Redstar | DIY onewheel

Cool, that makes sense. :+1:

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This is actually really cool. For 400€ it’s a great price. I would live to make one of these someday. I would want to throw a huge battery in there for 30+mile range. Also I would need to go faster the 16kph. Is there other hub motors that have a much higher kv out there?

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I bet the motor could be rewired for wye if it is delta.

The larger diameter hub motors probably have higher top speed, but low KV is ok you just have to use 12S at least.

I did send a message to PEI pei asking to confirm the Kv for the phub-188. We shouldn’t have to approximate it.

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If he is getting 16kph on 10s 12s will get what maybe 20kph?

16km/h * 12S / 10S = 19.2km/h

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What if you went to 20S using one of these

That should get you to 32km/h (19.8mph) on the same motor.

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I’d be nice to know that wire is used in the stator. Also from looking at the windings we could determine the Kv maybe.

I’m sure the insulation breakdown isn’t gonna be a problem under 100v, but peace of mind would be good.

Pei pei read my question about the Kv and did not answer. What a great mystery.

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This is awesome good job dude! Might be a fun future project :thinking::relieved: Any idea which replacement motor you want to get?

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There’s no reason other than PeiPei being difficult that this motor couldn’t have higher kV as well. Perhaps I could change the motor termination to delta if it’s wye now, going to 12s with that would net me ~32 kph which would be enough. I’d just hate to take the motor apart and possibly break it.

I have around 25 km (~15.5 freedom units) of range, that would go up to 30 or so with the 12s3p. There’s space to extend the battery downwards like the onewheel extra packs do, but would require modifying the frame. If you like massive range then that’s certainly possible!

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Yes, that’s my experience with them aswell. I got bunch of responses from them but they didn’t actually contain any information… It’s a shame since all things considered this feels like a good motor, smooth and solidly built, I’ve had no issues with it. Just by listing KV values and maybe even giving some option would surely get them more business.

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You should make some onewheel frame kits in the future and sell them.to people like me!

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Yes pls

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This, or something like it is interesting, certainly easier than rewinding or chopping up the motor. I’d have to redesign the electronics box and spend some money, and I’d likely wait until those are a bit more proven since I’d really hate for it to cut out at 30 kph… A 18S2P pack sounds pretty zwanky, I’d certainly like to make one and it’d just about fit inside the current frame if I get rid of the BMS…

I’ll get around to getting one of those or messing with the motor eventually.

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It would be cool! Sadly this current design is too work intensive for me to make especialliy as I actually don’t own the milling machine needed for this. It could be simplified a lot by making the ends square and getting them lasercut, but that still leaves the machined wheel holders :thinking:

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This is super cool, I have wanted to make one for a while, will bookmark this for sure

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Peipei scooter has some interesting products and ok prices besides shipping. God damn they fucking suck though.

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36v 600w

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kV: yes

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This gets even funnier when you realize that just like volts and watts above, the spelling is wrong — because kV is kilovolts, not Kv like motor rpm/volt :rofl:

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I would assume it’s just a language barrier thing again. Would be nice to find someone who could sort things out in mandarin (I guess).

@Jopj
What is this VESC balancing app thing about? I suppose I missed something, is there a build in Onewheel implementation for the VESC planed for the near future or something?

BTW the sealing seam on your printed part looks very nice how you done that?