EL go kart

[jorgeneo560]

the clutch is comercial or home made?, its centripetal right?, its from a chainsaw?, i am thinking to build an electric small car to travel in the city.

the nig outrunner hk motor

[SLIMEBASS]

Svensk :)



[sssoibaf]

molto bello pero' devi mettere una frizione piu' potente

[yellowsupra7]

I like how you have to "hot wire" your own go kart to start it.

[fairyheli2]

are they inrunner motors?

[sopdadope]

These turnigy motors are incredible! I have the smaller 6374 pushing my electric bike to 50mph - check out my vids!

[fullschub]

Hey, great work!

you first used 4pieces. 12v Pb and you have no trouble with the voltage? Because the motors and the esc`s are for max 12s (4,2 x 12 = 50,4V) and if Pb batteries are full loadet, they can have more than 13,8V on all 4 pieces. is this 55,2V! Whitch esc`s do you use?

king regards

[butterfly91188]

lol get a better clutch

[PyroCube]

Why are there any Pb Batteries on the kart?=)

[aqwut]

Awesome dude!!

[rcfreak363]

was the smoke at some times from the tires or the motors?

[sn0wchyld]

@rcfreak363 it looks like its from the clutch... check 2:00

[rcfreak363]

@sn0wchyld makes sense

[Pedrohlt]

I think you should put hall sensors on the motors and use ebike sensored controllers instead rc sensorless controllers. This will give you much more power and then you could take the cluch off and use all the torque of these motors.

[Alster370]

so are you running all three motors at their full power? Because I am planning to do a mini chopper powered by one of these but im running it at 48v 100a.

[clioharper13]

How are making the pedal work with the servo tester?

[rcAllDayLong]

Fantastic!

[Zanderlehn]

Mmmmm, Det här måste vi lära oss av.

zoomcamp.com

[GiuseppeGibilmanno]

hi ,nice.. but i don't understeand how to join the motors axis.. there is solder ?

(sorry for my bad english)

[RoboTekno]

I love this. I've been looking around and it seems people have been throwing these turnigy motors on quite a few projects. Great job. It sounded like the motors needed some timing adjustment, has that been a problem? Also, that clutch didn't seem happy, but smoke is always fun :P

[sopdadope]

@RoboTekno These motors are great for the money. I've put in ceramic bearings on my 63-74 and it's gone 4k miles without a hitch on my ebike.

[crazyobama]

awesome project.........10*

[patrickza]

What do you think the limit would be in terms of number of motors that could be connected to each other. Could you run a car with 10 of them connected?

[nick14kn]

@patrickza

THe problem wold be cost. esc + controller+ batteries+ motor, would exceed the price of a etek motor that may be able to move a small car like a honda, since majority of the wieght will be taken out when you put in a brushless motor

[tomeczek0295]

It makes sound like a Jet Engine!

[stinbro40]

Clutch smokin the whole time! I love it! Very cool project.

[xxwzaebd]

I would like to use this motor for an ultralight plane, about 6 of them on a plane. Would it work, or do I need more power?

[tolikamashina]

that is just wicked sick, im surprised it actually hauls that quickly

[inetTVchannel]

Look!

With 6-8 such motors you can make small 150-200 kg 1-person airplane that will fly!

[accuratechaos]

That horrible screech sound he gets sometimes in bursts, is that the esc's freaking out and going out of sync or something?

[KenjiiFox]

@accuratechaos That is correct. These are sensorless speed controls. Sensors could be affixed to the Outrunners to solve this, but with the clutch it isn't as bad as it would be trying to start those motors under load.

[ReXoRify]

har ni gjorten? =P

[442paul]

thats nuts, i want one :)

[stonebayrocker]

du e CRAYZE ! lite kult prosjekt man ! drit fet ! respekt!

[Speedtospare]

I run the turnigy 80-100-B in my super pocket bike. I need sprockets to finish the project. I used an R/C turnigy 200a controller and an item called a throttlizer. The throttlizer allows me to use a scooter type throttle, limit current, have a low voltage cutoff, and a heat sensor for the esc. It saves esc's and makes everything more managable. It would allow you to run a direct drive without the fear of killing the esc

[narknole]

Jag undra vad det är för motorer och var man kan hitta de.

Grymt bygge hehe

[emilen2]

How do you make sure that the motors have equal (measured) kv's, so none is overloaded or whatever problems that might arise?

Most fascinating setup I have to say!

[mobilisCruise]

Wow, that little clutch is smoking bad.

[iulian207]

He use a clutch because the speed controllers for airplanes do not have big torque at the low speed rpm, to not harm you when accidentally starts the propeller.

[rodneysch]

Get rid of that clutch

[littleboblives]

i still dont see why you need a clutch, electric motors have torque at low rpm. unless you were having coging problems with brushless

[signetguy]

He used a clutch because he used a 100Amp controller.

