Ninja 250 "Clone" Made in China

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Feb 27 2022 6:13am

Elektrosherpa wrote:
Feb 25 2022 6:17am
The red cover of the ANT BMS-did you print that yourself?
Yeah I designed the enclosure then printed it on my printers
Elektrosherpa wrote:
Feb 25 2022 6:17am
I am asking, because the ANT BMS you recommended in my build thread was "naked"
(and that is what I need, because it must fit into the battery case).
Yep unfortunately the ANT doesn't come with an enclosure, so I had todesign my own :(
Elektrosherpa wrote:
Feb 25 2022 6:17am
By the way:
you do not seem to read in my thread anymore?
I have asked you a question there, about the App for the ANT BMS...
viewtopic.php?f=12&t=110352&p=1702592#p1702592
I don't have the answer to that because I live in China and we can't use the playstore here. :(
That s why I didn't answer, wouldn't want to pollute the thread with useless content :wink:
Sorry for the misunderstanding
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Mar 07 2022 10:56pm

Progress has been slowed a little bit, I broke my printer so I had to repair it first. Now everything's fixed and I can print again. :bigthumb:

I've been experimenting with the wrinkle paint and finally got some decent results. For that, I had to try printing with new materials. So far I was almost exclusively printing in PLA, but for this project I wanted a more durable material. It needs to resist the sun exposure, so that mens UV protection and high temperature resistance. I first tried polycarbonate, but it turns out it was impossible to print on my printer because I don't have an enclosure.

Then I learned about the existence of ASA, which is a plastic that is very good at resisting UV and also has a glass transition of aroung 95 degree celsius (PLA is only 55-60 degree celsius). This plastic printed fairly well.

I started experimenting on a little side project (a small high precision/very fast refresh rate scale). First designed it, then printed it with ASA:
IMG_20220303_203800.jpg
IMG_20220303_203800.jpg (235.54 KiB) Viewed 707 times
It turns out this material is very nice and easy to sand. So it was very easy to remove the print lines and make it look nice!
Then I spray painted with the wrinkle paint and put it in the oven for around 40-50 minutes.
It worked very well, the result was pretty satisfying:
IMG_20220302_211234.jpg
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IMG_20220304_232059.jpg (242.97 KiB) Viewed 707 times
So now I'm reprinting all the parts of the BMS box with this material. I've already printed the little cover of the BMS and got it painted:
IMG_20220307_235401.jpg
IMG_20220307_235401.jpg (3.71 MiB) Viewed 707 times
And also printed the last version of the enclosure:
IMG_20220308_002128.jpg
IMG_20220308_002128.jpg (2.59 MiB) Viewed 707 times
IMG_20220308_002210.jpg
IMG_20220308_002210.jpg (228.59 KiB) Viewed 707 times
The lid is currently being printed. Next step is to sand the whole thing to the best of my ability, and then it will be time for its final coats of paint.
I think the finish can be very nice if I don't mess up. :lol:
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

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tylerwatts   100 W

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Re: Ninja 250 "Clone" Made in China

Post by tylerwatts » Mar 08 2022 1:39pm

Awesome man! That wrinkle paint looks fantastic on the plastic parts!

cheers
Tyler


CONSIDERABLE SHOUTING   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by CONSIDERABLE SHOUTING » Mar 14 2022 10:15pm

Hey Dui, what vehicle did that LiFePO4 battery come from? Did you ever find out?

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Apr 21 2022 7:35am

CONSIDERABLE SHOUTING wrote:
Mar 14 2022 10:15pm
Hey Dui, what vehicle did that LiFePO4 battery come from? Did you ever find out?
I'm not so sure, there is a sticker on it saying "VTRUX".
My brief search on google got me there, apparently Jay Leno tried one:
https://www.youtube.com/watch?v=p5STy6HRZEQ

Seem like it is some kind of hybrid pickup truck, but I doubt they made as many as they expected. :lol:
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » May 12 2022 1:39am

Hi guys, 8)
It's been a while, but I've been in lockdown for the past two months already. Still am today while writing this, and still no idea when it's gonna end, if ever.
Anyway...

