Can I Power This Go Kart with a Used Car Alternator?

[@ralfoide]

Loved the whiteboard technical explanation of the alternator-to-motor conversion -- not only you provided just enough theory but it was also very clear and easy to follow. Also the magnets on stick on the lathe were a very clear visualisation of the problem.

[@oli_g_98]

Reminds me of ElectroBoom

[@MysteriousFigure]

@@oli_g_98 Got the exact same impression, its the careful balance between making sure all the important information is conveyed, but not making it too complicated and understandable for any kind of viewer

[@Boemel]

Clearly he forgot to carry the one for calculating the HAL sensor position.

[@killallfornothing]

@@oli_g_98 so where are the exposions?? electric schocks and FULL BRIDGE RECTIFIER!!!???

[@brookewestonctc]

Seriously, this was some Technology Connections level stuff. Very impressive!

[@David-bs6bv]

As someone who was an electric motor mechanic and also wound motors, both 3 phase and single phase, I appreciate this video. Your terms and explanations were on point.

[@raven4k998]

I love how he uses the electric go kart thing as an excuse to play with making a home made electric toy

[@keithgordon9399]

David. The first thing you should tell him is, if he takes a Delta connected motor and changes the configuration to a Star connection it will make the rotor twitch because the Rotor is wound for a Delta signwave. If he changes it back to a Delta connection it should work.

[@Onimalap]

I love projects that start with “I got this idea and $5 part so let me spend few grand and months to prove my idea didn’t suck” because I can relate. Good luck and looking forward for more.

[@stevenrogersfineart4224]

Amen to that 😆

[@nmemonicporsche]

“And that brake rotor is more warped than my perception of reality” I love how you just slipped that in so nonchalantly.

[@lonely.toaster]

W a r p e d p e r c e p t I o n ?

[@Thefreakyfreek]

I read this exactly as he was saying it strange

[@Mr3n1gma]

I too had a good laugh at that comment. Brilliant.

[@deanwilkinson8458]

​@@Thefreakyfreekfucking same thing just happened

[@roundtuitracingaz132]

I started building a dune buggy for my daughters 16th birthday. She's 19 now and the dune buggy is still in my shop waiting for me to finish it.

[@jasonpitre1249]

She is likely overwhelmed with excitement by your epic build. Stay epic my friend!

[@jasonpitre1249]

@FlintsYT Was just making a joke friend. Wasn't being critical or sarcastic. Great video btw. I've always wanted to build one, just never had the time or the workspace.

[@SAVETHEPLANET-KILL-A-GLOBALIST]

Go get it done!

[@clayreal]

It is said that i never know when to quit. I say i just never quit. We might retreat today but the fight is Not over, the battle might be lose but the war isn’t over.

[@alternator7893]

Finish it

[@bleeedthebrakes]

As a chinese-speaking viewer, I'd be glad to help interpret the info on that motor controller Did you initiate the self learning function of the controller by plugging in the white thin cables? And also, which type of hall sensor did you use? 43E or 49F type ? Some controllers utilize dual on-off type hall sensors with one linear type hall sensor in the middle, while others use on-off type only

[@TheOriginalEviltech]

The one in the middle is linear?!?! I noticed it has a different designation but the output signal was still a sharp square pulse...

[@bleeedthebrakes]

@@TheOriginalEviltech only some of them use linear type in the middle, most of those hub-type motor just use three same switch type sensor, with variants that have the middle one facing opposite of the other two, as you've noticed

[@tyronenelson9124]

@Lassi Kinnunen 81 That makes no sense, 3 inputs means 3 sensors.

[@idko5452]

Very good point with hall sensors, I almost forgot that there is enormus types of hall sensors (analog, digital, latching, non latching, 3pin, 4pin, different voltages...)

[@bleeedthebrakes]

@Lassi Kinnunen 81 He only installed 3 sensors, which is correct The other issue I've observed is that he gave the whole system a fairly small final drive ratio, while this controller is mainly target towards direct-drive hub type motors. Those motors are commonly seen in light electric bikes, and I'd imagine if he raise the final drive ratio to about double direct drive rates, the go cart can start rolling by itself with no problem.

[@DeadReckon]

Aging Wheels: Complains about noisy inefficient engine strapped to back of go-kart Also Aging Wheels: Drives a Trabant, a Yugo, and a Reliant Robin

[@raven4k998]

ssshhhhh just go with it

[@0ne323]

Yeah cause they are in the front!

[@dietbountyicecream1444]

The yugo is sick tho

[@kaidenbrennfoerder4304]

xD

[@raven4k998]

@@dietbountyicecream1444 use a yugo motor to power that go cart lol

[@MikaTheAboveAverageDog]

A benefit of of two 1 kW batteries is that instead of one battery being used at max current draw, you will now have two batteries running at 75% draw. This will decrease thermal constraints, relatively and likely lead to a longer battery lifespan.