He need to use 200 Amp controller because the motor Amp is 150

[peterm8133]

why is there smoke coming from the motor ??

[signetguy]

It's the clutch n't the motor.

[signetguy]

Hi,

See my projects in evalbum

(Owner guy w. )

[MrSmiley151]

hi!

This is awesome! I was thinking of doing exactly this for a high school project this year, i think now im fully convinced to do so! :)

wanted to ask some questions if thats cool:

How did you get the speed controllers to work with the foot pedal?

Any help is appreciated !!!

[tenkikun]

I think you can use a sensor to a P controller and connect that to the actual power controller?

[surfervince]

Hi, do you have a blog or more info regarding this motor power configuration. I would like to place something similar into a paramotor. 2 motors to replicate a 20hp engine or would I need 3. I want 45 mins runtime and total weight to be 20kg max ??? LiPo ?? ? pls help.

[sabongi]

Why did you choose to use a clutch?

[surfarn4u]

Thanks to mike548 for this ansver of the common question:

The reason he has a clutch is to save the motor and controller. The controller doesn't have any sort of way to manage the current, and the motors can't take a dead stall of current going through them. That's why he is using the clutch.

[molak34]

@surfarn4u

What controllers are you using ?

Get a better clutch..

[anothershakey]

@surfarn4u This doesn't make sense, you can just do overcurrent protection or buy an ESC, which already has that.

I'd love to make a go kart to, but I'd use two motors, one per each rear wheel, and do electronic differential, so that it sticks to the road! :-)

[tadythefish]

@surfarn4u The problem is that these motors can't start with a full load. the problem is that the position of the rotor needed to calculate the phase sequence and speed is determend with Back EMF. If you would want to start the motor with full load the motor would have to have Hal efect sensors to determen the rotor position or an optical encoder.

anyway thumbs up!

[mike548]

@sabongi As stated, the reason for the clutch on this setup is to limit the current the motor will draw at a dead stop. If the cart had a direct drive setup, the current at a dead stop would probably exceed 200 amps, and the small RC controllers used for this are only reliable for 100 amps. Unfortunately, these small controllers dont have a way to limit the current so they would burn up without the use of the clutch.

[spencercjohnson]

@sabongi There is no regen system, so letting the motors spin at high rpm would send huge current back though the esc and fry the esc

[anothershakey]

@spencercjohnson ESCs just switch MOSFETs, and they all have a buil-in diode, so this won't be an issue. If your MOSFETs don't have that (really doubt it) you can just add them. It's 6 diodes per ESC, will cost you peanuts.

[CeleronS1]

POOR clutch :D

Do you think that brushless won't propel you from standing position? Or burn down?

[EVLPropaganda]

That is awesome my friend. I was reading your post at HobbyKing and thought i would check it out. Very nice build. You have inspired me to come up with a project. Thanks brother. HobbyKing is awesome as I'm sure you are aware (-:. Take care.

[jamisongo]

How much runtime do you get on one charge?

[surfarn4u]

I was using about 60% of the total 22 Amp, hrs for 8 minuit run.

[pyroman675]

@surfarn4u 8! minutes! only, wow holy crap, bet half that is wasted with that clutch

[satellite98]

lol look at that clutch burn :) e power all the way

[leandrocreation]

Do you think i can use one of this motors to build a eletric motorcycle , to run at 50 kph?

[signetguy]

You can do over 100 kph.

[signetguy]

with 1 motor for eletric motorcycle.

use li-ion battery.goodluck!

[monstercameron]

looks nice

[ipodfernando]

This kart is wonderfull please talk me motors of airplanes, the power watts RPM more info

[dtiydr]

Satan vilket drag och 90 knyck är ju sjukt och det va ringen dålig acc heller. Bra gjort!

[MADHELINELLY]

fantastic.....................­....now how about building a electric human helicopter...regards nel

[ortcloud99]

I am confused why is the outer casing on the motor spinning ? 1:58

[Airazz]

Because they are using brushless outrunner motors. Normaly these motors are used in a large scale RC model airplanes.

[maxpower700]

it's Called Outrunners. it's complicated

[Gotmail0doh]

fan vad cool

[Pedrohlt]

congratulations, but I think u should use without clutch.

[BradfromCanada]

My dad has a old flymo hover craft lawn mower and the 2cycle engine is starting to fail. I'm considering changing engine out for one of these motors. I wont need a clutch cause we can let the motor spin up before we put any load on it(cut the grass). Good job.

[dhymers]

nice kart, but imho those motors are a waste of money, you can purchase 15kw motors for karts that you can run direct drive, no clutch. My assumption is you had to run a clutch because those motors have little torque to get started ?

cloud electric (google) has kits for about a grand.

Impressive, but odd.