At least it's been a great opportunity to find more time to work on the bike, and the good news is that it's done, basically. I just have a few stuff I can't do during the lockdown, like... well riding it. :roll:

So first I painted, then baked the BMS enclosure, the wrinkle paint came out really nice but as it turns out it doesn't work very well with phone cameras, in real life it looks like a really nice aluminum casting:
IMG_20220313_012519.jpg
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Then the lid:
IMG_20220314_173443.jpg
IMG_20220314_173443.jpg (382.77 KiB) Viewed 446 times
A nice bead of silicone sealant before attaching the BMS box, hopefully for the last time:
IMG_20220314_214658.jpg
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IMG_20220314_233115.jpg
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Reinstalled the controller and all the power wiring:
IMG_20220318_233257.jpg
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Finally I put back all the fairings, the odometer and everything. Finally, done!...... Well that's what I thought.
Just one day later the BMS screen started acting up, then stopped working entirely. I narrowed it down to a defective wire.... Deep inside the BMS enclosure.
So I had to take everything apart once again. I'll spare you the pics, but you can easily guess that this hasn't been the happiest moment :lol:

Anyway, Now the screen is fixed, everything seems to work just fine, so I took it outside to make a few beauty shots:
IMG_20220322_171304.jpg
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Now I still have a few things to do:
-Get a new DCDC converter. I thought I had one spare but apparently it was broken, so I borrowed the current one from the red bike.
-Get a cable to connect the APT controller to my computer. I tried several cables and none seemed to work so far, so I'll order the official one and see if it makes any difference. Unfortunately I can't do any of those things before the lockdown is over and deliveries reopened...
-Close the lid of the battery box, but I need to make a few rides first to make sure everything is fine and nothing moves around too much inside the box before I definitely close it.

I can't tune the controller right now but it does work almost fine already. Aside form a lot of vibrations under 6kmh it seems to work pretty well. Right now it already pushes quite more than the sabvoton, but I expect it should be even better after at least making the hall sensor angle calibration procedure.
Anyway, 99% done!
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

SlowCo   10 MW

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Re: Ninja 250 "Clone" Made in China

Post by SlowCo » May 12 2022 5:25am

Beautiful work and what a great result! :bigthumb:

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tylerwatts   100 W

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Re: Ninja 250 "Clone" Made in China

Post by tylerwatts » May 12 2022 9:09am

Excellent progress. Sorry about lockdown, hopefully that is released soon!

cheers
Tyler


Albie72   1 W

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Re: Ninja 250 "Clone" Made in China

Post by Albie72 » Aug 01 2022 8:34pm

I have a Chinese electric motorcycle looks like a ducati a little it is supposed to have a 10000w hub motor with 72v 80a lithium but they put in a fardriver nd72360 controller that is max bus current 150a and max phase current 400a it's fun to drive but take off is a dog. Would a higher current controller do any thing or can I adjust it for better off the line

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Aug 01 2022 11:06pm

Albie72 wrote:
Aug 01 2022 8:34pm
I have a Chinese electric motorcycle looks like a ducati a little it is supposed to have a 10000w hub motor with 72v 80a lithium but they put in a fardriver nd72360 controller that is max bus current 150a and max phase current 400a it's fun to drive but take off is a dog. Would a higher current controller do any thing or can I adjust it for better off the line
It will all depend on your battery. If your motor is a QS 10 000Watts then it can take pretty much any controller, these motors can take more than 30KW no problem, so you probably won't ever have to worry about your motor.
You mentionned that your battery is a 80A but I believe you mean 80Ah, which is its capacity. You need to know what is its rated power, which is the maximum instant power it can deliver without cutting. Generally that is the BMS cutoff limit, maybe something like 150 or 200A since the manufacturer installed a 150A controller on your bike, but that's just a wild guess. You need to ask the manufacturer of your bike what is the maximum power output of your battery so you can choose a controller that matches it.

