Yes. Finally the build of my electric surfboard is done and working.
It still needs a lot of fine tuning on the ESC’s
Jets used (2) are from Mark. See YOUNGSTERS JETS on YT.
Board is a cut down Vision Softlite – 8’0 softtop surfboard
Motors used are Surpass hobby 56102 600KV Brushless Motor
ESC’s are from Flier. Model: ESC 240 16S
Remote is a Maytech V2 (Fully Waterproof Remote Control).
Two waterproof 12 / 24 volt 200 amp circuit breakers.
LiPo’s are 6S Zippy 4500 mAh (40C). I’m using 2 banks of 3 lipos in parallel.
The jets / motors are (should be) doing about 13440 RPM at WOT (600*22.4)
(That is when running free…)
The most difficult part of the build by far was getting the battery and motor cover watertight.
I was using two really nice marine hatches, but they were leaking so much, and it was impossible to stop this )-:
Now I’m using a cut down pelican case as motor cover (nice to keep the towels in too), and a PVC drainage lid as battery cover. The pelican case will be changed to the PVC drainage lid system later this summer.
My dad and I already started on building a new version of the board with integrated hatches.
This new board will be made from wood. The weight of the new wooden board itself will be around 7 KG, and have a partly removable deck for access to the two jets and battery’s.
Yes I know. I did some 12S test, and boy… I was scared!
My dad and I are building a 2nd board at this moment. It’s almost done, and it will use a DIY 12S12P setup
Soon more!!!
Nicee
When you build your own electric skateboard, you can choose your battery’s total voltage. The usual choice is 6S 22.2 volts, 8S 29.2 volts, 10S 37 volts and the most is a 12S 42 volts.
You can add more amps by using a better, more powerful battery. The most common rating for a standard motor has a maximum output per motor of 80 amps. You may not need this much on an electric board. This is a lot more than what riders need and usually, this will only leave you off your board and on the floor.
A set up with bigger motors and stronger batteries will give you more power so you can get higher wattage out of your motors. And although this is a very powerful motor, you might only injure yourself.
Here is a short video of me running the new board with 12S12P.
The impellers used are a test version. Unfortunately the cavitate for me when running at WOT.
The original impellers do not have this problem, and I will get some new video with the next run soon.
Finally we managed to get some more testing done with our DIY jet board.
The ESC’s are set to 70% power output.
We still have some cavitation problems, but only in rough conditions.
Another small issue is with the BMS FET’s heating up too much, however this should be an easy fix.
Hi how do you think you will get past the cavitation issue. The board I plan is very similar to yours but It has a very flat surface. Is there something that you can do with fins to help?
I am very much a noob to jets so this might be wrong of me but having a long intake would surely be a dissandvantage because of weight and load to pull it from a greater distance?
I do like the scoop idea though