[SirCuddles2006]

where is the source for the 15kw kart motor?

[dhymers]

cloud electric, google

etek motor or similar replacments, google.

[mattetjus]

Please read the above posts, the clutch is there so that the controllers dont burn... -- Comparison of data: -- Etek: 14kW peak, 17kg, $550 controller: alltrax $400+, 3kg total: $950, 20kg Turnigy 80-100: 7kW peak, 1.6kg, $150 controller: turnigy 100A ($100, must have 3 motors to match etek) or kontronik 150A ($300, only 2 motors to match the etek) (3motors, turnigy controller, need clutch), 5.3kg, $750 or (2 motors, kontronik, don't need clutch(?)) $900, 3.5kg

[mattetjus]

the data comparison is strictly paper world, but, for the same or lower price, you get the same power and a much lighter alternativ compared to the mars/etek...

[dhymers]

good point, but massive acceleration is lost with a clutch, at least as I see it being used here.

Great work though, I am thoroughly impressed.

[HEXolam]

what motor you use ?

[emeded]

I would assume Turnigy 80-100-A 180Kv Brushless Outrunner. That monster generates 7000W. He has 3 of them. He claims 15kW.

[shittybill93]

he used a turnigy on hobby city . com

[sambigbear]

Loom at 0.54 there is Turnigy servo tester attached to gas pedal wires.

[1016JP1]

Quick questions: could I use one "Turnigy 80-100-A 180Kv Brushless Outrunner (eq: 70-55)" for a bladez electric scooter motor replacement?

or will this work for an electric scooter? - does it have enough torque?

thanks

[emeded]

Are you serious about torque? This monster creates 7000W on 48V pulling roughly 145amps! Probably 3 of them could push a car!

[1016JP1]

Hey thanks man for the info, I wanted to know about torque to build a super fast electric scooter.

[mistafixit666]

the only problem i see is that the motors are all fixed to the one infront of the other. you should use a rubber coupling or clutch on each one. the speed controles will be all out of wack because they wont be able to time the motors correctly. He used a turnergy servo controller to opperate the speed controls.Good job that things fast hahaha.

[leparskas]

LOL you are burning the clutch like mad man, you need a bigger one x100 elec has way to much toque from 1rpm

[dancingman4u]

congrats on your wonderful combination, the out runner motors are wonderful, I admire your courage in putting three togeather, and I agree with others...why the slippery clutch...what you need is better controllers. or better still....a single controller...big enough to power all three motors. you could build your own..others are doing that. you could also increase your chain size too..those motors would kill that chain under full power. As for the batteries...just get some more lipos...!!

[surfarn4u]

Hej Axel, Blybatterierna som finns i början av filmen blev aldrig använda för dom hade blivit förstörda av att stå på betonggolv vilket jag i efterhand har fått information om att man inte får ha blybatterier förvarade på det sättet.

Biltema bytte batterierna och det blev mina gamla modellflygsLiPo i stället.

[jetski550]

Hur är det möjligt att den här myten kan leva kvar? batterier blir inte förstörda av att stå på betonggolv...

Nåväl, med det sagt vill jag berätta att jag är väldigt imponerad. Finns det mer information om den här på nätet? forumtråd eller liknande?

Kopplingen verkar inte klara momenteti videon. Har ni lyckats få den att fungera bättre?

[teslanumbertwo]

can I have the plans for this or like specs on the parts or a way to buy this?

[JeromeDemers]

This is amazing!

I saw you comment on hobbycity about the speed controller.

I am modifying a little scooter with brushless and will use that controller. Do you have a personnal website with detail on the gokart?

[ninjamonkeymonster]

thats pretty impressive with those r/c outrunner motors

[tully712]

I'm test driving my batmobile TUMBLER GO-KART

[mattetjus]

vad är det som låter när ni gasar på ibland?

"weeeeee... blöööp...weeeeeeeeeee' :)

helt underbart projekt för övrigt!

[surfarn4u]

The strange sound that you can hear sometimes is when the speedcontrollers are running out of sequens in the timing.

One big reason for this is that the 4 first minuets is only 2 of 3 motors connected, one of the speedcontroller cables had went out of position. After all controller in action it was more notisable more power.

The sqeeking noise came sometimes anyway but that is probably solved in the latest version¤ of the controller that is working with higher frequency.

[kranjFLY]

oh good! yes turnigy motors and speed controlers with the BIGest power. why do you using a clutch? perfect!

[MENFOERHELVETE]

Trafikrapport ftw

[Pontarre]

vart ifrån köpte du motor med tillbehör??

[tsricco]

any problems with the motors burning up or is it just the controllers?

[surfarn4u]

One of the motors broke down a little due to vibrations after the motorshaft had been bent so it gave unballance so the motor on the opposit side of the chain started to make some noice so I stopped the run for that time.

