Building an Alternator Powered Bike

A few years ago I converted a car alternator into a go kart motor. In this video I build an alternator powered bicycle. I originally tried controlling the motor with a sensorless controller but did not achieve the performance that I was hoping for. After installing hall effect sensors into the motor the results have far exceeded my expectations. The alternator is from a 1998 Ford F-150.
Please consider supporting my projects on Patreon: / austinblake
Building an Alternator Powered Bike - Part 2
• Building an Alternator...
Converting a Car Alternator into a Go Kart Motor:
• Converting a Car Alter...
Hall Effect Sensor Placement Article:
mitrocketscienc...
Follow Me:
Instagram: www.instagram....
Music:
campsite.bio/a...
0:03 - APEX - Delacey My Man Cover
11:14 - APEX - DRIFTER
Outro song:
David Cutter Music - No Words (Mosquito Beat)

[@romanroad483]

Most other youtubers videos would last 2 hrs to describe what you covered in 15 mins. Great video, no waffle, no endless shots of screws being removed, no B.S. well done.

[@szsr6458]

9oooo9oo999o9oo99o9ooo9o999o999o9o9o9ooo9o99o9ooo9o9o9o9o99ooo9o999o9o9o9oo9999o99oo999o9o9o9o99999o9o9o9999o9o99o999o9o9o9o9o99o9ooooo9oo9999o9oo9o9ooo9o99o999ooo99999oo99o999oo9o9o99o9oo9o9oo99o9o9999oo999o9ooo9o9o99oo9o9oo9o99ooo99o9o9oo9oo9o9o9o99o9oo9oooo99o9o99o99o9oo9o9o9oooo9oooooppopo{o{opportunities o-o for 889bmk of other o9oo9o99o9ooo9o99oo9o99o99o99o99oo99oo9o999o9oo999o9oo9o9o9oooo9o9o9o99999ooo9o9o9o9o9o99o9o9o9ooo9o9o9o9o9o99oooooo9oo9o9oo9o99oooo9o9oo9o9o99o999o999o9oo9o9o9oo9o9o99o9oo99o9o9o9o9oo9o9oo9o9ooooo9ooo9999o9oo999o9o9oo99ooo9o99o9o99o9o999ooo9o9o9o9o9oo9ooo99ooo9o9o9o99999oo9o99999oo9ooo9999o99oo9oo9o9oo9oo99o9oo9oooo9oooooo999ooo9o9o999999oo99o9oo9o9o99o99o9o9oo9o99{p{poo9oo9o9o999oo9o9o99o99ooo9oo9o9o9ooo9o9oo99oooo99oo99oo9o9o9o9o9oooo99o9oo99o9ooo99o9oooooo9o99oo9oo9o9oo9oooo999oo99o99oo9o999oo999o9oo9oo9ooooo9oo9o9o9o9o999o9ooo9o9ooo9o9ooo99ooo9oo999o9oo9ooooo9o999o99oo999oo9o999o9o99o9oooo9999ooo99o9oooo9oo9o9ooo9o9ooo99o9999o99oo9oo9oo99999o9o99oo99ooooooooooo{o99o99o999oo99o9oo9oo9oo99999o9o9o9oo9ooooo99o9o9oo9o99o99o9ooooo99oo9o9ooooooo9poo{oopooo{} {o9o99o999o9o999oo9o9o9o99ooo9o9ooo9oo9oo999o9oooo9oo9o99ooo9oo9o9oo9o9oooo99oo9o9o9ooo99o9o9oo9o9oo9ooo9ooo9ooo999o9o9o9o9o9o9oo9o9o9oooo9oo9oo99o99o9oooooo99ooooo9oo9oo9o99oo99oo99ooo99o9oo99o9oooooo9oooooooo9ooo9o9o9ooooo99oooo999o9o9o99o99oo99o9o9oo9oooo99ooo9o9oo9o9o9oo99o9oo9o9oo9oooo999ooo9o99o9oooo99oo9o99o99ooo999o99o99oo99oo999o99o9o99o9oo99o99o9ooo9o9o9o9o9o9o9o{o9999o9ooooooo{9 9 de 9 de bois ou oolong des bois io ou ooo9o9oo99999999999999999999o9999o9ooooo9ooo{{oooo{oo{ooo{oo{oo{ooo{o{ooooooo9{ooooo{loop {oo{ooo9oo{oo9ol{l io oooo{{o pop ooooooooo

[@waitemc]

No getting to know pets, gf's and channel trajectorie.

[@michaelproano1449]

@@szsr6458 same

[@jammcguire1276]

Could you put another alternator on the front to power the other alternator engine!

