So i was really lazy to make my own board, and decided to buy a used/demo version of elevate rocks inflatable board. The board is bigger than i expected but really good quality, it looks thick and not easy to break. I think it’s the perfect size to learn but the best thing is that it will be easy to fit everything in my small car !
Now i have to build a nice box/hatch 
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So, more and more using inflatabels, me too.
I bought also a prototype of an inflatabel from a new startup.
How you want to build the box?
I decide to print it. The box should fit exactly the hole and a bigger aluminium plate at the botton and a big on the top.
I dont know if it is a good way, but i try…
I think i will cunstruct inside something around the mastpostion perhaps some tubes that are connected to the top platte.
Also i think about a quick release for the mast…
Yes that’s a good way to do it, sure it will work but i think that aluminum plates are maybe too heavy…
I want something light, i will build my box with my CNC and EPS foam (+carbon fiber). I will work on the CAD this week-end and post it to show you. Also i will use solidworks to estimate the total weight to make a comparison with the aluminum plate solution.
I also think about and had a long discussion in the German forum about carbon.
First i want print 3D the border of my box and laminate it with 2 layers carbon inside and outside.
I also want take carbon bottom and top plate but the german peoples think i have a problem with carbon and electric inside…
I am not a specialist bit now i am worry about…
Well you just need to avoid contact between your wires and carbon. If everything is nicely insulated with shrink tube etc, there will be no problem
Other Problem, read this…
Nice water intake, avoid all trouble having electric pump.
Good work but this system will not work well.
Which one?
…
tp power 4070 and motor chief
Peter & Silvio had nice success with this setup so hopefully it will be okay. If not i will go for direct drive
I had also good success with it, even with 7 inch prop. My brother still runs it, third season still no crash:wink:
Direct drive, though is much more silent.
No problem with my tpmotor 4070 and chief 
And I was running 8s , high pitch prop FR and no current control so really not in the best config …
still has the highest top speed achived …
Really happy with my FR direct drive , but I was thinking redo this step up in 12s for fun … now that I have a good vesc
Its a high rpm setup and gearbox gets a lot of hot the problem starts inisde the pinions bearings and continue with the principal bearing, I will remove this parts for ceramic and cooper parts, I was riding this propulsion 4 months.
https://es.aliexpress.com/item/32970474698.html?spm=a2g0s.9042311.0.0.91d463c0MwsrmK
my advice direct system or 5870 tp power+ motor chief, more torque and less rpm.
Its my experience ok?
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Main bearing , pretty staff … and very hard to remove and put back in the gear holder , I don’t recommend to do that
https://www.123roulement.com/roulement-3002-ZZ-INA.php
Running 3200rpm max , about 60H not problem with the needles bearing so far
I took it a part because I glued the prop shaft and I had to heat it to take it off , and didn’t want to heat the bearing, but I shouldn’t have done that at the time …
I think the problem is the plastic inside the pinions, when this part is in bad condition, the system gets very hot and the main bearing is damaged, well, my idea is to change these plastic bearings and place the bronze bearings, I think which supports high temperatures and more rpm, I will test it soon and share, about the main bearing, I will try this ceramic link, its width of 9 mm. I will build a piece of aluminum to complete it. I love this propulsion for surfi, is smooth and powerful at the same time
https://www.aliexpress.com/item/6000-6001-6002-6003-6004-6005-6010-Full-Ceramic-Bearing-1-PC-Si3N4-Material-6000CE-All/32996720206.html?spm=a2g0s.9042311.0.0.5d9c63c0Pt0dB5
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check the value for Cr and Cor … vs the 6002
bronze bearings is a nice idea
Thanks for your comments guys. I think it will work, let’s see how long 
but your gearbox looks really nice after 60H @Alexandre
I have the 3 pignon version so i guess it will be less durable…
My flipsky 200A vesc is on his way, now i need to build the battery.
I found this spot welder on Aliexpress, do you think it’s worth it to buy something like this ? :
https://www.aliexpress.com/item/4000364151432.html?spm=a2g0s.8937460.0.0.6dcd2e0elIsT8h
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It’s been a while i didn’t post. I’m making slow progress… now i have everything i need for a 12S12P. And this came in the mail today, Kweld spotwelder :
First test gave me some really good results, it was worth the money compared to the chinese sunkko crap welder.
Now it’s time to build the battery
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Hello, It available for 30EUR for 90cm (70EUR for Anodiset). Asking yesterday.
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