RolluS' Project: Skateboard of a future past (single wheel)

[RolluS]

Hello all,

I'm RolluS (real name Reynald), 35y.o from Paris,France.

I've bought a single wheel skateboard from an aliexpress seller some times ago:

It's basically a unicycle, but with a board instead of pedals, the riding position is like a snowboard.

This thing has a 500W 10" wheel, a 132Wh 60V Li-Ion battery, and a MicroWorks 30B controller. Max speed 25km/h, range 5-10km.
I was a little disappointed with the range, so I'm heavilly modding it to allow LiPo installation.

I disassembled it:

I decided to keep only the motor, controller, bluetooth audio module, and swap everything on a blank deck, with old school in mind:

Finally, after some cutting, drilling, screwing, getting a new tire/tube:

Then, I've got to install the batteries: two 8S2P 12mAh 2C MultiStar lipos, and that is the point when the project is actually:

Remaining:

- cuting the frame to allow room for batteries
- wiring the power cable/plugs, to allow serial discharging (16S2P), parallel charging (8S4P)

++

Reynald

[RolluS]

OK, so I've cut the frame to make room for batteries

Their still some room to clear:

We can see above and bellow that batteries don't sit comptly on the deck beause it is concave:

I will shave the concave part so the deck will be flat. I'm going to remove 1-2mm.
The deck is 7 ply, canadian mapple, I think I won't hurt more than a ply.

Any thoughts?

[timpee09]

they sold these with wooden boards also if i remember correctly...;)..

your idea for lifepo upgrade is cool x 2...leave space for the mainboard!

Wkr,

tim

[RolluS]

Thank you

I think those with wooden board have a large (read, not thin) wheel.

LiPo upgrade should give me about 50 km (31 mi.) range.

Here are the progress:

I needed a frame to make room for batteries:

 

I've cut the sides:

Jusque là ça marche bien! Alors on coupe...

 

I need to polish all his and put hardware (hinges, lock, etc..)

[smallexis]

I love you MOD and the tire is wonderfull. Hope to see the final result asap.

[RolluS]

Thank you for your interest @smallexis, it's always a pleasure and a motivation source to read comments like your

OK guys,
Here is some progress:

 

Need to finish nose and tail..

Here is the inside:

And the bottom, with the opening to access electronics:

Hardware is installed.
Electronics pending (need to lengten some cables)

 

[Cloud]

Man, this is great. You coukd start manufacturering your own brand of unicycles. Awesome, keep this up

[RolluS]

Thank you very much! I appreciate it.

That's a lot of time and a unique peace of art I think. I'm not an artist, but the work involved here is really too huge to make business with that I think.

[RolluS]

Finishing the nose...

 

Tadaaa!!

 

[Hunka Hunka Burning Love]

Hey @RolluS,  how's that one wheeled skateboard working out ?   Got any more videos of it in action? 

[RolluS]

Hi,

No, I've been quite busy the last few months. Unfortunatly, I haven't made any progress since summer.

[Hunka Hunka Burning Love]

Oh that's too bad.   I was hoping to see some new videos or developments with the skateboard. 

On a side note,  I wonder whether you or @MattJ could take that 10 inch wheel and make your own Gotway Mten EUC from MW parts.  I guess it would be tricky to source the correct pedal supports for a project like that though. . . 

[Rehab1]

@RolluS Awesome design and workmanship!! Well thought out!  Get er Done so we can see it in action!