[@sugameltpastriescoffee7186]

Really appreciate him saving us time that no one should ever waste on youtube videos

[@pcbn2u]

I really enjoyed this video. I am an old Electronics Technician who worked on the latest technology in high end Quadraphonic / Stereo systems in the late 70's. Really proud of what you accomplished.

[@boyracer3477]

Robert Johnson Four-channel music was wonderful. Too bad it didn't last.

[@fireballxl-5748]

Aw dude I'm old enough to be your grandfather and I'm really happy you stuck with this project and made it work. Nice job! (And for American viewers.....top speed of 69 KPH is 42 MPH.)

[@jonhayden6235]

Difficult to comprehend how anyone could "dislike" this great video, and puzzling that those who did would not take the time to explain why. Keep up the terrific work there!

[@blackopal3138]

lol You know people murder each other, right?

[@daviddillardjohnson9137]

@@blackopal3138 your comment cracked me up bro lol

[@realryleu]

it’s probably mostly people who want him to wear a gosh darn helmet

[@daviddillardjohnson9137]

@@realryleu They should mind their own business and worry about their own lives instead.

[@karimrishani8298]

I think you manage to combine your Electric Engineering skills with your ability to work with your hands. Well done. Most people either understand theory or can work with their hands. You have managed to master both.

[@lotharschiese8559]

Oh, almost forgot, you need to understand the fundamental principals, then have vision how to apply.

[@commandericeman8588]

Right! This is the kinda engineer you want with you in deep space when your space ship goes tits up. 🤣😂😄

[@sanansa4567]

very true. that is why I like KZbin because I can find people who know / appreciate both aspects. Many years ago I asked some friends who are electrical engineers how the power company makes electricity (the basic overview) and they just laughed at me (I wasn't looking for an indepth class), now I found so many videos that shares the basics on the equipment used.

[@777noirkat]

In the back pages of popular mechanics there was always a small ad saying “build an electric go cart with an alternator “ or something close to that - that was 40 years ago! Good to see it in action! Cheers

[@E-Biker-zm8pz]

Excellent example of ingenuity and dogged perseverance. We need more young men like you. Well Done!

[@tbmdd]

@MichaelKingsfordGray Damn nobody asked tho

[@gunners4129]

From his name, I know that he's and ebiker in the 18650 zipcode. That's more than we actually need to know about him lol

[@caleb8422]

@@gunners4129 lol I think 18650 refers to the commonly found lithium ion batteries he uses

[@gunners4129]

Ah 👌 thanks

[@TheNuclearBolton]

@@gunners4129 😂😂😂😂😂😂😂😂😂

[@TexusNoe365247]

Dude, I’m studying AET (Automation and electrical technologies) and this is right up my alley. You did a fantastic job explaining everything. It was a learning experience for me as well. My question is how did you convert DC into 3-phase AC?

[@danielauen7790]

Motor controller spits out a 3-phase pwm signal.

[@JeremyBreeden89]

That's the speed controllers job.

[@abbaouiIlyase]

Hey dude I want to try this experience because it is a wonderful thing. What do you advise me?

[@averagejoe9040]

"I was determined to make it work". Those are usually the last words I say before draining my bank account.

[@SORGIGERMANICO]

I said the same thing about my marriage lmao

[@dixonstudios]

Got the T-shirt....

[@dbwindhorst1]

Likewise. There's a master's/doctoral thesis waiting to happen on this behavior.

[@fuzzballdasoft5889]

good girlfriend joke

[@richwrightrocks]

Awesome job I made the comment about adding a smaller alternator to recharge your batteries and maybe double the time of the 30 minutes you have driving. I was wondering if you saw the KZbin video where the kid in the third world country used a well-kept secret in using water to power his engine on a scooter. Is that really possible? It looked real.

[@pauloalbertovamosfalardequ6976]

Hello friends. let us be grateful to our friend who posted this video sharing knowledge. It doesn't cost anything to like and make a simple comment. It is the least we can do in gratitude for his work. thank you!

[@MCsCreations]

Concordo plenamente. 😊

[@diraziz396]

thank you

[@davidjames666]

simple comment.

[@erictharp6095]

How long does the battery last

[@tarstarkusz]

What I want to know is how many watt hours per mile. Also, a better drive system. The drive system is absolutely terrible. Aside from being terrible, you cannot do regen with that clutch. Regen would be the saving grace of the awful drive system of attaching a chainring to the wheel spokes. It's inefficient because he is constantly dumping 12v into the windings. It needs to have the windings only being powered when he is on the throttle.

