HubMotorBoard: The Beginnings

I’ve decided to start a blog about this project. I aim to show all the ingenuity that went into this board (as sort of a resume but cooler) as well as help others if they want to make a board like mine. The basic goal is to make a long range board using a hub motor. Electric longboards are dead useful, powerful enough to haul me far into Boston and back, yet small enough to put under a chair in lecture. The board becomes even more powerful if used with the subway and commuter rail, allowing me to get pretty much anywhere I need without having to walk. It’s about 2/3 the speed of a bike, but a 1/10th the size. Through electrically less efficient and less torquey, hub motors provide several advantages over a traditional belt drive setup such as being an entirely self contained setup and being somewhat water and crap proof. Plus they’re just cool- who puts motors INSIDE wheels???

This will be my third board. Here was my first. It featured a direct drive 236kv Turnigy Aerodrive motor modified, not rewound for about 80Kv.

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The innards.
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The motor eventually died, I’m pretty sure it shorted out, honestly I’m not sure. Its coggin’ like its shorted but all the phases have the same resistance.
So, board V2.

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This board was sold for $500. It was good but kinda exposed for what I wanted, and totally not waterproof. I also wanted bigger wheels and a shorter board.
So, on to the new one. Here is the cad I presented to Baker Exec, who will be funding the project.

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A cutaway view. This is with the same size motor as V1. In the actual board I’ll be doing with a bigger one, the 6374 instead of the 5065. I’ll update the CAD when it comes so the dimensions are exactly right.
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