geurin
Flying officer
Posts: 11
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Post by geurin on May 31, 2009 22:28:14 GMT 1
My stock esc/receiver fried today  (don't ask, my fault). Can I use a brushless esc with the stock motor, if not what are my options? Thanks. Drue |
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Post by flydiver on May 31, 2009 23:26:22 GMT 1
Nope, proprietary system. RX/ESC are a single unit with special 5-wire servos. It's a brushed motor anyway.
Replace with HZ unit of proper channel or scrap everything but the motor and start fresh > expensive but read a bit and you find you either do that, stick ONLY with the Cub, or leave the sport. 27MHz is a dead end.
You can change the motor too if you want at that stage.
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geurin
Flying officer
Posts: 11
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Post by geurin on Jun 1, 2009 1:02:54 GMT 1
I have already installed 3-wire servos. I have a tx/rx out of a typhoon I was going to use and a venom 25amp esc. Wanted to know if I could use the stock motor with the esc, if not I will order a stick mount adapter and run a venom brushless. Thanks. Drue
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geurin
Flying officer
Posts: 11
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Post by geurin on Jun 1, 2009 1:13:21 GMT 1
Don't quite understand the (or leave the sport comment). I've been flying for years and own several different parkflyer. I read all the plane forums allot but post very seldom. I'm afraid I am hooked and will never leave flying unless I go blind or I'm dead. But Thanks for the reply. Drue
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Post by flydiver on Jun 1, 2009 3:07:10 GMT 1
Ignore the comment, not useful.
You can't use a brushless ESC with a brushed motor or vice versa. Totally different motors.
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geurin
Flying officer
Posts: 11
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Post by geurin on Jun 1, 2009 3:39:55 GMT 1
Copy that flydiver.
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Post by duck9191 on Jun 1, 2009 4:22:36 GMT 1
that's an interesting idea for the manufactures, alot of r/c car brushless speed controls like my castle creations sidewinder will drive both sensor-less brushless and brushed motors, but you don't see this in the air plane speed controls.
you could pick up a brushed speed control if you plan on sticking with the stock motor for awhile. if you do plan to upgrade sometime might as well pick up a radio system and brushless set up now. depends on funds and where you are at in skill.
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Post by flydiver on Jun 1, 2009 5:13:49 GMT 1
How do they do that?
It's 2 completely separate tasks. Totally different.
One is 2 wire and commutates itself (brushed) and the other is 3-wire and NEEDS the ESC to control it (brushless). I can see If essentially it's just 2 separate ESC in one shrink wrap.
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Post by duck9191 on Jun 1, 2009 17:30:58 GMT 1
its a software switch you set in the castlelink software. insteand of use the hall-effect switching needed to make senorless brusheless motors run it will just supply varliable voltage to the motor. you take the red and white wire on the esc and connect them to the + side and the black lead off the esc to the - side of the motor. for high current (low turn) motors you conned all 3 leads off the esc to the hot side and the ground right to the battery and set the software to brushed high current mode. kinda neat, alot of car esc's do this because brushless motors arnt 100% allowed in all classes so it allows you to switch motors easily and run the same speed control. brushless and brushed ecs arnt too diffent, the big thing is that brushless speed controls need to think for the motor to know when to fire the windings and a brushed motor can machanicall "think" by use of brushes controling the motor timings.
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Post by flydiver on Jun 1, 2009 18:01:52 GMT 1
Interesting. Had no idea that could be done. No real use in planes for the most part I suppose so we don't see it.
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