EmanuelMellblom.se

Electric longboard build

I'm currently building an electric longboard, I will be posting blogposts here during the build procces the first one is going to be about the electronics of the board, mainly the batterys that i choosed and a few other things.

Wiring diagram

This is the wiring diagram of my electric longboard. I have got the batterys, connectors, 12awg cable and the charger from hobbyking in the UK. I have also got the heat shrink tubing and lipo monitor from wish.com (China). I'm currently waiting for the motor, motormount, belt, pullys, remotecontrol and VESC which I have orderd from alienpowersystem.com also in the UK, they have excellent custumer support and I highly reccomend ordering from them if you live in Europe. The next order that I make will also be from alienpowersystem.com and will contain some longboard parts like trucks, bearings wheels and so on. The next blog update will involve the parts i've get during the comming month.

First parts shipment

This is the first shipment of parts that I received for my DIY electric longboard. The parts comes from alienpowersystem.com and hobbyking.
The parts is:
Motor: ailien powersystems 6364 190kv.
Batterys: 2x Turnigy 3s 5000mah 40-50c lipo's.
Battery charger: Turnigy B6, 5amp.
Motor mounting kit: alien drive systems.
Mix of cables and connectors: Hobbyking.
VESC esc: Alien power systems, no pre loaded firmware.
Remote controller kit: Ailien power systems.

Stay tuned for part 2 where I will make the electronic enclosures.

Designing and building electronics enclosures

This video shows the process of designing, 3d printing and post processing of the electronic enclosures for my DIY electric longboard. I used Autodesk 123d to design the parts, then the parts was printed in PLA plastic on my Wanhao Duplicator i3 V2. I then used superglue and a technique called friction welding where a dermel type tool is used together with PLA plastic to bond the parts together. The parts was then putty by using regular construction putty, but i guess any putty will do. The final touch was to spray paint the parts in a black color. Holes and cutouts for connectors will be made later. I will also add a hinge to the hatch and add weather stripping along the edges.

Materials used:
PLA filament - 3dprima.com
SuperGlue - Loctite super glue liquid
Putty - Byggmax Byggspackel
Paint - matt black spray paint
Tools used:
- Dremel type tool
- Sanding machine
- Hot air gun
- Wanhao duplicator i3 V2
The parts I made can be found on the following links:
VESC enclosure
Battery and electronics enclosure

Second shipment of parts

This video shows the second and last shipment of parts that I ordered for my DIY electric longboard build.

The parts showed in this video are the following.
* Charger power supply: wish.com
* JST-XH connector 2x3s to 6s: wish.com
* Skate-tool: wish.com
* Loctite: Locale hardware store
* Cable protector: Locale hardware store
* XT60 male connectors 5pcs: wish.com
* 6s JST-XH balance extension cable: wish.com
* Trucks: alienpowersystem.com
* Wheels: alienpowersystem.com
* Bearings and spacers: alienpowersystem.com
* Antispark power switch: alienpowersystem.com
* Battery gauge board: alienpowersystem.com

A complete partslist with prices and links can be found on the following link:
Stay tuned for part 4 where I will install the drivetrain.

Board speed calculator

I wrote a small calculator that lets you calculate a potential speed for your board
The calculator can be used as a help when deciding gear ratios in yor drivetrain
Allthough the calculator does not take the weight of the rider into account so the calculated speed might
be a bit optimistic.

The calculator can be found on the following link

Installing motor and VESC

In this video I show how I mounted the motor and drivetrain to the board.
I also show how I solders the connectors to the VESC and mounted it in its enclosure.
In the next video I will show how I mount the batteries and electronics in the large enclosure.

Completing the build

This is the fifth and last video of my electric longboard build showing me completing the board.
I have now been riding the board to school for about 5 months and been putting around 400-500 km on it and it have been working very
well without any failures. I tested the original power supply for the charter which would not work properly so I bought a new one of higher quality. I would also recommend buying another charger then the one that I have which is a bit weak.
One upgrade Im planning for next year is to change the batteries to an own built 18650 pack with a BMS, for increased range and speed. The specs are in the video.

Emanuel Mellblom