Basically you should not install a controller whose rating is superior to the battery's rating, so if you have a 300A battery then you can install a 250A controller but you can't install a 600A controller (unless it's a programmable unit, in which case you should tune down the power in the software so it limits itself to 300A). (please note that I'm talking about battery current, phase current only matter to the motor and since your motor is a 10KW then you don't need to worry about phase current, it should be able to take pretty much anything).

So, to clearly answer your question: yes, a higher current controller will give you more acceleration. But you need to make sure that the battery will not be the limit, otherwise you'll have to tune the controller down to protect the battery. Always try to make the battery the most powerful component of your build, whenever possible.
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

Albie72   1 W

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Re: Ninja 250 "Clone" Made in China

Post by Albie72 » Aug 02 2022 4:47am

Is there any way to find out if my motor really is a 10000w and any way to see if it is a 80 ah with out taking the battery apart or out the box

j bjork   100 kW

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Re: Ninja 250 "Clone" Made in China

Post by j bjork » Aug 02 2022 5:09am

You can take some measurements on the outside of the motor to get an idea, or take the rotor out and measure it.
(and compare to other, similar motors)

When you drain your battery, how many Ah do you get out of it? How many do you get in when you charge?
If you can charge around 80Ah, then you probably have 80Ah. If you can charge 50Ah, probably not..

Albie72   1 W

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Re: Ninja 250 "Clone" Made in China

Post by Albie72 » Aug 02 2022 10:01pm

My charger just has a green and red light on it

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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Aug 03 2022 1:12am

I suggest you create a specific thread for your issue, as it's the build thread part of the forum here.
You'll get more answers on the technical part of the forum. :wink:
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

Scootdan   10 W

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Re: Ninja 250 "Clone" Made in China

Post by Scootdan » Aug 04 2022 8:09pm

Hey Mr. Dui, I thought I read you needed a USB programming cable for your APT, and I just found my second one that was missing. So I was thinking I could send you these controllers and cables, if it is not too expensive. I would love to see them be well used and hopefully appreciated and also support your skilled and resourceful builds sir. At least you would have backup or two! Just checking if you might be interested sir. :thumb:
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Dui, ni shuo de dui   10 kW

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Re: Ninja 250 "Clone" Made in China

Post by Dui, ni shuo de dui » Aug 04 2022 8:58pm

Scootdan wrote:
Aug 04 2022 8:09pm
Hey Mr. Dui, I thought I read you needed a USB programming cable for your APT, and I just found my second one that was missing. So I was thinking I could send you these controllers and cables, if it is not too expensive. I would love to see them be well used and hopefully appreciated and also support your skilled and resourceful builds sir. At least you would have backup or two! Just checking if you might be interested sir. :thumb:
Wow, that would be absolutely awesome, how could I even say no ? :shock: :lol:
Then I would have to build something crazy, I'd have no excuse anymore now would I :lol: :roll:

Thanks for your kindness Dan, I can't believe how nice some people are, I don't even know what to say. Thank you!
:bolt: New Build in Progress: Electric Roadster, 30 000W Kelly KLS72701, 24S2P A123 cells :bolt:
viewtopic.php?f=12&t=109246

:bolt: My electric Ninja 250 clone: 16 000W Sabvoton 72200 Unlocked, 23S2P A123 cells : :bolt:
viewtopic.php?f=12&t=90032

:bolt: My electric Scooter: 16 000W Sabvoton 72200 Unlocked, 72V 20Ah 24S1P A123 cells: :bolt:
viewtopic.php?f=12&t=75912

Scootdan   10 W

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Re: Ninja 250 "Clone" Made in China

Post by Scootdan » Aug 05 2022 11:13pm

I can dig it sir! Just pm me your address and I will see if it is not too expensive. It would be great to make it happen this weekend. Man, I am having so much fun on my scoot now, these Bluetooth adjustable controllers are so cool. It will be so awesome to see what you do with these monster controllers Dui! :bigthumb:

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