[@tomboytomgirl5356]

You give me great hope young man. There IS much to delight in about the young generation. Your work ethic is commendable. Your physics knowledge is brilliant. You can do anything you want and go far in whatever worthy endeavor you choose. You have ALL IT TAKES. I SALUTE! you, sir. Best wishes for you in whatever you choose. Go FORWARD, knowing you are a GOOD YOUNG MAN. God bless you.

[@danyalahmad2097]

kzbin.info/www/bejne/aaWmlXiEpM-hmK8

[@ianmeno4388]

Thank u gorges

[@haggai3.477]

@@danyalahmad2097 They don't play.... SALUTE ✅

[@danyalahmad2097]

@@haggai3.477 ?

[@haggai3.477]

@@danyalahmad2097 Your shared link is super accurate.

[@philtobin9510]

Sweet ride. You've got a missus that understands our silliness as well, dude we're so lucky.

[@fvrrljr]

OLE'!

[@zaire.mg.]

Very informative! Not everyday when you find a video that breaks down by the detail of all the revisions and road blocks. Definitely a ton of gems in this video!

[@lotharschiese8559]

Like going to college, work on your pet project, make it work, get credits and a referral from the Prof.

[@saltydecimator]

Amen preach it brother! Now I’m not your mommy but dang you brave testing stuff with no crash helmet!

[@danyalahmad2097]

kzbin.info/www/bejne/aaWmlXiEpM-hmK8 yup

[@dyode1]

...the best thing about this video for me was your troubleshooting skills and determination and stubbornness in chasing down the logic of the engineering... awesome, well done.

[@CantTakeJake]

Bro the lengths you went to bring us this video is just awesome... I hope the people watching actually understand... 👊👍

[@MichaelSmith-mb1gm]

Werd. This guy is super smart & determined.

[@johnlarryedward]

This is right up my alley having being a marine electrician for the last 45 years, and an electric bicycle enthusiast!

[@kokopelli314]

Determination and some skills will do ANYTHING!

[@MrKyltpzyxm]

As the sort of person who would definitely stack 5 parts together because I already have them and it does almost what I want, instead of buying 1 part that was professionally designed to do exactly what I want, just to see if I can make it work, I really appreciate the ingenuity on display here.

[@humbleevidenceaccepter7712]

I take joy in the expression of someone else's genius. I got a lot of joy out of this.

[@warrior--poet5418]

"WE ACT, AS GOOD FOLKS - FOR LOVE" for you i would like to simply, say, expressing in such very good ways is always respectable and it deserves.. it reminds me of my older works, so, in the case of your say, today - displayed in relays, my quote, returns : soliloquy from 2017, where 'katiger says' "as our joys in this world shall include your achievements.." - warrior poet in the days of past and since then, as said, they have remained equally, true.. at that, would recognize your statement, here.. because you hold that spirit in your living years.. - human mentalities have many redemptions - you have expressed an important one.! more should take heed.. ""if there was more love in the world - we would probably see a lot less dying..!!" - clint eastwood (the pale rider} ~WarriorPoet~

[@The_Conqueeftador]

The dumb man cannot distunguish between a genius and a parrot. I see alot of parrot in this video no genius.

[@jim-cu9yp]

there are automotive alternator magnet kits for diy wind power generators .the last time I tested one for a customer was about 15 years ago so not sure if they are still available .that's the time when neodymium magnets were the hot thing to make projects, the ones I've seen came with a rotor cast from aluminum with magnets for 10 si gm alternators

[@elromanicobaby]

Nice adding hall sensor wiring to a alternator is beyond awsome

[@marcosfilipe4468]

i didn't understand what changes in the motor adding hall sensor? increase speed, torque? what?

[@elromanicobaby]

@@marcosfilipe4468 im pretty sure its for the controler to know where the shaft is but u can now use different controllers like the ones i use from amazon that have a hall sensor connection

[@joekneer1599]

Great project, I’m impressed with your tenacity with the Hall effect sensors. They are not easy to understand at first and I thought you did a good job of describing their function. Really good job and video overall👏 Thanks.

[@austiwawa]

Thank you!

[@Coincidence_Theorist]

@@austiwawa you definitely come through as genuine and guided by your own internal compass and inner light. Stay you. Stay true and i see success and happiness as two of your life’s major constants.

[@rodfisher2837]

What a brilliant video, Patience-Ingenuity-Perseverance, I could go on and on. This young man should go far. Thank You.

[@daniellane753]

Yes he will.

[@troyhummon7978]

Perfect example of what anyone can achieve if they attend school and get an education! 👍

[@eugenejoe303]

Nice! Love It! I wish I can build One!