[@AliceC993]

And less chance of firey explodey death awful which is a _significant_ risk when running lithium cells at their limits.

[@bob2859]

Assumes they're at equal wear. Could run into problems if one is a bit older than the other, especially at low states of charge. It probably won't be a problem though, considering there's parallel BMS... two in series would have much more issue.

[@MikaTheAboveAverageDog]

@@bob2859 This is all true, it's always tricky to figure out how much information and detail to go into.

[@raven4k998]

yeah but going with 4 packs would also take that even further

[@batugunduz3950]

One reason the hall effect sensors didn't work could be that the controller takes an active HIGH signal instead of an active LOW signal. 2 out of the 3 led's lit up on your second test, but it may be expecting them to be inverted. It may be looking for a single high signal coming from the hall sensor that is interacting with the magnetic field, and when it sees that there are 2, just switching to sensorless mode. Try inverting the signals with an inverter like the 74hc04.

[@mikekopisz1227]

In the R.C. world,we use capacitor packs to get the initial "burst charge" to get that start-up power on initial trigger... especially on a non-sensored setup....also, the C-Rating of batteries,plays a major roll on your burst...C-Rating of your batteries may be too low on those, considering how small of a motor they are designed for....cool concept though..I'm sure you'll get it going once you work out the bugs...liked and subd👍....also,2 12s Lipos in parallel should do the trick as 12s= 44.4v @ 5000MaH x 2 = 44.4v @ 10000MaH(10 amps)

[@94sn95gt]

Thats exactly what I was about to suggest he do, is wire in a start capacitor set.

[@jiffywaxjesus1951]

But he also could blow the lipos if he doesn't have a safety feature for when they get discharged too low. I've seen crazy guys just use a lipo voltage checker and stop using the application once its low 🤯💥🪦⚰

[@mikekopisz1227]

@@jiffywaxjesus1951 agreed...thats a good point you bring up.... definitely gonna need a ESC with voltage cutout....the new EZ-GO golf carts use voltage cutouts on their speed control...he can incorporate that into the loop, he'll be set.. Definitely dont want them going bellow 3.3v..

[@owendavis8164]

Pp⁰p00⁰⁰

[@minecraftster50]

@@jiffywaxjesus1951 I believe that’s why he used the riobi battery because they have circuitry to shut off the battery’s when they are too low

[@alastairward2774]

0:12 "Behind me is a 136cc, 4hp engine" The Yugo?

[@jm036]

Lol even the smallest ones were 0.9l.

[@acreativename7999]

4hp? You're seriously overestimating the Yugo

[@thatguyontheright1]

No, the Trabant. The Yugo is 3

[@AiOinc1]

No, that's 1116cc 52 horsepower. His is a 1.5 with closer to 100.

[@AiOinc1]

@@jm036 Yeah, only Europe got the 900cc OHV 44hp engine though

[@olsmokey]

It's refreshing to hear someone say "I don't know" for a change. I can accept that.

[@xxwookey]

Always take notice of people that are smart enough to say when they don't know. I like this guy. I have projects like this :-)

[@daviddaddy]

Hes Smart, very humble and knows when things are beyond his knowledge and has no problem admitting it. Hes a good man! You can tell.

[@MrJetFormation]

Yeah fr everyone knows something about everything and they say you're wrong. Like man I'm sorry I don't know everything.

[@The_Forge_Master]

When someone openly admits that they don't know something like Rob, it's instant respect points from me, cause I know whey aren't going to BS me.

[@scottrobinson1564]

He knows

[@The_Car_Stalker]

Quality, not sure if i am more impressed with your patience or your brains! I would have put the petrol engine back in or brought a brand-new Go Kart!)

[@raven4k998]

oh geez he made something with a higher build Quality level then the wheego muhahahahahahahahaha

[@raven4k998]

@@alfwok hey if he wants to build it himself let him not everyone wants to buy everything some people like to build and tinker

[@nubreed13]

I'd have just bought a new engine from harbor freight. They are basically clones of Honda stationary motors

[@raven4k998]

@@nubreed13 nothing wrong with that but some people love to tinker

[@nubreed13]

@@raven4k998 yup for video purposes this is totally fine

[@shaungarbry88]

I'm only half way through this video (have to feed the chickens before I go to work) but I am loving it! Thank you for explaining how an alternator works too. Electricity is still over my head at this point, but I geek out on projects like this. Thank you for sharing this build. I hope your son enjoys his go cart!

[@jacobopstad5483]

I've loved the idea of converting an alternator into a motor ever since my dad told me that it was possible when I was a kid. I've always wanted to see it actually happen. Thank you!

