brushless esc what to get???

brushless esc what to get???
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brushless esc what to get??? - 5/11/2008 7:36:30 AM

TheStapler

Posts: 51
Joined: 1/30/2005
From: Sydney, AUSTRALIA
Status: offline

hi

i've just brought a belt cp with no electrics i am going to put my esky brushless 3800kv motor on it as its from my hbk2
just want to know what esc should i get??? i was looking at this 40amp 40amp esc i have a dualsky xpower 2200mah 16c battery i'll be using. will all of this match up nice??

i have no idea about programing the esc with Timing and Frequency so could someone tell me the setting i need to set it up with the esky 3800kv motor

thanks

Post #: 1

RE: brushless esc what to get??? - 5/11/2008 8:03:51 AM

droggy

Posts: 168
Joined: 3/22/2008
From: surrey, BC, CANADA
Status: offline

I have a dynam 30A from KA Planes. Seems to work great, $26

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walkera 5#10 metal / falcon 40 / belt cp / blackhawk 450SE

(in reply to TheStapler)

Post #: 2

RE: brushless esc what to get??? - 5/11/2008 1:16:04 PM

homeunt

Posts: 932
Joined: 2/10/2008
From: Ectobicoke, ON, CANADA
Status: offline

25 and under are firehazards, 40 and over are over-kill, you may wanna look at 30A and 35A ESC. The programming you can do by buying the programming card along with the ESC.

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This hobby is funny, if I got cash, I got no experience.
If i got experience, I see a giant hole on my wallet.

(in reply to droggy)

Post #: 3

RE: brushless esc what to get??? - 5/11/2008 2:44:01 PM

Fly To Chill

Posts: 428
Joined: 1/16/2008
From: Palm Bay, FL, USA
Status: offline

i JUST PUT A 35A ALIGN IN MINE WORK GREAT SO FAR, as far as the stock esc I have belt with over 100 flights on it and it and the esc works great so I guess you can get lucky with them somtimes.

(in reply to homeunt)

Post #: 4

RE: brushless esc what to get??? - 5/12/2008 2:43:22 AM

mcdaniel

Posts: 129
Joined: 2/2/2006
From: stodgo, DOMINICAN REPUBLIC
Status: offline

HI there
I am fan of hobbywing brand, good Quality and decent price get a 30A pentium Esc. works nice in belt cp plug and play, with super soft start set in combination with HWUbec as well.
So far so good.....

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Post #: 5

RE: brushless esc what to get??? - 5/12/2008 4:10:19 AM

Husko

Posts: 82
Joined: 1/3/2005
From: Comstock Park, MI, USA
Status: offline

not trying to sound rash, but to the people replying, have any links to the motors you are using instead of 'i've got a ..amp this, or that'.

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Flying an Esky HBFP. Crashing Belt CP and HBKV2

(in reply to TheStapler)

Post #: 6

RE: brushless esc what to get??? - 5/12/2008 4:48:16 AM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

A good motor/esc to start with
http://www.ka-planes.com/inc/sdetail/8837

for a bigger motor or batteries, you'll need something like this, it's what I have on my Belt CP
http://www.ka-planes.com/inc/sdetail/13661

And I bought this program card, works great, makes it very easy to set ESC properly
http://www.ka-planes.com/inc/sdetail/6082

I also have a pair of these for my HBK II's, not bad if you don't mind waiting for them, and they're not programable with a Hobbywing Program card
https://www.****/hobbycity/store/uh_viewItem.asp?idProduct=6458

(in reply to Husko)

Post #: 7

RE: brushless esc what to get??? - 5/12/2008 4:53:32 AM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

also I burnt up my 3100 by running 20c 2200mAh 11.1v LiPos through it so I'm gonna try this motor with the ESky 25a ESC
https://www.****/hobbycity/store/uh_viewItem.asp?idProduct=5499

I have 2 Danlion motors I was gonna use for my HBK II, but I also just bought this
https://www.****/hobbycity/store/uh_viewItem.asp?idProduct=6387

and this ESC for it
https://www.****/hobbycity/store/uh_viewItem.asp?idProduct=6461

(in reply to nuttcaze)

Post #: 8

RE: brushless esc what to get??? - 5/12/2008 6:05:52 AM

mcdaniel

Posts: 129
Joined: 2/2/2006
From: stodgo, DOMINICAN REPUBLIC
Status: offline

Why not? the stock esky motor for belt-cp.....

(in reply to nuttcaze)

Post #: 9

RE: brushless esc what to get??? - 5/19/2008 12:03:42 PM

TheStapler

Posts: 51
Joined: 1/30/2005
From: Sydney, AUSTRALIA
Status: offline

i have brought a Dynam 40Amp esc. thats the only good one i could find on the net in Australia will it run ok with my belt cp??
i was look for a 30amp but could find any they where cheapo's. should have it tomorrow.