[@gamerpaddy]

on the good side: you can weaken the magnetic field for more speed by varying the rotor current or make it stronger for more torque. free gearbox basically. however on the bad side you wear the brushes and its less efficient since you have to waste energy to keep the magnetic field active. you could also use it for regenerative braking by feeding back the energy in the rotor instead of applying 12v when hitting the brakes.

[@Hyratel]

You're not going to wear the brushes by any noticeable level, considering alternators can potentially run hundreds of thousands of miles with no maintenance. It's a slip-ring not a commutator, so there's no slots to wear down the carbon

[@AKAtheA]

thing is if you use unfiltered PWM for the field winding, the sensors (and controller) will have to deal with the electrical noise

[@nickldominator]

It would be interesting to drive the alternator with a VESC, and write a custom app for it to control the rotor field voltage. Since the VESC internally knows the ERPM, it could easily take that and apply it on top of a curve you define which determines the field voltage. Have the VESC output the setpoint to a DC-DC adjustable Buck regulator, and it be able to dynamically and automatically adjust for optimal torque and RPM.. I might have to play around with this.. heh. Another neat feature of something like this, is since the VESC directly can read the throttle input, it could also just disable the DC-DC regulator at 0 throttle. Thus eliminating the parasitic current draw at 0 RPM.

[@danf2513]

Need you around for an apocalypse

[@jmikronis7376]

@@Hyratel, diesel trains have brushed motors driving the wheels that contact the rails. These brushes have to be changed out regularly. I was informed of this by a (now deceased engineer). There are several sets of them. If you have a brushed motor, plan on having to change them out, there is no free ride.

[@MrAdiliv]

Absolutely impressed with your skills and determination, I would definitely continue improving and expanding the product base to a standard baseline and market it locally. Cheers and don’t give up.

[@Felem1000]

70 km/h?? My scooter wobbling even at beyond 40 km/h! Great job! The Hall sensors made a world of difference!

[@hyukcho328]

In depth knowledge, persistence in problem solving and happy riding! Excellent job

[@austiwawa]

Thanks so much Hyuk! I appreciate it!

[@smallblockchevy1022]

I agree, that kind of determination, accompanied with some intellect and ingenuity can take you far.

[@smallblockchevy1022]

​@@austiwawa I'll post this again here in case it may not have came to your attention. Just curious what you think about this: The centrifugal clutch idea could easily have worked properly, by either putting lighter springs in it, increasing the mass of the flyweights, or a combination of both, or else by getting a bigger clutch if that one was too small. I was also thinking you could have added a micro switch to the throttle, triggered by the initial first couple of mm of motion, connected to a relay supplying field power to the electromagnets. This would have eliminated the issue of the motor constantly spinning at a low speed. Great final product though. Keep up the good work!

[@foxxyytofficial]

@@smallblockchevy1022 removing the clutch was better, because the sensorless controller couldn't spin the alternator as fast as the other controller and with hall sensors it was even better and cutting the 12V field is a bad idea for the controller

[@swicked86]

Why would anyone thumbs down this video, it's super rad!

[@truckerdaddy-akajohninqueb4793]

1.2 million views doesn't lie 👍

[@rf-qp4yi]

@@truckerdaddy-akajohninqueb4793 people who never learned to ride a bike

[@BatMan-co1gy]

because he didn't take it off any sweet jumps

[@stevenbundy4336]

THE BIKE SHOULD BE PUT BACK TO ITS ORIGINAL DESIGN AND LEFT THAT WAY. IT LOOKS LIKE SHIT WITH A STUPID MOTOR ON IT WHEN IT WAS NOT MANUFACTURED THAT WAY.

[@rf-qp4yi]

@@stevenbundy4336 caps on, this guy is not messing around

[@77.88.]

Another Steve Jobs or Elon Musk in the making, WOW YOU DONE GOOD. Thanks for all your efforts and successes, God Bless and hang in there!

[@Ty-dt8xv]

Converting the alternator was very impressive! But the most impressive part to me was that you are determined to find a solution and you did great job young man keep doing what you were doing with that same determination and you will go very far! GOD BLESS 🙏🙏🙏

[@foxxyytofficial]

HECK YEAH!!! FINALLY! I waited for so long, and finally you installed the hall sensors on the alternator!!! My years waiting finally paid off!! The youtuber "Enrengineering" also installed hall sensors on his alternator go-kart

[@OverbuiltByHenry]

That's correct! And it seems I skipped some steps...dang it! It seems that I will need to perfect the car alternator go kart. 😅

[@foxxyytofficial]

@@OverbuiltByHenry the only steps that i saw you stepping and remember from head were the top speed tests with modulation of tbe PWM brushed system, and the hall sensors on the middle of the stator (you put on the end of it)

[@OverbuiltByHenry]

@@foxxyytofficial maybe I will try to put the sensors on the middle of the stator if I can unglue them

[@austiwawa]

Thanks @FoxxyYT happy to see you so active in the comments! Enrengineering did a great job on his go kart!

