants to we can spin the mast around and re route the cables so that the motor is 25cm below the board instead of 50cm.
Box with batteries will sit behind his back foot.
10S decision based a little on past experience that with the 140kv motor and twin regular Foil Drive black props the speed available is more than most people really feel comfortable at anyway.
Had an acetal plate machined by PCBWay, all cut to shape and pre-tapped to accept four screws to secure it to the mast and to accept the cable clamp.
Really happy with the way it turned out, the cable exiting the mast has always been the weak link, prone to having cable damage and looked amateur.
A lot of work to get it all right, he’s a good mate 
Also tried to up my game a little with the battery building on this one. Printed shallow trays and sat the welded completed batteries in the tray and covered the terminals with silicone. After it set, just trimmed back with scissors before wrapping. Hopefully another layer of protection against any moisture in the box or even a more serious box flooding.
My experience with making setups for friends is that with the best will in the world they aren’t as fastidious about moisture, cables stuck in the seal of the lid etc etc.
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Double strips in the area with high current flow, nice attention to detail! 
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I’m doing a build for a Freind on his Ali axis mast would you share the pod and mast plate files please
Astan
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About mast parts, interested me too! Tnks
Very Nice, that is a very clean setup! A few questions if you don’t mind-
- Where do you get the copper buss bars from?
- What silicone did you use?
- Why have the mast plate machined, can it be 3d printed instead?
- For the pod to mast connection, is it just crossed drilled through the mast with screw and nut?
Thanks for any info, I have noticed more of your designs lately and and they look great and seem to function well.
If you’re in the USA, try @DIY500AMP.COM, he has the copper goods and lots of high power cells too
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- Where do you get the copper buss bars from?
Peng Chen Battery Production Store on Aliexpress. Can make any strip you need - the one I used is the 3P misaligned. Just message them, bit slow to respond but very helpful and great product
- What silicone did you use?
Pinkysil - pretty standard modelling two part silicone.
- Why have the mast plate machined, can it be 3d printed instead?
105kg guy with a big foil generates huge compressive load on the plate between mast and board. Also acetal can be very effectively tapped, and I love the material!
You could print it but making setups for friends I want max reliability as the priority.
- For the pod to mast connection, is it just crossed drilled through the mast with screw and nut?
Yes
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Tnks for the links! i will try to use soon
