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


RolluS

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Posted

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:

944001_10209388946545322_2506292098363841007_n.jpg

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:

IMG_20160517_192207.jpg

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

IMG_20160520_184754.jpg

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

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

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Remaining:

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

++

Reynald

Posted

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

c7c77dac083f78eb402ade594a53b730.jpg6126af3dce913c3851d0adfc3c5ded1c.jpgb1c2e86a0dececa8f7e8f43e2f4bbcab.jpg2a28349467654756cdbb24e3c05a77dd.jpg

Their still some room to clear:7b6fa0126db389a54b30ad5076977fd6.jpg195ceca9ca5d70b1744433beae5e3d78.jpg

We can see above and bellow that batteries don't sit comptly on the deck beause it is concave:becaf5d8e01624cb715e8aa9a58296f4.jpg308aa2be15e82ab34708548381fd89ab.jpg12616ad9d39a765ee4858e85da7e3f42.jpg

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?

Posted

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

Posted

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:

 

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I've cut the sides:

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

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

Posted

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

  • 2 weeks later...
Posted

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:

b988f186f0aeac92ae3a9505589fb290.jpgb67eb256ae1a79d0102bfce3caac9ac1.jpg4aa567dc11c74c0fa83b3ef30fd223df.jpgab048800bee930ba3638459bbe83dcfc.jpg

 

Need to finish nose and tail..

fa4701d981aa4cffcb82f639faf38cb0.jpg5e50bd4534a6c1fca50c057bd82f1c6f.jpg

Here is the inside:

3d46ea2a4a34d9697f09f126e56f24b3.jpgef2e6c1cb56a94510201e724de2a6817.jpg

And the bottom, with the opening to access electronics:

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

 

Posted

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

Posted

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.

  • 4 months later...
Posted

Hi,

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

Posted

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. . . 

Posted

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

 

IMG_0435.JPG

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