[@foxxyytofficial]

@@austiwawa i am so happy to have you answering me Since the first alternator video i tried to help people in the comment, not just in your channel but in others too, like Enrengineering's channel

[@TinyGiantLifeStyle]

42 mph. Nice! This is the type of DIY I love repurposed hardware with real results.

[@Cotronixco]

43.

[@dh66]

Your conversions are taking away from the righteous to speed of 69 kph. WooooOOOOoooo!!! 😉

[@stephenflowers8516]

Those centrifical clutches are exactly what we used in the 60s when we made Go Carts and Mini bikes by putting lawnmower engines on them.

[@chrisbangerter2]

i had one in the 90s lol. loved it

[@boats2474]

OK, soooooo, I didn't like the Clutch. I put together a vert small lawn mower engine chain driven very small Mini Bike which started by dragging the back tire, jumping on... throttle pretty much took the place of the brake and to kill it just pull the brake. Worked great and My neighbor's kids loved it! Why not just turn the controller on and off? 42mph very good!

[@billbearden7301]

If you ride at speeds higher than the bike is intended, reminder to check the axle bearings and grease. I made a minibike in the 60’s from a stingray bike and a 65ccClinton go cart racing motor. It would go 50 mph and after every run the bearing grease overheated and spun out of the bearing housing. It would not take long for the bearing balls to separate from the bearing. Caged ball bearings were the common type at that time.

[@Iceflkn]

Well done on diagnosing the needed solution!

[@gangoffour6690]

You are a brilliant young man 👍. Our country needs many more like you.

[@paullacey748]

Success is 2% inspiration and 98% perspiration, plus the ability to keep trying. Our greatest inventors had many failures

[@dougjohns5115]

You are an astute young man... you will go places in this life.

[@dpz9872]

Your father's gotta be proud of you, him and your mom obviously did some awesome work together. 👍

[@markpellerin2768]

I can appreciate all the work you didn't show. Great video!

[@oliverdavidpatrick]

Props to you for all your persistance and never giving up!!!!

[@nerdy.fusion]

what I learned from watching this video is that I should just buy an electric bike

[@flaplaya]

That 3 phase cable magnetic gallop at very low frequencies was really cool.. So was the entire build, Nice 👌

[@mitchsumner2831]

Love this. That centrifugal clutch can be fine tuned by changing the springs, much like the old advance mechanisms of automotive distributors.

[@patlevv7382]

aka. CVT🛵az well‼️😜🆘🔙🚀

[@fatheadpr]

Also adding weights so the clutch will engage harder at lower rpm

[@brentspellmeyer8943]

Came to see if anyone mentioned this

[@CoolAirVw]

Hard work and knowledge and diligence paid off.

[@joshuawilcox1322]

I KNEW you could use alternators as motors!

[@rgraptor2542]

Felt the same way, thinking like why hasn't anyone done it? Then I saw this guy

[@fatheryumyum4905]

Thanx for letting us know you knew that? Wtf

[@rgraptor2542]

@@fatheryumyum4905 you've never been excited about being right?

[@boastyy]

Nice one mate, I have got up to 45mph on my mountain bike going down a hill and that felt sketchy as hell. I can understand you not wanting to go faster lol. Will be great when the battery technology gets better and you can have more range without huge expensive batteries.

[@stevebryson2459]

Love it.HOWEVER seems very intense. You should sell plans so a non electrical guy suçh as myself could Tackle this project.

[@thatguy1615]

"Check out the big brain on Brad" 👍truly awesome!

[@gaguilar14221]

This is awesome!, I think your power problem lays on the "Y" configuration wiring...try wiring the motor in a Delta configuration, you'll get way more power use but double your torque!

[@DANTHETUBEMAN]

I like to see people learning through doing progect like this.

[@soljainc123]

Literally why I come on youtube to watch videos like this.

[@jm4672]

We need more young people like you please continue and please Inspire other young people our future is in your hands. And I really do mean this our future is in y'all's hands God bless

[@Biscuits3000]

This is such a cool idea! I'm getting parts to build a motorized scooter with 16 inch bike wheels, and this kinda gives me hope that I can still get it done under 1000$. Very cool work!

