Electric skateboard esc troubles (Fires)

Ls1jay32

100 µW
Joined
Oct 19, 2015
Messages
9
Iv recently put together an electric skateboard with an ntm 50mm 380kv, which I understand isn't optimal but it's all hk had in stock.The board has a 40 tooth large pulley and 14 tooth small pulley. I bought 2 e flight 3200 6s and a phoenixtech 115 amp esc (airplane esc) because it was all the local hobby shop had. Anyways on the bench it worked fine. With the exception of some cogging. I tried to ride the thing with a Small rolling start and my esc actually burst into flames.... I bought another 100 amp turbojet esc and it fried in short order also. At least it didn't go up in flames. Anyhow, I ordered myself a hobbywing ez run 150amp and hope I don't blow another $100.00. Was I just pulling too many amps for the airplane esc without a good rolling start. Can you guys stand on your board with it stopped and hit the throttle without frying esc's? The ez run is supposed to have a burst rating of 1050 amps so i hope I'm ok. I also ordered a 200 amp 12-24v circuit breaker to put between battery and esc. I'm hoping the airplane esc"s were just not up to the task. Thanks for any info.
 
its possible that you blew the ESC through too much current. While I wouldn't say the specs on these motors are dead on accurate, if we take the peak power of the motor (listed as 2665W, then at start up there is the potential to draw anywhere from 105.75A (at 4.2V * 6 cells) to 138.8A (3.2V * 6 cells). So definitely in the range of issues, Although I doubt any of these motors truly reach those power specs listed.

I run a turnigy 150A ESC on my setup with a 6364 motor and dont have any issues, so you should be fine with that hobbyking esc.
 
Thanks for the reply, so you think even if the motor was stalled it would only draw a max of 138 amps? That kind of makes me feel better. I hope these were just 2 overrated esc's. I got in a hurry and wanted to ride it badly. I should have waited for proper esc.
 
Ls1jay32 said:
Can you guys stand on your board with it stopped and hit the throttle without frying esc's? ...

The hub motors can start from a standstill stop. Check videos from onloop, elkick and mines. Here's another one:

[youtube]HT_ApL1Ydb8[/youtube]
 
Ls1jay32 said:
Thanks for the reply, so you think even if the motor was stalled it would only draw a max of 138 amps? That kind of makes me feel better. I hope these were just 2 overrated esc's. I got in a hurry and wanted to ride it badly. I should have waited for proper esc.

You are stacking the deck against yourself with that motor and those non-car esc's. You'd have saved $ buying a motor that is better suited for e-board, and at least a car ESC with programmer. I would get a better motor to match your new ESC and have a better chance of success.
 
Those ESC's don't work on E-boards or even RC cars for that matter. The forum is littered with threads and comments about failed Plane, helicopter, and boat esc's...Almost any 120a car esc would be better. Plenty of choices too on good car esc's for 85-100 bucks.
 
astilwell611 said:
"Delayed gratitude" look it up! Kids these days just don't want to wait they want everything right now.

I'm not a kid son. I'm 35 years old. I work 60 hours a week. If I want to spend my money on an improper esc I will. You don't have any input for my question don't answer.
 
psychotiller said:
Those ESC's don't work on E-boards or even RC cars for that matter. The forum is littered with threads and comments about failed Plane, helicopter, and boat esc's...Almost any 120a car esc would be better. Plenty of choices too on good car esc's for 85-100 bucks.
I haven't read very many threads with posts about esc's that dont work. Iv read multiple threads where people have success. (red brick) and others. If you don't have any input why a 116 amp rated esc is blowing in a motor rated at 100 don't reply. Its a waste of my time which is limited...
 
:shock: if your gonna be a douche.. ppl will jus ignore u.

go for 120-150a car esc bare minimum which is usually $80+ USD.

many people have tried airplane escs but many issues.

if your life isn't worth $80 bucks.. airplane esc it is! :mrgreen: Mr LS1 wants a beater/bucket engine? blasphemy.
 
torqueboards said:
:shock: if your gonna be a douche.. ppl will jus ignore u.

go for 120-150a car esc bare minimum which is usually $80+ USD.

many people have tried airplane escs but many issues.

if your life isn't worth $80 bucks.. airplane esc it is! :mrgreen: Mr LS1 wants a beater/bucket engine? blasphemy.


You are the douche who continues to offer no real input. Douche away douche...
 
