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Dec 02, 2006, 04:34 PM
starting at RC
Help!

cheap brushless combo ??


Hi!
I am looking for cheap brushless motor and esc max. 40$ combo, maybe from
elemodel or unitedhobbies.
Something for 6x4 prop and 7-8 cells nimh with trust cca 150 - 200 grams.
I am from Croatia so the shipping cost is much smaller from China then from USA :-((
My main concern is quality of this cheap ESC. Can anybody recommend any of this brands and/or types?
Thanks!
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Dec 02, 2006, 04:48 PM
Registered User
vintage1's Avatar
The tower cheapies are not too bad.

A cheap bell motor and a tower pro ESC will not break the bank..BUT te throttle is very non linear, and you need to adjust transmitter endpoints to make the best of it.

It's a bit all or nothing on a non computer transmitter.

Consider UK or German distributors..I got my one from here..

http://www.micronradiocontrol.co.uk/towerpro_esc.html

That's about $28 US for a 10A..or whatever it is in Euros.

It drives a cheapo bell motor allright. Those are about 9 here these days.


Should get you in under $40US altogether.
Dec 02, 2006, 09:45 PM
Well, now that you know ...
Bigster's Avatar
ESCs don't get much cheaper than this. Reports are just being posted now elsewhere about the quality of the proiducts being received.

http://www.bidproduct.com/part/Produ...S%20ESC_1.html
Dec 02, 2006, 11:45 PM
Registered User
When checking out the budget ESCs it's worth finding out what their low voltage cutoff (most in this price range aren't adjustable) is set to. It's not necessarily a show stopper--I'm still running one l got from BP hobbies and it works fine, but I also know I have to be careful and fly by time rather than trying to get the last bit of "umph" out of the motor. Saving $20 on an ESC isn't much of a bargain if you end up killing a $40+ battery pack.
Dec 03, 2006, 01:31 AM
Registered User
manuel v's Avatar
Check this tread:
https://www.rcgroups.com/forums/showthread.php?t=560144

Manuel V.
Dec 03, 2006, 01:54 AM
Registered User
Quote:
Originally Posted by Sundoggy
ESCs don't get much cheaper than this. Reports are just being posted now elsewhere about the quality of the proiducts being received.

http://www.bidproduct.com/part/Produ...S%20ESC_1.html

wow...great prices
Last edited by 3dflier; Dec 03, 2006 at 02:01 AM.
Dec 03, 2006, 02:43 AM
Plays with Toys
tim_mellor's Avatar
Just make sure you factor in the frieght which in less they have improved used to suck Frieght depending on the item can double the cost of the item

Tim
Last edited by tim_mellor; Dec 03, 2006 at 02:49 AM. Reason: info
Dec 03, 2006, 08:38 AM
starting at RC
Thanks for help guys! What about motor for 6*4 prop and 7-8 cell nimh?
Dec 03, 2006, 10:14 AM
starting at RC
What about this one:
http://www.aarchobby.com/shop/index....d2d5d718be21c9
Dec 03, 2006, 01:18 PM
Registered User
Dr Kiwi's Avatar
Quote:
Originally Posted by zoohr
Thanks for help guys! What about motor for 6*4 prop and 7-8 cell nimh?

If we call your 7 cells about 8v under load, you'll need about a 1800Kv motor to drive a 6x4 and get your 200g or so thrust. An E-max 2205/22 (1780Kv) [http://www.xushobby.com/servlet/Detail?no=198, <$30] gets you this:

7.9v, 6.10A, 48W, 11040rpm, 41.8mph, 242g, 8.52oz, 5.04g/W

If you go up to 8-cells, you'll still only draw something over 7A:

8.9v, 7.20A, 64W, 12000rpm, 45.5mph, 291g, 10.25oz, 4.55g/W

If this is all the thrust you need you will get away with a 10A ESC.
Dec 03, 2006, 01:45 PM
starting at RC
Quote:
Originally Posted by Dr Kiwi
If we call your 7 cells about 8v under load, you'll need about a 1800Kv motor to drive a 6x4 and get your 200g or so thrust. An E-max 2205/22 (1780Kv) [http://www.xushobby.com/servlet/Detail?no=198, <$30] gets you this:

7.9v, 6.10A, 48W, 11040rpm, 41.8mph, 242g, 8.52oz, 5.04g/W

If you go up to 8-cells, you'll still only draw something over 7A:

8.9v, 7.20A, 64W, 12000rpm, 45.5mph, 291g, 10.25oz, 4.55g/W

If this is all the thrust you need you will get away with a 10A ESC.
Bingo!
Thanks!


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