How to convert a Car Alternator into a FULL BLDC Motor with Hall Sensors and Magnets (with VESC) 

Well done. Giving you a thumb up. I will point out a couple of things, though. A donut magnet in place of the rotor winding, with the "claw" pole pieces retained, is very simple and will produce less cogging than bar magnets. The only problem is magnets of that type and size are expensive and dangerous to work with. A 3D printed rotor with bar magnets is possibly a bit less efficient and more labor intensive but cheaper. Hall sensors blowing is caused by the controller. For a DIY controller you can add a resistor and capacitor for protection, and maybe a diode. I use commercially made controllers, mostly Kelly pure sine wave controllers because unlike Curtis controllers, they are user programmable, like your VESC unit, but much, much cheaper. A spin test without a load is of limited value. It only proves that the motor will turn. Connect the motor to a quantifiable load, then compare output mechanical power to input electrical power, to measure your efficiency and as a tool for tweaking the firmware. A lot of guys who are only interested in producing content, are hooking ebike controllers or drone controllers or homebrew controllers with only three MOSFET devices as finals, and a battery to the field windings, and calling it a BLDC motor conversion, which is of course a big fat lie. Congratulations on turning an alternator into a real BLDC motor. And as a practical device goes, it is really stupid to not go with permanent magnets and Hall sensors for commutation, anyway. Looking forward to seeing your load test, and installation in a working project.

Proud of you buddy. Create your reality. All is good!

OOOOOOOOH YEAH!! NEW UPLOAD!!!!

Nice Work Amigo 100% original BLDC Neodinium

Well, i loved the entire video, the rotor build process and the axle milling I think that this PM alternator would be nice to see into a dirt bike

Nice work mate loved it!!

What an awesome channel to stumble upon, subscribed!!

great project, congratulations. I recommend that you also install a 10k thermistor inside the motor to check motor temperatures

interesante tu trabajo, congratulations!!!. soy ingeniero electromecanico desde el año 93. gracias por el video.

hi awesome project well done .one minor detail if you swap the hex head bolt on the drive sprocket for a grub screw it might help to reduce the vibration

Just replace the coil of the rotor with a magnet like those of loud speakers but be careful they are made ceramics so at high rpm they shatters

Привет! Очень важный совет для получения полной мощности и для правильной работы мотора: необходимо размещать магниты как можно ближе друг к другу. В идеале между магнитами вообще не должно быть зазоров, но это, обычно, не возможно.

Excellent video friend I would like to see a test that is not in basic but moving something and how many rpm, maximum voltage and maximum amperage

could you record a video showing how to connect a 12 pole alternator to a 350 watts 36 to 48 volts 17 Am controller?

Hmm what's the kv of this? Looking for a 100-50 kv range motor...

Joder qué acentazo español! Grande!

Just a general question from a novice. How do you separate +ve and -ve from the Alternator coil, As there are three AC terminals coming out of the Alternator coil? To generate AC current and run other devices from Alternator you have to have +ve and -ve poles when you remove brush and stator coil where were you getting your -ve because all three poles on Alternator coils are (3 phase) +ve

So my motor has 30 poles. That means 8 degree??

congratulations, an excellent video. Could you tell me what 3D machine model you are using to make the rotor. success and many blessings colleague 🙏

Hi im facing problem with bldc can you help

don't you worry about it overheating? pla will get hot and thosemagnets will go flying out.

great job

hi, thanks for sharing. good job. keep going. can you please share the 3D model?

Great work, you can please measure the rms voltage produced in a single phase of this modified alternator at 3000 rpm without load, or any rpm that you can test. Thanks.

Hello Do you have a 3d print file of the pla rotor you used in this project? Could you just share?

nice mod is that part printed from pla? how it holds dont you think it would fail strip or crack from torque load if you put it like on a bike or cart? also from heat?

Can you please explain why to use hall sensors Can't we directly give power

I also wonder if the alternator could be ran in FOC mode, just to compare the noises while spinning at no load

Awesome work bro. I wish you could make me a e-bike 1000 w axle. I have a fat wheel ebike 1000 watt hub with a broken accent it would be Joy. Anyway nice work on converting the alternator I want to also make a e-bike from a car alternator

Do you know if that ESC uese a Half H bridge or a Full H bridge?

Btw, the word "iskra" is Slovak for "spark"

Great build. Do you have test results on a table, ie, volts, current and rpm? I want to know the expected torque if I build with similar parts so that I can design a gear reduction for my application. Also, interested in the power draw at 25%,50%,75% and 100%. Keep up the great work

Vives en España?

Buenisimo...!!! Lo has llegado probado en un vehiculo?

Hello, Hall sensors need to be located somehow relative to the windings? Is it enough just to have an angle between them?

Very nice. I liked this video you are a very smart young boy. My suggestion is to make a EV bike with this motor. You will have a ton of torque at your disposal. Well done.

Good i like it

That 3d printed rotor held? What material did you use?

Magnets will loose its strength when heated, so bldc is a myth. It won't work for a long period. Heat generated in air gap and rotor will reduce the flux density of the material.

Any idea of the power produced? I want to build a e scooter or e Motorcycle, with atleast 3-5kwh motor, running at 60-96v , kinda braud range, but I want lots of power, and run low current, atleast 60-72v nominal , the current should not be too high, with peak power about 2x nominal, I'd like about 3-5kw to be around 50-70% throttle, with a average, or nominal speed about 60kph, and potentially 2x that full throttle, now it's a matter of making it happen! Put all that in a supermoto styled bike,

This is great! - just a small point - the audio levels between some of your narration and the music is different. You could try to pass the audio channel through an Audio Normaliser or compressor/expander - if you look at the audio waveform in your audio editor you will see the variation.

Hi... why you decide to convert to a FULLL BLDC ? have any significant difference into power and torque in this new version ?

Very nice s Bro 🎉🎉🎉

great video, thanks, I left a like. can you kindly explain to me the advantages of having hall sensors?

Kannst du mir so einen Motor bauen der 220v bringt ich zahle du baust Primat nur für mein Garten.

What is the song ? Great video, very inspirational.

Is it able to run backwards?

Intelligent

How did you make the rotors? What is it made of?

note that your work could work under small loads and etc, since your rotor is printed in PLASTIC, it will not withstand well THERMAL AND MECHANICAL stress, try with higher load and working time

Hello bro, can I buying your DC electric motor? I'm from 🇵🇭

Chế Tuyệt vời quá 👍

good job haw many watts this motor and lod amps

Estaba pensando armar eso desde hace varios años, desde que empezo la pandemia deje de lado, estoy buscando obtener 2kw mas o menos no se cuantos obtuviste con ese motor 🤔🤔🤔🤔

Show diagram👈👈👈

Veg good

Start converting all go-carts/tuktuks with your electric motors, sell it to these companies first. Then convert all vehicles with combustion engines with larger electric motors.

👍👍👍

How much Amps and voltage and kw please

Don’t wear long sleeve shirts when using a lathe, please.

Put it on a Mower

think you der

સરસ(good)

Henri you r. Mahtdar lend

Do e- bike using this motor

Show diagram👈👈👈