[@kyrk55]

15:28 Controller without sensors know how fast rotor is spinning by using back EMF but if motor dont turn there is no back EMF, so controller energize coils to get started. 21:25 Majority of cheap controller have self learning linie, you simpli connect 2 wires together and controller automata search for hall sensors. 23.00 Problem can be voltage from battery drop so much, control thing battery is discharge and simple act like low voltage protection. I start with changing gear ratio look like you motor dont have enough torque to start rolling.

[@esthergennn]

I always love seeing the progression in how he talks about his family At first it was "My girlfriend has a kid" To "My wife's kid" To "My wife and I have a 6 year old" and it just melts my heart

[@BoB-Dobbs_leaning-left]

"it just melts my heart" Perhaps you need to current limit it or it will end up drawing too much power from the brain and you might have a brown out.

[@richardstorer-adam7222]

I could not agree more, it is very sweet.

[@Hood.Housekeeping]

Never raise another's seed. If that's what you mean

[@bayerbear6770]

@@Hood.Housekeeping Never befriend anyone outside your seedline

[@Ramblin_DMC]

I have a lot of experience with these weird Chinese controllers and brushless motors. You need to run the self learn function. One of the pins on the controller harness will activate a self learn function where it free spins itself around and learns the positioning of the hall sensors. Doing the 36 combinations isn't necessary if you run the self learn. Also the BMS in your batteries is what's cutting it out. The controllers don't usually care.

[@mondotv4216]

And 1500W is plenty. Even for a big guy like Aging Wheels. Although it is a Chinese 1500W…

[@rcjbvermilion]

@@mondotv4216 who would have thought that exchange rates apply to wattages, and not just currency.

[@xenonram]

The BMS is cutting it out why? They can put out more than enough current to move that go kart without anyone in it. It's immediately cutting out, and definitely isn't drawing anywhere near enough current to trip over current protection.

[@wiredsim]

I suspect the controller is cutting out because it is not a 36 volt controller (yes what he has is claimed to be a “40 volt” battery, but every one that isn’t marketing considers 10s to be 36 volt). The resting voltage is high enough that it doesn’t fully trip the controllers low voltage function but as soon as the battery sags the controller cuts out. It’s likely a 48v 1500w controller. It’s actually not common to find a 36v 1500w Chinese controller.

[@OlOleander]

What wait WHAT

[@nathanvanorder4431]

Love how you admit you don't know and don't cut the fails out of your videos. Keeping it real. Earned a subscriber

[@frankenstein7722]

I applaud your tenacity, your humor and your smarts. Keep slugging, I look forward to part 2.

[@WayneMoyer]

I guess there wasn't a Weego motor or battery available for the project?

[@whollymindless]

I was afraid he was going to use a Coda motor...

[@DESUDESU24]

The Wheego battery is dead, remember? All the LiFePO4 cells failed. Also that motor can accelerate a car up to 60 miles an hour, that child will blast itself into a tree so hard it will become wood.

[@johnboleyjr.1698]

He wants the go-kart to run.

[@PenryMMJ]

I have this ominous feeling that this could become your son's high school graduation present 🤣

[@jamesengland7461]

3 days late as well!

[@briero]

This could becom Aging Wheels' Binky!

[@sirBrouwer]

@@briero sure that title already goes to the bus.

[@KillroyWasHere86]

High school science project.

[@sirBrouwer]

@@KillroyWasHere86 of his grandchild

[@mikev7490]

As any avid consumer of cool KZbin content, I always had a voice in the back of my head nagging me to try it out for myself. But never is it as strong as when I see the kind of interesting projects you get up to, it really makes me want to put aside my computing degree and pick up some tools (heck, I wouldn't even bother with the camera). But I would probably burn the house down if I tried anything electrical and I don't have any space for a wood workshop (not that wood would be any less danger to my house), so I'll just resign myself to enjoying your content and dreaming of the wonderful stuff I'll be able to make one day ...

[@crispysteve42]

I imagine there'd be some stuff worth making videos about in that computing degree

[@mikev7490]

@@crispysteve42 from a pedagogical POV, quite likely ... but for entertainment, it might be a smidge less likely (or require far more creativity than the wasteland that is my bean tin of a brain can muster).

[@NORMIES_GET_OUT]

"So why doesn't it work? I don't know." This is my maintenance career in a nutshell. Edit: I've been informed that the reason it's broken is that somewhere years ago a maintenance technician slept with an engineer's wife and the rest of us maintenance guys are still paying the price.

