I've been working with electric bikes for almost 3 years now and as I was browsing my favorite site looking for new ideas I stumbled upon a electric mountain board and started doing research. I started becoming more and more interested in working with rc motors and finally took the plunge making one for myself.
Parts[edit | edit source]
Board: MBS Comp 95x from MBS Mountainboards.
Motor: Turnigy SK3 6364 from AsiaTees
Sprockets : Scooter sprocket and Motor Sprocket from Electric Scooter Parts
Aluminum pieces: from the scrap yard
The batteries, controller, and throttle were all ordered from AsiaTees
Batteries: Two 22.2v 5Ah lipo batteries.
Controller: 150amp car ESC
Throttle: Wireless 2.4 ghz
Other parts: Wire, electrical tape, wire connectors, nuts and bolts, zip ties, tie down straps.
How to Build[edit | edit source]
Gather your needed parts and supplies. Most important determine which motor you want and what board you want to use. Also you will need these tools. Tools Used: Socket set, Sawhorses, Hacksaw (or equivalent), Hammer, Adjustable wrenches, Hex key wrenches, Pliers, Clamps, Drill and bits, Grinder ( or equivalent), Metal files, Wire stripper, Chain breaker, soldering iron.
Went to the scrap yard and found some aluminum L-channel. This is what I used to make motor mount/bracket piece form.
I measured, cut and drilled the holes for the mount using the truck as your template since it will be bolted to the truck using the pre-existing brake mounting holes.
I also cut a v out of the center to allow for the mount to sit flush and allow for side to side movement of the truck.
Using pieces cut from the aluminum, a piece scavenged from another project I was able to come up with this mount. ( This will be different for everyone ) Once the mount was made I mounted the motor using the mounting screws that were provided.
Using the brake disc provided with the mountain board as a mount for the drive sprocket I drilled the holes and bolted it up making sure there was enough space for the chain to clear.
After I mounted the drive sprocket to the wheel I installed the motor side sprocket and the chain. ( NOTE* You need to grind down a flat spot on the motor shaft so that the set screw has a flat surface to lock down on.) Also check for chain alignment before tightening down the set screw.
I mounted the controller using industrial 3m velcro as well as the receiver for the wireless remote.
After getting everything mounted and ready I hooked up the batteries in parallel to give me 22.2v 10ah and used Velcro strapping to hold it to the board.
Costs[edit | edit source]
Material | Cost ($) | Quantity | Total ($) |
---|---|---|---|
Mountain Board | 369.99 | 1 | 369.99 |
Turnigy SK3 6364 | 67.31 + shipping | 1 | 79.24 |
Motor sprockets | 9.95 | 1 | 9.95 |
Drive sprockets | 15.95 | 1 | 15.95 |
Motor Controller | 62.55 | 1 | 73.55 |
Chain | 11.22 | 1 | 11.22 |
Aluminium L-Channel | 13.56 | 1 | 13.56 |
Wireless Controller 2.4ghz | 19.70 | 1 | 25.89 |
Turnigy 22.2v Lipo | 46.66 | 2 | 85.32 |
TOTAL COST | 684.67 |