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 Post subject: Servo Reversing
PostPosted: Fri Oct 26, 2007 7:27 am 
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Location: 5mins from the track
Has anybody tried to swap the pos & neg around on the servo lead to reverse the direction?

I have just installed some higher rated servos in my heli but they run in the opposite direction to the stock ones and the transmitter has no reversing switches on it....

Worth a try? Or am I pushing it? :?

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 Post subject: ..
PostPosted: Fri Oct 26, 2007 11:39 am 
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guessing it should be ok, just the neg and pos, leave the signal wire alone


let us know... :lol:

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PostPosted: Fri Oct 26, 2007 3:42 pm 
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ill be fine Mark


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PostPosted: Fri Oct 26, 2007 8:32 pm 
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Location: 5mins from the track
I swapped the red and black around - left the white...

Blew the servo up in an instant :cry:

Any other ideas? (apart from puchasing a expensive transmitter :cry: )

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 Post subject: servo
PostPosted: Fri Oct 26, 2007 9:38 pm 
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Hi Mark I have just thought about your problem I think you would have to swap the actual motor leads inside the servo as the electronics need the polarity to be correct but dont know if the feed back position indicator will be affected by the reverse funtion. you could try this on a rubbish servo first.

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 Post subject:
PostPosted: Sat Oct 27, 2007 8:56 pm 
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Swapped the two motor wires around and the servo just spins like crazy. Put the wires back around the right way and it works fine.

I give up - now looking for a transmitter with servo reverse function.... :roll:

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 Post subject: servo
PostPosted: Sat Oct 27, 2007 9:09 pm 
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I think the spinning has something to do with the feed back as it would be looking for the signal a certain way can you turn this upside down so the direction of the servo matches the feed back sensor position.

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PostPosted: Sat Oct 27, 2007 9:18 pm 
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That makes sense pete.

I dont think I can turn the pot sensor thingy around

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 Post subject:
PostPosted: Sun Oct 28, 2007 8:16 am 
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if you have reversed 2 servos on the same stick, try rotating the gimbal assembly 180 *, as in pull apart the radio remove the whole stick assembly rotate and reassemble

the other thing to try is find out if your radio is positive or negative pulse and buy servos to suit


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 Post subject:
PostPosted: Sun Oct 28, 2007 12:06 pm 
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Yeah I thought about rotating it but the trims have to go with it and the boss stays the same, so there is no room for the trims.

I just purchased another transmitter cheap of TM that has reversing - hope that solves the problem.

Im getting chopper withdrawls :shock:

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