[@greenaum]

Have you tried turning it off and on again? This is a joke in IT support, but it's also the most common advice. Because it works 90% of the time. Bloody programmers can't write software without memory leaks, or that gives back resources the computer when it's finished using them. So then when another program, or the same one later on, need these resources, they're not there. If it's RAM they've consumed and lost track of (a memory leak), eventually the system will run out of free RAM and start swapping out to the hard drive, causing thrashing and slowing things riiiight down. So we'd ask you to save your work, if you can, then shutdown and restart. On restart the RAM allocation list is nice and free again, resources are fresh and unallocated, so programs can ask for resources and expect to get them. Everything runs nicely! Except there's still that leak...! The solution ultimately is for the company to fix their damn software and for users to update to that version. But in that time there'll be a _different_ bug in that, or some other, bit of software.

[@NORMIES_GET_OUT]

Software devs are the bane of my existence. Last timeI had an issue I sent 140 GBs of data to one of our software engineers to back up my claims because a control program they had us upgrade in the field had a huge memory leak and would corrupt it's own config files. His reply was, "Huh, well it didn't do that in our field trials."

[@TGears314]

@@NORMIES_GET_OUT as an engineer I can tell you that when we design new things, shit always happens. I spent months working on the binary register of a microcontroller to be able to manipulate multiple dc motors. It worked PERFECT up until installed in the machine. Then EMF from the dang motors caused it to auto trigger since I was using such “basic” components of the controller!! We try, we really do, I am also a mechanic of 20 years so I know the pain of a terribly placed bolt (just as my engine mounts smh) But it still just happens. And most of us are (probably) eternally sorry!!

[@tobiasripper4124]

@@TGears314 aawww man. and here i was thinking that every terrible placed bolt or stupid ass system (or function within a system) was put there on purpose by a very bitter human behind a desk, dedicated to the missery of others. like "ok.. we need a bolt here, here, and there. you know what? fuck it, i havee a terrible day... im gonna put it over there so someone someday somewhere will curse until hell opens right bellow their damn feet". :P

[@imaetech9648]

@@NORMIES_GET_OUT AMEN, AMEN, AMEN!!!

[@natewiebe7815]

Cool to see you working through problems and not hand-waiving stuff. Really helps us learn about different troubleshooting perspectives and approaches to problems. Great video!

[@100PercentJake]

The attention to detail in your editing is getting insane. How many automotive youtubers are using j-cuts these days?!

[@mikemartin2423]

Gotta love his editing now we just need to get this Collab with you two going 👍👍👍

[@bradlemmond]

I love watching Fast Robert work and when he has a clone heckle himself.

[@randymagnum6680]

@@TheFalseShepphard jump cut I think

[@techguy651]

I love that you show the failure process of your work. It’s too easy on this medium to skip past the hard work, but that’s what everyone has to go through.

[@_rlb]

*More warped than my perception of reality* had me in tears. Nice present for the little guy! My 6yo girl would be soooo jealous...

[@TheQuetzal94]

I know dang well that at some point during my engineering school days they taught us about electric motors, but today I now properly understand them, excellent layman's explanation!

[@krijskovacic4938]

The comedy even if unintentional was priceless. Thanks for the extraordinary amount of time you spent on this project. I really appreciate it.

[@seanoreilly1832]

This is exactly how the Elektrek Uncar was developed

[@raven4k998]

with parts that were all Chinese how interesting

[@CAPNMAC82]

Only without a phone-in description of a Gremlin . . .

[@richardstorer-adam7222]

A vicious slur against the designers of the go-kart. For one, the go-kart is way better looking.

[@antibrevity]

Nah, I suspect that this go-kart conversion involved a lot more nuclear engineering to optimize magneto-reluctance and capacitive diractance.

[@BassHeadHD]

You mean Tesla ?

[@YodaPagoda]

I almost expected Technology Connections to appear, offering the explanation that Rob provided.

[@compzac]

pulling up in a chevy volt conversion nissan figaro of course.

[@LeetTrance]

their similarities are uncanny

[@obsoleteoptics]

25:55

[@LeetTrance]

@@obsoleteoptics Hell yeah! nice eye

[@parkerfiskar3589]

The magnetic film was one of the most helpful visual aids ever!!!

[@robincross4625]

While you were explaining things, I was thinking of ways to accomplish the goal. The Alternator normally puts out 3 phase AC. By removing the diodes, you have a ~12V DC motor. I would buy a 12volt 3 phase variable drive to power the motor. What would be controlled is the frequency of the 12 volts going to the alternator turned motor. A cheaper alternative would be to purchase a 120VAC inverter. Using a step down transformer, 12VAC could be derived. Then using a capacitor a 'RUN VOLTAGE' could be derived. A little fidling with the inverter to make it variable speed and the motor runs. Back to basics: There are no DC motors. All motors that run on DC use a commutator to create AC that powers the motor.

[@DJOetken]

Fun watch! Thanks for including all of the trials and tribulations. I am going through a similar situation with a hoverboard motor and esc with no documentation, so hopefully your thought process on figuring out the hall sensors helps.