[@warrior--poet5418]

this contraption is quite sound, and can be doubled, inexpensively, considering the alternator(s) can heat up on longer trips.. on a scooter, you could easily carry two systems & use gel cell batteries, because they are very deeply charged.. you could, conceivably create a virtually non-stop cycle (or cart) with the use of panels, and precision bearings at shaft races.. good luck on your awsome scooter project..!!

[@lmeza1983]

This is borderland genius, kudos.

[@jeffreycollins7297]

DO you mean Borderline? Cheers.

[@joseochoa5432]

43 MPH on a bike that isn’t gas powered is impressive.

[@Hyratel]

It's impressive even on a gasser, mine tops out 35mph

[@glennedward2201]

Range versus power. A trade off.

[@davidmacphee8348]

"Ma! You'll never guess what just happened!" Pull out and pass that old man on the tractor at top speed and he'll go home and cry to his wife.

[@ut3149]

Works also without the hall sensors if you use the BLDC controller for an ebike and a PWM signal for the DC stator. PWM just needs to be controlled to give constant 250mA. I know this because I built an ekart for my 5 year old Son. Your old video made me realize an alternator was sufficient for such a project. What makes it better is that you can control the speed, direction and acceleration. The ekart can drive me an adult(76kg) at 40km/h , so for safety it is absolutely limited within the controller for my son's use. It also has horn, lights,cruise control, reverse and breaking, last one by short circuiting the leads with huge current relays (originally was using it to put back the power to a battery, but it was so small that I desisted on the effort). With a 24V, 22Ah battery he can drive up to 40km full throttle, now it is limited to 30km/h, 10A (maximum acceleration and power 240W), but on my first trials he went so fast I was not able to catch him on my bike. The alternators can keep up to 70A continuous, so is circa 600W machine if you have the power to supply it. He also got scared so he never uses it in the high power settings, best because we can go more than 4h trips on the bikes with a small child having fun.

[@foxxyytofficial]

His first video showed 1500W 48V controller without hall sensors

[@RedBatteryHead]

Amazing skills you got. Tinkering so far to get your result. Put next motor as a crankdrive. On a geared bike.

[@psyclopz1]

That's great man! Lots of clear thinking, I dig it.

[@andre-michelgoulet6933]

I admire your dedication to making the most incredibly backasswards shit actually kinda sorta work. You sir, have 99% more patience and motivation than 99% of us...

[@Sevalecan]

I'm impressed that you actually imlpemented a sensored synchronous motor. Not in that I would assume you couldnt, but I think most people would not have tried, or would have tried and given up at the first sign of trouble.

[@MrFegro]

Great work done!! It also gave me more insight into the hall effect sensors, which has given me problems before. Thanks so much and keep up the great work you're doing.

[@oldschoolcars3318]

Love your work ethic, and your persistence! Great job!

[@gangoffour6690]

He sure has the curiosity, tenaciousness and knowledge to be an inventor / or great engineer. A definite free thinker. Kudos young man 👍

[@MasboyRC]

Great video, even complicated but still more easy to understand. Thanks for sharing 👍

[@BaronBoar]

When you said the motor kept slowly spinning with the controller, I immediately thought, just get a centrifugal clutch lol. And that's what he did. Makes perfect sense.

[@sumoddball]

Better than rich rebuilds, you actually finish it in one video instead of 10.

[@jarongaus]

Excellent work !!! Great knowledge and the ability to create and modify, passion that I have personally. I also built an e-bike from a kit using a three phase brushless motor. It is a 48V 20AH battery with a 800W motor. It is limited @ 50 Km/h but it is far enough on a bicycle frame !!! Keep-up the good work and innovation !!! It pays off specially on your career if you pursue Electronics/Controls/Computers !!! Have a great future !!!

[@patrickjmorgan]

Great to see you work through this. Id not thought of using an alternator. This is proper 'shed-built' stuff!

[@rsz90182]

You will make a great Engineer!! Keep it up! Never give up on a problem that is beating you down. There is always a way!!!

[@jeremyoshea9502]

I wish I had 10% of your Comprehension! You did a great job describing, it’s me not you! Thanks for your time!

[@Mike__G]

The back of that bike reminds me of Doc Brown’s Delorean in Back to the Future.

[@MUBARAKMUBARAK-nt8iq]

AsSALAMUALIKUM 🤑 IT WORKS 🤮.

