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Thread: Lunges when letting off the steering

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Old 02-19-2013, 05:45 AM   #1
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Default Lunges when letting off the steering

Got a castle link and reset my voltage going to the servo to 7.4v where it should be. Was playing with it a little bit and while it was just setting still and I would working the steering and it would lung forward just a little bit. Also if I had it turn all one way and I let off the steering and let it just go back to the center position it would do it.

Any thoughts or experience with this. The only other thing I change with the castle link was my drag brake. It went from 50% to 100%.
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Old 02-19-2013, 05:51 AM   #2
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Default Re: Lunges when letting off the steering

What electronics are you running? ESC, servo, etc.

Last edited by crawler nut; 02-19-2013 at 05:57 AM.
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Old 02-19-2013, 06:09 AM   #3
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Default Re: Lunges when letting off the steering

Running the stock esc And controller and I am running a castle bec with a savox 2274sg servo.
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Old 02-19-2013, 06:10 AM   #4
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Default Re: Lunges when letting off the steering

And a 55t axial brushless motor
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Old 02-19-2013, 06:13 AM   #5
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Default Re: Lunges when letting off the steering

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Originally Posted by hooty481 View Post
And a 55t axial brushless motor
You mean brushed motor. Since you hooked the BEC up did you pull the red wire out of the ESC plug that plugs into the rx?
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Old 02-19-2013, 01:40 PM   #6
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Default Re: Lunges when letting off the steering

That is affirmative on unhooking the red wire.
How ever I did not know the axial motor was brushed. I thought it was brushless.

I have been running the bec for about 3 weeks with no problems but I had the voltage set at stock because I did not. Have the Castle link.
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Old 02-19-2013, 02:32 PM   #7
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Default Re: Lunges when letting off the steering

I have the same servo in my Exo. The only solution I found to fix the glitching was to lower the BEC voltage. Try lowering the BEC voltage by .2 volts until the glitching is gone. I ended up in the 7.0v range.

Also check to make sure that all of the grounds (black wires) are connected together. Not having all of the grounds connected together can also cause glitching.

Last edited by k7zpj; 02-19-2013 at 02:34 PM.
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Old 02-19-2013, 08:33 PM   #8
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Default Re: Lunges when letting off the steering

Just curious why it cause the motor to lunge. Maybe because it is digital?
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Old 02-19-2013, 09:28 PM   #9
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Default Re: Lunges when letting off the steering

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Originally Posted by hooty481 View Post
Just curious why it cause the motor to lunge. Maybe because it is digital?
It could be it generates some electrical noise when you run it at the higher voltages. This is just a guess. You would need to look at it with a scope to find out for sure.
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Old 02-19-2013, 09:34 PM   #10
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Default Re: Lunges when letting off the steering

It was really noisy before I raised the voltage.
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