[@mancima]

Can’t wait to see the follow up to this. One suggestion, add A-Team music to your montage when you are crafting new parts. It seems more than appropriate.

[@axelastori484]

It would be perfectly fitting! But i doubt it, copyright risks

[@MICHGO1]

WE GOT ENOUGH KZbin VIDEOS WITH LOUD, UNNECESSARY MUSIC.

[@DuggleBogey]

Can't he just drive the electric lawn mower? Then you can get some grass cut at the same time! Of course he might wreck it and you'd be down one $5000 lawn mower and possible responsible for the death of a 6-year old...

[@KanawhaCountyWX]

Just get the wheego running again and he can use that

[@ChrisD4335]

you would save more than $5000 in the long run not caring for the child

[@tarstarkusz]

What he should do is ditch this dumb idea and put the damned engine back in it. A simple limiter on the throttle will solve the power (of a 6yo) problem, just like they do with go-karts in those go-kart rental places. I subbed to this channel back when he was rebuilding the Trabant engine. Taking a great gas powered go-kart and turning into a shitty electric cart is just dumb. Trying to convert an alternator into an electric motor for the kart is DUMB. I already knew he was going to run into all these problems because he's not the first youtuber to discover the problem of re-purposing an alternator. Furthermore, this thing is designed for a maximum of 65 amps output or about 900 watts. They are notoriously unreliable with high load.

[@FranNyan]

@@tarstarkusz I guess you missed the part where he said he was doing this for the fun of it. He wanted to do the thing. So he did the thing. If you came here to watch an expert with all the answers do the most efficient and effective thing, you've got the wrong channel (and website, for that matter.)

[@johnmidwest5650]

@@tarstarkusz isn't he doing this for the fun of it?

[@akaHarvesteR]

The magic sensorless rotor sensing thing is called Back-EMF. It uses the residual current from the phase winding that is idling (one of the three always is), to figure out where the rotor is.

[@brianginn6354]

I was quietly screaming this in my brain the whole time

[@djollieuk]

I wrote this in butter on my toast this morning

[@bschena]

you only know rotor position within one electrical cycle (phase). you still don't know the exact position of the rotor itself as there are multiple electrical cycles per revolution. also, the "idling" phase statement is only correct for block-commutated/six-step drives. Sinewave and FOC drive all 3 phases all of the time.

[@djollieuk]

In Permanent Magnet Synchronous motor (PMSM) drives, shaft position information is required for the proper control of the machine. In the PMSM drive the torque ripple generated by the machine has various harmonic content. The major torque ripple generated in a three phase machine is due to the interaction of 5th, 7th , 11th and 13th harmonics in the back emf with the phase current. These induced voltage harmonics are responsible for the 6th and 12th order (electrical) ripple in the torque. In practical applications we tend to see various other harmonic orders in the torque.

[@yodab.at1746]

@@brianginn6354 me too

[@Remowylliams]

First time listener, long time snark appreciator. Your sarcasm and technical muckery has me charmed.

[@charlie_nolan]

I have this exact Go-Kart! Got it for Christmas when I was 9, now I’m 17. Same engine option and paint and everything. However ours will not be getting an electric powertrain, although I’ve done many electrical projects to it during its years of service. Many a front tire have come off during intense drifts. The tie rods are misaligned and many of the plastic pieces covering nuts and suspension components are missing, as well as the cover for the brake master cylinder. However the engine starts with 1 pull in warm weather

[@DanBrideau]

Use the centrifugal clutch from the gas motor on the electric one. That's how the RC car folks did fuel to electric power conversions back when the controllers were crappy. Motor can get spinning before is sees any load.

[@nerdneck2248]

That was my first thought too!

[@brycetononeal383]

“An 5 year old” I appreciate the reference to Clarkson’s ironic incorrect grammar.

[@hugorewucki8386]

I thought i was the only one who got this!

[@The_Chad_]

I was wondering why he said that

[@H4rshi3]

A Egg

[@The_Chad_]

@@H4rshi3 An nose

[@OlOleander]

Imagine if Top Gear didn't have to deal with James May, and also actually accomplished things. Beautiful, isn't it? This is why I watch Aging Wheels.

[@sham_wow_guy]

I feel like Electroboom may have some competition on his hands here.

[@DasGanon]

Not nearly enough footage of sparks, explosions or Robert getting injured

[@mechguy83]

OK Ive found my new YT channel to binge watch. Anyone who can say I Don't Know on a public forum but works threw the problem deserves a sub. You have my respect good sir.

[@grahamswain7356]

This is such a interesting project ,yes I wished I have seen your earlier video . But many thanks for your show !

[@nuthenry2]

the batteries probably have voltage sag, drawing too much power will course the voltage to drop down to too low levels which causes them to cut off

[@TheArcticSaint4747]

Wife: we can get him a power wheels. Rob: that gives me an idea. Wife: oh god....

