I decided to make an electric longboard this year. Boosted Board has inspired me and it's such a nice electric longboard, but so expensive (like 1500€ for the 2000W model).
Before I start I will explain some things because I didn't really want to copy the Boosted Board design.
First of all, I wanted to make an Electric longboard as thin as possible, so I used separate Lipo cells and made a very thin battery pack (12mm) so people won't see it from the side that it's an Electric longboard.
The second thing is the power, I would like a longboard with a power between 1500W-2000W, The motor can handle 2220W but I use a 6S battery so the power will be a bit lower like 2000W max peak but that's really enough, trust me ;)
The other reason why I use a 6S battery is because once you go higher than 6S the price of the ESC is so much higher like double the price for 8S or 10S, Also charging a 6S battery is much more easy than a 10S.
If we talk about speed, I theoretically calculated the board at about 46km/h so I would practically reach about 40km/h. And in reality I have tested it on the smoothest road in our town and I can ride 42km/h max speed.
So on the most roads I can perfectly reach 40km/h which is really so amazingly fast.
The battery with 220Wh will give me a 14km ride.
The longboard I ride for a while is a Madrid Weezer and it isn't an expensive board (only 100€) but it has a bit of the looks of a boosted board.
In total I have spent like 300€ for every single part (except the longboard itself) to convert my longboard into an Electric longboard
I think you know enough information to start the explanation how I made my Electric longboard.
! Video's coming soon so stay tuned by this instructable or my youtube channel !
What do we need?
SK3 - 320Kv Motor: Hobbyking
You can use other motors too but I have calculated the speed and torque on this motor and it is the most powerfull in the 50mm diameter series and not very expensive (52€)
120A ESC: Hobbyking
This is a boat ESC and runs very smooth with no problems. You can also buy a program card for this ESC which I also did. You can change several things like acceleration, brake, cut off voltage,... -> Hobbyking
I bought 12 cells of these, so I can make a 6S2P battery pack, the cells are 5000mAh so a 6S2P will give me 22.2V and 10000mAh, enough to have fun long ride.
Transmitter and Receiver:Hobbyking
I used this controller because there are used a lot for electric longboards and there's a 3D printed version available which only has a throttle because you don't need a steering wheel on a longboard controller. BadWolf GT2B Case
So you need to unscrew the original controller and place all electrical components in the 3D printed model which is much more smaller. -> Step by step explaination
6S lipo charger:Hobbyking
Very nice charger 250W 10A so it will charge my battery in 1 hour! I know in the picture you can see I bought another charger but it's only 50W 5A charger, it was a very cheap one but it takes 5 hours to fully charge the battery so the 250W charger will be my next upgrade.
Very good connectors and the have a small lock which never came loose during a ride.
4mm Bullet connector:Ebay
this is to connect the ESC to the motor (ESC has standard no connectors so you need to solder them)
6S balance charger cable:Ebay
To charge the lipo battery pack you need 6S charging wire, this will balance and charge every cell perfectly.
Metal timing pulley 30T:Ebay
This is a 30 teeth pulley, 16mm wide (HTD5M serie)
(btw why buying expensive pulleys and belts on special sites like sdp/si when you also find them very cheap on ebay, but I have to say I had searched so fu*king much until I finally found the pulleys I needed)
Metal timing pulley 15T:Ebay
This is a 15 teeth pulley and has a 6mm bore which fits perfect on the motor shaft. (HTD5M serie)
Rubber timing belt 54T:Ebay
I bought 5 of these because if one should break I have some extra but until now no problems with my first belt!
If you want to calculate the center distance and other stuff very quickly -> Pulley/Belt Calculator (HTD5M serie)
You will need silicon wire to make your battery, this wire is very flex and can resist high temperatures so if you solder your wires the isolation won't melt. I used 10AWG but 12AWG is a bit smaller in diameter and will also be enough, so just saying I'm using pretty big wires but they won't overheat.
Longboard Madrid Weezer:EuroSkate
Make an aluminium motor Mount: Download my inventor design
Rubber sheet like 1mm thick
Bolts and Nuts