It is very powerful motors that I have overloaded with purpouse. The controller needs to be careful loaded not more than rated 100 Amp for each controller and not for long time without special cooling.

[mike548]

The reason he has a clutch is to save the motor and controller. The controller doesn't have any sort of way to manage the current, and the motors can't take a dead stall of current going through them. That's why he is using the clutch.

[heheman3000]

What are you talking about, the whole point of the controller is to manage the current.

[mike548]

The controller he is using doesn't have a current limiter. Most controllers dont have a current limit, so he is pulling more than 100 amps for a long time eventually they burn up.

[heheman3000]

Nah. Much more likely reason is that he is using brushless motors which don't commutate at stall loads (versus DC brushed motors), so the centrifugal clutch is there to allow them to spin up before load is applied.

[mike548]

That's true but the motors will still draw over 100 amps in peak conditions, probably over 200 amps with a motor of this size.

[teamtestbot]

Wowser. Seriously - remove the centrifugal clutch. With the gearing you have on the triple motors, you are almost guaranteed to wheelie if they are directly coupled to the wheels. An electric like this does not need a clutch. That smoke is thousands of watts of wasted power!

[gabrielemoro1]

Hello!First of all compliment, i absolutely love this Kart.Great!It seems also not really much expansive, could you be so kind to say me how much did it costs the electronics parts, esc motor..etc.Eventually, where i can find all parts to do the same thing? Thank you so much in advance!Ciao from Italy.

[Frihalsad]

Jag vill ge en eloge till byggaren/na av denna kart!!

Det är sådana här människor som Sverige behöver för industrins framtid.

Lycka till :) !

[superbeeblaze]

man u need to ditch that slip clutch. those things are weak.

nice cart tho, seems to scoot pretty good.

[frog45678]

why do they even need a clutch on an electric kart?!

[superbeeblaze]

You know good point. Electric motors have such better torque bands than a gas motor, that i think even direct drive it would still scoot pretty good.

[frog45678]

ya strange design

[fathead431]

these are brushless motors, they suffer from cogging, i.e they sometimes jitter from back and forth giving a very rough start

[marcelomar2]

so the maximum runtime with these batteries is around 15 minutes?

[ultramat14]

Yup

[canuckcorsa]

I am considering using multiple motors of this type for a electric Geo Metro but I was concerned about syncronizing multiple controllers. How do you goaboutt doing that? Also. how do you operate the controllers which are designed (I think) for an RC input?

[ultramat14]

He uses a servo tester with a reciver battery.

[oxygenmonkey88]

all that nice equipment and you couldnt put in a better seat?

[leviterande]

el äger

[knoxieman]

Brilliant!

Outrunners are a nice light powerful choice, my only concern is their continuous power rating not sure they would cope with those power levels for extended periods but a lot of fun whilst they do!

Knoxie

[abevil30]

Nice !

[mikefigger]

Great idea! I made an ev dirt bike with 2 of these motors! They are powerful but the esc is very easy to blow up when you start from a stop! I guess thats why you used the clutch! Nice! WHat is the amps draw at top speed?

[surfarn4u]

The Amp draw is more than 200 Amps of 300 possible before the controllers burn. Now I got a new clamp meter that can handle 1000 Amps. But one of the motors has broke down

and I hope to be able to repair that one soon.

[beppino1985]

your engine ar for rc airplane? sorry for my english.....is hacker motor?how many euro you have pay?

[surfarn4u]

The motors are Turnigy 80-100-180kv

and controllers are Turnigy Sentilon 100A HV 2-12S.

[surfarn4u]

The reason to use a clutch was to eliminate the high Ampere draw from zero speed and get more torque from the start moment. Next step is to remove the the springs in the clutch and see (watt) is going to happen. The controller I am using is very cheap and has no current limiting function so last time I tryed to make a testrun I toasted one of the motors. I hope to be able to repair and make a new test befor the snow comes to Stockholm.

[BradfromCanada]

Congrats! I very aware of how the controller actually works and you got it right. Very high currents at no RPM. I believe this is what GM also did in thier EV1. It may not of been clutch, but a locking tourqe converter of some kind. Looks like you are having fun in life and that is all that matters.

Brad from Canada

[huntersky123]

dude why are u using a clutch?

[unaclocker]

No doubt. Electric motors make all of their torque at 0 RPM, this thing would be far faster without a clutch.

[meanzick]

jävlar va den gick gött :)

[surfarn4u]

The clutch is from a 120cc Go Kart motor but the return-springs in it is too strong so next time I will try to run without the springs. The clutch is slippering some times.

[HellfireGenius]

Den ven ganska bra :0 Vad är det för koppling?

[jackack]

kanon smart o tuff :)

[1curt12]

still a smoker

[mikaelldnn]

Vicken "leksak" Lasse //Micke

[jostraka]

fan va kul