[@fleksimir]

Slight correction at 2:30 : you separated the phases by 60, instead of 120 degrees. I do not blame you, I've seen it done wrong like this in some university classes even.

[@NicholasAndre1]

That bothered me too 😂 - they are supposed to sum to constant power deliver.

[@McIntosh.R]

18:54 "PP.....Do try to contain yourselves" this is why I am subscribed haha

[@hamfambam4020]

I really liked your presentation despite all your "I don't knows". I appreciate your honesty and like you how won't quit.

[@MrPaige222]

I have absolutely no idea what you're talking about, but I'm thoroughly entertained. You're funny, nerdy, and an absolute genius. Why you don't have 10 times the subscribers is a mystery.

[@RuSrsbro]

You need a startup capacitor, the batteries can't output enough juice to get the motor moving under load.

[@ExplizitDuester]

what size would he need? 2f?

[@RuSrsbro]

@@ExplizitDuester honestly idk, i just know that most Three phase commercial motors have start up capacitors to get them moving

[@DrForrester2001]

Well, on the plus side, at least the video is compliant with Betteridge's law of headlines.

[@8bits59]

Well, on the plus side, at least the comments are full of people griping about the title. The content of the video is fine. If you don't like the title, dislike and move on.

[@MakerFabio]

Hi, thanks for your work. my alternator sensorless was not starting on one ESC, now with a really cheap ESC is starting without hesitation. Once your moving, consider you have high current at no load (i measured 580W on mine @48V), so you need even more battery Alternator to Brushless conversion-current at no load

[@DataStorm1]

@10:15 "that brake rotor is more warped than my perception of reality" LMAO

[@aidenstech1285]

0:01... And we already have a top gear reference. Awesome stuff!

[@JohnDoe-xo7gg]

you're telling me he HAS A KID and still has time to keep a yugo and other cars running?!

[@mrb152]

I don’t know what else he does but it appears to basically be his job. So that helps.

[@televisionandcheese]

@@mrb152 he's an android developer I believe

[@xWood4000]

@@televisionandcheese He quit it. He's full time

[@2010ngojo]

Who do you think is holding the flashlight while the cars are being worked on?

[@CAPNMAC82]

Well "running" may be stretching things a bit . . . And don't forget having to raise chikums and turkeys, too . . .

[@misterakt]

Robert i’m loving how you’ve been posting a LOT of videos lately!

[@aharkness5657]

This was a really great video. I'm an electronics designer and have run these rickshaw setups a little though with an intended type of motor. It does get problematic without the sensors. This video explains a lot of the stuff and puts a very interesting twist to it, too. I did fail to contain myself. Sorry about that.

[@sorenweisshartmann]

Deep respect. I like that you also show the downside of DIY project, but also you very good explanations of how things work. Thanks a lot :)

[@Novur]

Oh man, a month in Kid Time might as well be a decade, the nagging will be INCESSANT

[@brillowcase]

That magnetic viewing film stuff is actually really cool 👀

[@deepseagaming5386]

As someone who has done the exact same thing but for an electric bike, I made a 48v battery and struggled with voltage sag to the LVC (low voltage cutoff) of the controller at 39v. Gotta get a battery that can stay above LVC, otherwise you just get twitching

[@peterzingler6221]

Used the wrong cells then.

[@deepseagaming5386]

@@peterzingler6221 oh yeah for sure, not enough in parallel

[@LatutaEV]

The best explanation of Asynchronous and synchronous motor I have seen on KZbin

[@Rhynri]

For future reference, for about 90$ you can get a FlipSky VESC 4.12 - that will give you a great interface and a wealth of control options including speed limitations and battery cutoffs as well as the ability to output to a display if you want. It even has regen so your kid just has to let off the throttle to slow down. That’ll also give you 3000 watts if you wanted to. It’s been able to turn any motor I’ve put it on and with the FOC & HFI you get great torque.

[@d_wolf1]

Since this comment was 2 years ago is there a better version of this available in 2023?

[@markhenry5294]

I can't believe I only just noticed the Robin's license plate. It says BOLLOCKS .

[@5Andysalive]

can's believe it either.

[@handyhusband113]

As a former electrician, I have one issue. Your drawing of 3∅ waveforms show a gap where all three phases dip into negative, but the whole point of 3∅ power is that there's always one phase in positive territory.

[@lxxsxxx7845]

I assume the drawing was just a crude illustration but you are absolutely right, it was not 100% correct. My OCD screamed in my head too.

[@imaetech9648]

YOU ONLY HAVE ONE ISSUE? Your kidding, right?