(in reply to TheStapler)

Post #: 10

RE: brushless esc what to get??? - 5/19/2008 3:13:22 PM

N1pster

Posts: 104
Joined: 1/4/2008
From: Newcastle Upon Tyne, UNITED KINGDOM
Status: offline

Just to clarify the situation on ESC's / Motors and batteries.

-

This from another thread and an excellent post by Rosebud6

This is how a fellow pilot explained it to me ( me having a 3800 and a 25a esc):

'Just think of the battery as a water source, and the ESC as a straw, and the motor as you sucking on the straw.

The bat is capable of more, but the ESC maxes out at 25a, so you will never go over 25a because you can never "suck" more through that size of "straw".

Here is how you blow your ESC. If the motor draws over 25a (ie. you hit the ground and it is still trying to spin, but it can't) it will blow the ESC. So I think of the ESC as a fragile, almost paper straw. Because if you suck too hard, it will blow.

Speed controllers are rated in amps and batteries are rated in "C"

So my battery at 25C is equal to 54amps. (I have a 2170 battery at 25C, 2.17*25=54)
Your ESC at 25 amps will only pull 11.5C (25/2.17=11.5)'

Then you add on your gyro and servo draws.

-

In short you will not damage your motor by running 20/25C batteries, a battery can only supply what is required of it. Nuttcaze if you blew a 3100KV motor it was probably due to shoddy workmanship on behalf of E-Sky with regard to the motor itself and the 3100's aren't the most reliable to start with.

PS. Nuttcaze have you found the auto rotation gear on your E-Smart yet?

_____________________________

Ex HBK2-Xtreme / Lama V4-Xtreme / Ex Belt CP / Mini Pred Stock / Twister 440 / T-Rex450SE / T-Rex600E

(in reply to TheStapler)

Post #: 11

RE: brushless esc what to get??? - 5/19/2008 6:07:59 PM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

well I was using a larger battery and flying the heck out of it when the 3100 died so I'm sure it was my partly my fault. But unfortunately the ES600 is shelved till my DX6i gets sent back from being fixed

, but I hope I never have to try an auto with it, the tail belt gear meshes with the main gear on the opposite side of the motor pinion, so there is no acutal way to do a correct autorotation landing cause the tail blades stop spinning as soon as the motor stops, its not tied into the autorotaion feature with the main blades

but its pretty beefy so not overly worried about it

(in reply to N1pster)

Post #: 12

RE: brushless esc what to get??? - 5/19/2008 7:11:30 PM

HowNot2fly

Posts: 183
Joined: 5/17/2008
From: Denton, TX, USA
Status: offline

well, i`m still not getting this esc/motor thing,is the esc`s amp rating relative to the motor amps and relative to the size and discharge rate of the battery? does this mean that if i get bigger battery i have to get new esc? i purchased this http://www.cnchelicopter.com/servlet/the-658/4-channel-rc-helicopter/Detail motor and esc combo for my hbfp, i figure if the esc comes with the motor it must be the right one, i was using the stock 800mAh battery and it worked just fine at first but then esc cought on fire,i send an email to the seller but no response yet, i have a bigger battery on the way from thunder power extrme, it`s 2200 mah 7.4v lipo with discharge rate up to 55 amps ,what would be the right esc for this motor and battery? i need to get new esc so i can get this bird back in the air but i dont know to get

(in reply to nuttcaze)

Post #: 13

RE: brushless esc what to get??? - 5/19/2008 8:16:54 PM

nuttcaze

Posts: 1549
Joined: 1/3/2008
From: Johnson City, NY, USA
Status: offline

quote:

ORIGINAL: HowNot2fly

well, i`m still not getting this esc/motor thing,is the esc`s amp rating relative to the motor amps and relative to the size and discharge rate of the battery? does this mean that if i get bigger battery i have to get new esc? i purchased this http://www.cnchelicopter.com/servlet/the-658/4-channel-rc-helicopter/Detail motor and esc combo for my hbfp, i figure if the esc comes with the motor it must be the right one, i was using the stock 800mAh battery and it worked just fine at first but then esc cought on fire,i send an email to the seller but no response yet, i have a bigger battery on the way from thunder power extrme, it`s 2200 mah 7.4v lipo with discharge rate up to 55 amps ,what would be the right esc for this motor and battery? i need to get new esc so i can get this bird back in the air but i dont know to get

Man I can't imagine a HBFP lifting off with a 2200mAh lipo, its gotta weigh the same as the heli or close to it, but maybe not. If you're really interested in going with all seperates this will be your best bet.

http://www.helihobby.com/html/separate_electronics.html

Otherwise I'd just stick with stock or slo-max motors till then, the setup you were running is kinda inbetween the stock setup and going with seperates so that could be the prob but I don't know cause I run stock with a 11.1v 1000mAh lipo and have all the power I could ever want, and still can't seem to kill my stock 370 motors

Also I can't recommend a esc for that cause I'm still kinda new to this also, so I'm trying to stick with tried and proven methods of going brushless. IMO

(in reply to HowNot2fly)

Post #: 14

RE: brushless esc what to get??? - 5/19/2008 8:35:14 PM

N1pster