Uhhh...I gave you solid advice. Fck it though, Have fun with those shit ESC's! :lol:
 
psychotiller said:
Uhhh...I gave you solid advice. Fck it though, Have fun with those shit ESC's! :lol:

You said use a car esc... Solid. An rc car weighs approximately ten lbs. An rc airplane which consumes 116 amps probably weighs 10 lbs. Why is one better than the other. I'm sure you have no idea... It doesn't matter. I got some good answers with real thought in the first few replies. You came along just to waste my time.
 
Yeah, you're right. All esc's are the same dictated by weight. You're build rocks!
 
psychotiller said:
This should help:

I'm sure you tried it and still couldn't come up with a real answer to my question. Now go waste someone else's time, please...
 
Ls1jay32 said:
Can you guys stand on your board with it stopped and hit the throttle without frying esc's?

Yes. Yes I can.
 
Everyone here realizes that the ESC's we use are all built the exact same way right? an airplane ESC doesn't have a different FET configuration vs a car ESC......plus we extremely overload any ESC unless it's the VESC for the most part. These hobby ESC's are designed for vehicles weighing 10-30 pounds, not longboards and people ranging from 160-250 lb.
 
emepror said:
Everyone here realizes that the ESC's we use are all built the exact same way right? an airplane ESC doesn't have a different FET configuration vs a car ESC......plus we extremely overload any ESC unless it's the VESC for the most part. These hobby ESC's are designed for vehicles weighing 10-30 pounds, not longboards and people ranging from 160-250 lb.

Not really.. You would only overload an ESC if your gearing and setup is incorrect causing your ESC to overheat. Granted. Software programming for Airplanes are not the same as Car ESCs which is why it doesn't work. Airplane ESC would work if the software/firmware was correct but it's not which is why you can't use an Airplane ESC. If someone knew how to re-program it with the existing hardware it could be used.

Hobby ESC's CAN be used for RC Car vehicles that weigh 10-30 lbs and they CAN support 160-250 lbs with ease. If your setup doesn't work, it's because your setup is inefficient not because it's a hobby ESC.

Don't be fooled by Tom Foolery "Hobby ESCs are not designed for humans". I have well over 3k miles on Hobby grade ESC's climbing 25% inclines. You just have to make sure your setup/gearing is correct. Psychotiller does as well as many other people on this forum.

Granted.. VESC is a great esc and I support it 100%. Get a VESC :mrgreen: Ben is an awesome dude.
 
C'mon dude...the vesc isn't any different than any boat or airplane esc. I'd bet my 10 posts, two burned up escs, 400kv 5035mm motor and shitty attitude on it any day. Get a grip torque.

Parts is parts...
 
emepror said:
Everyone here realizes that the ESC's we use are all built the exact same way right? an airplane ESC doesn't have a different FET configuration vs a car ESC......plus we extremely overload any ESC unless it's the VESC for the most part. These hobby ESC's are designed for vehicles weighing 10-30 pounds, not longboards and people ranging from 160-250 lb.

my mamba monster rc car esc has powered me for over 1,000 miles, and it just doesn't even care... Before my eboard, I ran it in my rc cars too. It literally brakes, accelerates, and just overall preforms the same when going form 15 pounds to 140 pounds.

even though we weigh more, the amp draw compared to a large 1/8th scale brushless motors isn't that much different, and we aren't accelerating from 0rpm to 10,000rpm in 1 second flat like rc cars do... (I would know, since I've built multiple rc's over the years; both 1/8 and 1/10)

the main difference from airplane to car is the programming... plane brakes are a lot different from car brakes; accelerating a propeller through air is a lot different from accelerating wheels on the ground....

Also, plane/boat esc's usually have sub-par cooling (usually no fan, and water cooling for boats) leading to overheating
 
psychotiller said:
C'mon dude...the vesc isn't any different than any boat or airplane esc. I'd bet my 10 posts, two burned up escs, 400kv 5035mm motor and shitty attitude on it any day. Get a grip torque.

Parts is parts...

lol.. true.. but the software isn't the same.. You already know, I still use my own ESCs.. I don't really run VESC (i have too many just sitting collecting dust)..too complicated to bother when my regular hobby ESCs work great. :mrgreen:
 
torqueboards said:
i have too many just sitting collecting dust :mrgreen:

I want one... lol.

But ya, the simplicity of your esc is it's selling point; and it works: I have one, and don't (yet) have a VESC
 
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