[@handyhusband113]

@@imaetech9648 I was a commercial electrician who dealt with 3∅ power quite a bit. I deeply regret not going through the video frame-by-frame and pointing out all the technical problems I don't really know much about instead of pointing out the obvious thing that stood out to me; please forgive me. I'll do better

[@waddayabuying5258]

the problem is like when you apply too little throttle on a brushless RC car it stalls if you apply a bit more throttle on start up it spins up fine so if the speed controller on yours applied more torque from start up you should be fine

[@zakattack721]

RC cars have sensor less brushless controllers. They're designed to operate without the hall effect sensors, so it's a bit different.

[@compzac]

@@zakattack721 his motor was sensorless he added the sensors because it wasnt moving just twitching

[@zakattack721]

@@compzac Yes but the controller was expecting a sensored motor. If you unplug the encoder on an eBike it fails to spin in the same way

[@compzac]

@@zakattack721 was it though, it was working better before he sensored the motor... really my guess is that the poorly translated sticker on the controller and the non existent manual would have told him how to set up the controller, but since the manual doesnt exist and the sticker on the controller wasnt in english how would he have known it probably needed to be programmed. most controllers ive messed with can use either hall effect sensors or back EMF but you have to tell the controller what to expect and in some cases have it learn.

[@waddayabuying5258]

@@zakattack721 my god I didn't realize RC car motors were sensorless even you really have pointed out the obvious there chief

[@wm2008]

The magnetic rotation on magnetic paper got you my like and the sub, magic :D

[@jakbparish]

“Small engines are noisy hateful things”. Outstanding. Subscribed!

[@mjc0961]

"That brake rotor is more warped than my perception of reality." Nice 🤣 (also too relatable 😳)

[@huey-fan8335]

Also a relation to warped perception?

[@williamyeong69]

25:23 Doesn't expect DankPods been in here.

[@tavarish]

cancel my plans. staying in tonight

[@robbie2759]

Same thing here

[@TheMikeyC]

Can't wait to see the follow up video on the go-kart!!!!

[@jackspratt4343]

I have looked at several alternator conversion videos and yours is very, very good. Thank you. You are very good.

[@maukaman]

I think you need to try connecting your “self learn” wires on the controller. On mine it’s two small white wires that fit together. Also it sounds like you might have a 48v+ controller which would explain why it cuts out so fast with your batteries that start at around 42v on a full charge.

[@wiredsim]

Totally agree with this. Just tossing any old voltage batteries on that doesn’t match your controller is doomed to fail.

[@adamdevereaux2459]

@@americansforhire5378 yes it may could have likely might solve it- though it also may have fried his controller if this additional battery increase the voltage too much. The best thing to do is use a battery pack that is the correct voltage for the controller.

[@maukaman]

@@americansforhire5378 it’s possible. At least keep it from cutting out after 10 seconds

[@Josh.Davidson]

Great job! I do hope you added some holes for the DC power supply to breathe as those heatsinks may need some airflow

[@gato38]

The reason it cuts out after 15 seconds are the batteries cant discharge fast enough for the motor controller, you need some capacitors in line to the buffer the slower batteries.

[@CertifyThis]

Ahh, the good ole impact socket drive technique, haven’t we all been there. Sir I just discovered your channel and really appreciate your vid. You are clean and clear with explanation and honest with all of us. You have a future with these videos

[@Xtraweak]

This is the first video of yours that I've watched, it seems like you're using cheap parts that require even more money and labor to try to make it work. But I love it, the trouble shooting is so satisfying. Even though it may cost you in the long run, you've learned from it and you've taught everyone else in the process lol

[@A_Magnuss1]

"PP" -try to contain yourselves. this man is officially cultured!

[@foxabilo]

Throughout this video I wanted you to say "The main winding was of the normal lotus-o-deltoid type placed in panendermic semi-boloid slots in the stator," just once.

[@skoronesa1]

Good ole Turbo Encabulator!!

[@phr3dmcc0y]

See, This is where he messed up. Every seventh conductor is supposed to be connected by a nonreversible tremmie pipe to the differential girdlespring on the "up" end of the grammeters, and he obviously did not have the correct tremmie pipes.

[@skoronesa1]

@@phr3dmcc0y The motor also should have been mounted onto a Baseplate of Pre-Fabulated Amulite.

[@foxabilo]

@@phr3dmcc0y Obviously

[@aslacker]

I was thinking maybe a large dc treadmill motor might work good.

[@davemiller262]

ive taken apart 3 treadmills. they were all fairly high dc voltage (70-100). if you run them at lower voltages they overheat. maybe there's a treadmill with something different but i havent found it yet

[@wuiss__._]

This guys is surprisingly smart, not saying that i thought he was dumb, but the way he explains and uses Knowledge shows smartness

[@keisuketakahashi3597]

That synchronized explanation on magnets are the best explanation. Thanks for the content. And about this project the Suzuki's CIAZ hybrid uses alternator as motor . So maybe you could find something. The ratings were 200Amp and 14.3 v.

