diy electric one-wheeled vehicle

I made a new, stronger spacer for the rubber tyre. My new plan for this motor is to build an electric wheelbarrow.

The scooter is still a prototype, but I already had my first flat tire. I fitted the hub motor with an airless tire to ensure this would not happen again. But the hub had to be turned down in diameter to match the tire.

To ensure that the tire does not slip off during a ride, I made a 3d-printed rim extension.  

Almost ready for the summer... 

After some very unsuccessful attempts to drive the one well, I had to do admit that I am not a one-wheel driver.  So I did the most reasonable thing and bolted it to a kid's scooter. More updates will follow... 😁

I 3D-printed two batterie holders and made a quick "sanity check" of the drivetrain functions. 

The batterie holders are a modified version of this design on Thingiverse: https://www.thingiverse.com/thing:2976266

I build the frame out of scrap metal and mounted the electronics on the underside with zip-ties and Kapton-tape. 

In theory, it would be ready to ride, but it's raining outside and I think it's fair to say that my assembly is not watertight yet. 😁 

The electronics are ready... 

...now it's time to build the mechanical assembly. 

Thanks to a quick google search, I got the basic function to work.  On the scope, you can see the control voltage for the motor controller. I used the code from https://github.com/fungineers-youtube/DIY-Onewheel-Arduino-Code and modified it. 

The wheel hub motor changes speed according to the gyro input angle. (and makes a very satisfying sound)