[@R3TR0--93]

A bike that will literally take you to the future

[@angelwarrior8019]

"Roads?"........Where were going we dont need, roads". You built an ⚡🚲 out of an Old Rusty? "This is heavy". Exceptional work my new Friend. BRAVO!! 👊 Post Script, I subscribed immediately when your insane ingenuity flew across my video lineup. Then I proceeded to watch in absolute awe and utter wonderment. Well done. Good Show. Thank You Sir.

[@kinglouis7134]

I’m so impressed with your knowledge and patience. Keep up the great work.

[@christophertaylor87]

The fact that you installed a centrifugal clutch on an alternator motor is so bonkers I love it!

[@LairdScooby]

Little tip about the rotor - if you reverse the polarity on it you reverse the direction of the motor. Also don't feed it direct with 12V, try feeding it via a 3W 12V bulb to reduce the current it takes and the subsequent heating effect in it. I've seen the results of bypassing a charge warning light on a diesel generator when the bulb blew, wasn't pretty! Using a 3W (or even a 5W) bulb will prolong the life of both the rotor and battery. Other than that, great video and yes, HE sensors are tricky to get your head around - i found it easiest to think of them simply as a switch which changes state as the magnetic field around them changes.

[@dizzydinonysius]

Does the bulb balance the current or something? For the motor, do you think these numbers could be reversed? /approximate? "An alternator typically takes about 1 HP (horse power) for every 25 amps of power generated. So, a 100 amp alternator will require about 4 HP at full output."

[@LairdScooby]

@@dizzydinonysius As pointed out above, the bulb restricts the current to the rotor to prevent it burning out. As an alternator is a wound component, the generally accepted efficiency is ~80% (there are more and less efficient variants) and a 100A alternator will output 100A @ 14V. Simple Ohms Law provides 14 x 100 = 1400W, divide that by the efficiency and it needs ~1750W to drive it which is ~2.3hp. If the alternator was a 24V type at 100A this figure would be doubled. However, reversing the figures isn't possible, the alternator in the thumbnail that heads your vid is 40A which would be ~560W@14V output. This means it's capable of being driven with anything up to 560W of electricity. As 1hp is ~750W, thaat would be roughly 2/3hp. Hope that helps!

[@king_ofdogeii268]

My uncle scraps cars he practically has an infinite supply of alternators, this give me idea.

[@mor4y]

There are some pretty funky water cooled alternators on audis and the occasional VW, usually the most powerful diesel variants, they look to be the best fit if you have a wide choice of the things available ;)

[@foxxyytofficial]

@@mor4y there also are the mild hybrid systems, like the Hyundai HSG, Honda IMA, GM's BAS/eAssist

[@mor4y]

@@foxxyytofficial I actually had a civic IMA, and recharging was handled by the internal hybrid motor, the alternator was only for the 12v side of the car and was a tiny wee thing! :) the 12V battery was about the size of a dry cell from a shopping buggy. I still have the hulking great 110v hybrid battery pack in my shed, its massive! :)

[@foxxyytofficial]

@@mor4y the Honda IMA can even be used to power cars and other builds, just need some research

[@51WCDodge]

Stick a bicycle wheel on a pole add vanes and attach an alternator, been done for years , long before Off Grid was a craze. Good on a water wheel as well.

[@getochild13]

I appreciate that he did his thing and didn't harp on about subscribing like everyone else does

[@fvrrljr]

that's why i slapped that subscribe. he never mentioned it

[@mowtown75]

very clever. I love how you overcame the challenges.

[@tomhill4003]

Really amazing work Austin! Thanks for the deep explanation on the science and physics behind the motor build.

[@ankorsteam]

XT60s really show you as a true RC guy. And the wing motor gave it away

[@ericw7754]

Engineer vs Businessman: Businessman: the controller is not suitable. The motor has no torque and even if we get it working it will waste battery. Engineer: Yea but we should still see if we can make it work

[@giwtwm]

wrong the businessman would be thinking profit first

[@ericw7754]

​@@giwtwm Thank you for restating my point.

[@warrior--poet5418]

PRAGMATIST : "go for it - but, don't spend all of your allowance, kid.!"

[@johndyson4109]

AWESOME DUDE! You are a person that makes things possible through determination, know-how and intelligence..

[@marjiemiller]

Very inspirational, forging ahead no matter the obstacles!!! Thank you!!! I learned alot!!! Will have to watch again too to understand more, as well as your other videos!!! You make it very interesting, with a purpose, in a short video!!! GREAT JOB!!! 🙂!!!

