Savox 1258TG not smooth...need help.

[abonto]

Hello guys,

My brand new Savox 1258TG came in yesterday and plug it today. But when I plugged it, it's not smooth, it's very jerky and rough, as if the servo is jumping every few angles or degrees. I plugged it at naza's roll gimble at first, then the pitch and use the POT to move it but with the same result. I also changed the frequency from 50mhz, 100, 200, & 400, but that didn't help. I also plug it directly on the receiver, but it's still rough. I use the Frsky receiver. Am I missing something in here? Programming it maybe? But when I searched the net, the only programmable servo's are the JR's. Anyway, I appreciate any help you guys can provide. Thank you so much!

 

[Bowley]

Might be something ado with the Naza since the gimbal adjustable refresh rate FW upgrade, I have the same issue where I didn't before.

 

[abonto]

Might be something ado with the Naza since the gimbal adjustable refresh rate FW upgrade, I have the same issue where I didn't before.

Oh okay, so what did you do? Just replaced the servo? I actually plugged it directly to the servo, but still have that same rough movement.

 

[Bowley]

TBH, really not sure whats going on with it.
You should try and test the servo on another Rx or servo tester, Are you supplying it with 6V from a BEC?

 

[abonto]

TBH, really not sure whats going on with it.
You should try and test the servo on another Rx or servo tester, Are you supplying it with 6V from a BEC?

Hi Bowley no BEC, I'm only trying it on NAZA and the quad receiver that has 3S battery. Anyway, I tried it with a different receiver and transmitter and it's the same. I noticed that if I move the potentiometer on the pitch as quick as I can, it's quite smooth, but moving it slowly renders and rough choppy servo movement, it's quite an ugly movement to be honest. I think I'm gonna send it back.

 

[Bowley]

Yeah sounds like a duffer!

 

[mbsteed]

Servos are notoriously jerky but an expensive servo should be better than what you describe. I just had a Hitec start demonstrating the same behaviour you describe and replaced it with a spare and it totally smoothed things out. I think the sooner we can move away from servos for gimbal movement the better - those just don't well. At least that has been my experience thus far. I know that is what many companies have started to do (e.g. DJI, Photohigher, etcs.)