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Author Topic: speed controller  (Read 2746 times)

Joystick

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speed controller
« on: January 11, 2009, 04:26:40 pm »

I'm needing a speed controller for a large model, I got the drive motor from a car (ford radiator) now I'm stuck as to what esc to buy.
How do you chose one. :embarrassed:
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andygh

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Re: speed controller
« Reply #1 on: January 11, 2009, 05:08:25 pm »

Have you got an ammeter (amp meter)?
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Shipmate60

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Re: speed controller
« Reply #2 on: January 11, 2009, 05:39:57 pm »

I assume you will be running the motor on 12 volts.
Do you have any performance figures for the motor?
If not what size prop will it be driving, direct or geared?

Bob
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FullLeatherJacket

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Re: speed controller
« Reply #3 on: January 11, 2009, 05:42:05 pm »

MTroniks and Electronize are both very popular for this type of motor.

FLJ
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dan

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Re: speed controller
« Reply #4 on: January 11, 2009, 05:54:43 pm »

personally i would go with ACTion, never had a problem with them  O0
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Joystick

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Re: speed controller
« Reply #5 on: January 11, 2009, 07:19:23 pm »

well after a bit of trial and error my motor at 12v draws 6 amps stalled dead <*<, I hope that helps. I will be running it with a 85mm 4 blade prop. %) %%
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Shipmate60

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Re: speed controller
« Reply #6 on: January 11, 2009, 07:39:01 pm »

You can use a 15 amp ESC fused at 5 amps then.

Bob
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andygh

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Re: speed controller
« Reply #7 on: January 12, 2009, 08:04:49 pm »

Or a 10A fused at 5v for that matter
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DickyD

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Re: speed controller
« Reply #8 on: January 12, 2009, 08:39:42 pm »

Or a 10A fused at 5v for that matter
5v fuse-------hmmmmm {:-{
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Shipmate60

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Re: speed controller
« Reply #9 on: January 12, 2009, 08:43:54 pm »

The reason for a 5 amp fuse is to ensure it will blow if the motor is completely stalled.
If you use a 10amp fuse the motor can stall and still draw power causing the windings to overheat and possibly burn out.

Bob
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stallspeed

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Re: speed controller
« Reply #10 on: January 13, 2009, 08:56:09 am »

Find out what voltage you will be using to give you sufficient power.You have only hinted what the hull is like.

Your Ford motor that stalls at six amps can only give you about 16 watts to your prop shaft @ 12 volts,3amps.
That figure itself depends on your prop being bang on the mark.

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andygh

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Re: speed controller
« Reply #11 on: January 13, 2009, 11:00:16 am »

Quote
5v fuse-------hmmmmm

Hey, I've got a cold alright?  ;)
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