[@moesanrath]

i can only imagine how satisfying it was to figure out all that stuff on your own good job man good job =)

[@functionalvanconversion4284]

Amazing! Your persistence thru the project makes you a hero. Learned a lot here. Thanks

[@ChrisCrangle]

I wonder what is feels like to be this smart.. awesome job dude

[@jameshughes131]

when i was a kid i put a chain saw engine on my bike peddles. it didnt have enough catch for take off and slipped too! same clutch type

[@volvo09]

Yeah, chain saws and weed eaters are High RPM, veryyyyy low torque. You would have needed a monster gear on the bike to let the engine rev out enough. Stinks that you Aaaaalmost had it, I always wanted to do that as a kid, but I couldn't work with metal to save my life.

[@jameshughes131]

@@volvo09 my successes can when i built a dolly that had front wheel you can steer with your feet. Mastered the steering column at a young age lol. around 13-14 i made this cart that was a busser tray with holes drilled in it. Then a wire age put into the holes and then pillows. A person would sit inside the mini covered wagon? and we would launch off big ramps and hit rails. We would also tip it over at high speed and watch the person just roll. From here we moved to a 6 foot metal drain pipe piece and a mattress. we would roll inside it down hills until we hit something or we would play king of the hill on top and push each other off and roll the tube with our feet. Last person alive won.

[@volvo09]

@@jameshughes131 haha! Love the busser tray cart! Thanks for the smiles. Reminds me of when i was about 13 and made a "go cart" with my friends... It was so bad, i totally forgot about it till now.

[@eribertoacedo9505]

Hey youngster pretty clever I like where your heads at that’s pretty neat coming up with that I’m anxious to see the new when you’re coming up with that I would be pretty need to anyway my friend you got a good brain on your shoulders there buddy I’ll be watching thank you from San Diego California , would also make a very nice beach cruiser come on now how about that!🇺🇸

[@kingmasterlord]

I love how excited this guy is

[@ph5056]

@@kingmasterlord I would be if I was him , I'm a metal artist ' sculptor' I can make things look sweet but I'm not one for making things work like this , just basic mechanical knowledge , I'm going to study some of his work.. inspiring !

[@andrew_koala2974]

Eriberto Acedo where your heads at ? Do you see more than one head on this presenter? May the Saints preserve us, including Diego,

[@spudnickuk]

When i was a kid we made many Gokarts from Pram wheels and had a starting motor and a car battery for power, There was never any prams left to go to waste May be people will see your video and put there old bikes to use. :) may be we can see Rusty V3

[@clarencewsmith707]

Very cool I hope you put it into the market and let others create their own bikes or just make a proto bike and then put it on the market for a reasonable price something that can be used every day something with shocks or springs for a cool ride, don’t stop now you got something to build on and profit from on your time.

[@goocherrific]

Dang bro, you're freaking awesome! I wonder how much horsepower these are and if you can run multiples.

[@quinnfoster4671]

When you are having ESC issues I can't be the only one screaming VESC VESC VESC

[@foxxyytofficial]

I yelled as well

[@riccardo1796]

Benjamin vedder SHPINNING in anger

[@allabouturmom868]

Whats a vsec exactly? Im going to make this for a school project and i wanna know all about it

[@riccardo1796]

@@allabouturmom868 a free and open source esc capable of running anything except asynchronous motors, you can get one for cheap on Amazon, chyna or make your own There are many versions like dual motor for skateboards and big boy chonker to move vehicles

[@foxxyytofficial]

@@allabouturmom868 its a programmable and full-fledged speed controller, for its size and price you can have an amazing product

[@MCsCreations]

FANTASTIC work, Austin! Nicely done!!! 😃 Happy new year! And stay safe there with your family! 🖖😊

[@timlantz9742]

Your troubleshooting skills, diligence and persistence is fantastic! Keep seeking new skills!

[@michaelfunk5951]

You’re on it, bro. This is gonna get you very well known.

[@mrshoney2624]

Amazing what you can achieve when you put your mind into it and not give up! Well done young man, great Video too, look forwards to see some more.

[@chasebarnard1223]

Awesome!! Love this very creative and ingenious. Also great B-Roll

[@gilldanier4129]

It's amazing how powerfull that motor is. WE just need to advance in our battery storage, but it's coming on now.

[@Onealmightypod]

Truly inspiring endeavour and thank you for taking the time to share it with us. As we move to a post fossil fuel era these innovations are exactly what will keep us moving!

[@Cre8tvMG]

What a beautiful neighborhood for testing! Thanks for a fun video and letting us follow along as you figured out how to solve the problems.

[@Wheelieking619]

Amazing! You pushed through a world of shit to get to the finish line, truly inspiring.

[@AntonioClaudioMichael]

Nice engineering there Sounds way better also no loud horrible noise