[@brianvandy4002]

"I already have theses, so they're free," he says with the new looking open box sitting on the floor behind him...

[@JoachimSauer1]

"... more warped than my perception of reality. So I gotta find a replacement for that." Man, if only I could find a good, reasonably-priced replacement perception-of-reality. Mine's already really wonky. It even tells me that there are billionaires flying into space instead of doing anything useful ...

[@jcpt928]

As Elon Musk has so scientifically pointed out, if humanity does not become a multi-planet species, the risk of us just ceasing to exist, from a single catastrophic event, is at its highest. The more spread out we are, the more likely we will survive as a species - regardless of where we are.

[@AndersJackson]

@@jcpt928 and humanity survive is a good thing? :-) ;-)

[@chriskalkman3815]

I like the fact you aren't fond of electric cars with CVTs, yet here we are.

[@DeadnCold]

He removed the CVT when he took off the gas motor. It's direct drive now.

[@Recreationaltrespasser]

It's not direct drive, it's a single speed transmission.

[@surreyelectrical6192]

I clicked on this video looking for ideas on how to fit an engine to a pedal gocart, because thats what I put in the search box. you had me laughing so much I could hardley watch it. Brilliant.

[@wolf1066]

I've had 4 impatient and nagging 6-year-olds (and, due to poor planning, 2 of them at the same time) so I can relate. Looking forward to watching the update to this project.

[@jonathanree4524]

Aging Wheels looks like Ron Swanson if the events of his life had been somewhat different.

[@thequesomanishere]

I'd be on my way back from harbor freight with a new predator engine after 5 minutes of this hahaha

[@IndyFlick]

My first thought was that you'd need to include a run/start capacitor in the circuit to get the go cart to move under load.

[@steveburke3923]

Ahhh...kinda like an air conditioner or a dryer?

[@isaakwelch3451]

3 phase motors dont need start capacitors like a single phase motor does

[@daxinventor3542]

Good job. I think people who experiment and build things without knowing what the outcome is going to be is a very good idea. Some of the best scientific advancements have come from people like you. Keep up the good work. Greatness takes time to manifest.

[@cowdough94]

that's what I do all day everyday. I'm the best not knowin what's gonna happen sob on the planet. lol

[@flaagan]

Appreciate doing the affiliate link for that rivet gun, was actually talking with my father the other day about wanting to get a cordless drill-powered version since the cheap pneumatic one we had kept binding up.

[@jaquecole5196]

If only there was some stinky device that would have been far more simple to work on and much less finicky

[@jaquecole5196]

On a side note, i would love to get that gasser motor from you, i just got a go kart for my nephew and the motor, while functional, is a massive 8 horse motor

[@DTXBrian]

@@jaquecole5196 Given it cuts out, and given shipping costs... Harbor Freight sells a 79cc 3 HP horizontal shaft motor for about $130. Might be an easier, faster, warrantied option for not much more expensive.

[@jaquecole5196]

@@DTXBrian perhaps, but i like older engines better and part of the fun of the problems is solving them

[@XH1927]

@@DTXBrian I would rather have a seized Briggs than a brand new Harbor Freight time bomb

[@compzac]

@@jaquecole5196 older engines... that engine isnt old enough to be considered old since small engines really havent changed in 20 years its going to be either a tecumseh or tecumseh clone, or a briggs or briggs clone either way its really not different enough to be unique, also he wanted to do this as an odd project the end result he was slightly expecting it to not work brilliantly, it wasnt the end result he was looking for it was the fun of doing it and i sorta appreciate that, watching old small engines is fun too, thats why i also watch mustie 1, but for some interesting idea using a cars alternator to try and make an electric go kart sounds so much more interesting than cleaning out a carburetor or replacing a coil.

[@ffturbo]

Happy birthday to your son! Next birthday he will be what? 21? 22? 7? Perfect age for a kid to learn to drive a trabant!

[@shoopnooop2952]

Have a property fenced in and roleplay communist germany!

[@kuronyaa-san]

The amusing thing is that I was watching ElectroBOOM's details on AC motors yesterday...

[@briantw7096]

Brother... I can't speak highly enough about this video!!!... I have a crate of parts ( from alternator to treadmill sc motor and speed controller)and a frame for a go cart for my Daughter that's been collecting dust for over a year now... I've watched every video I could get my hands on and there either 2x speed no talking set to terrible techno music or are shot 1 handed and completely fail to communicate what they are doing and why... You explained how everything worked before explaining what you did and why. Great job & thank you

[@JB-xp8xl]

I like when relatively smart guys say "I don't know" as you mentioned a couple of dozen times. Its nice that I'm not alone after all. A smart man doesn't know all the answers, he just knows where to find them.