Grippa23

hey guys, fairly new to the sct scene.

Ive been spending bit of time and money on my Sc10, i have bought a 12Kg didgital Savox servo and it seems to be playing up ?

Every time I turn suddenly and hold left/right the servo seems to surge/cut continuesly ????

I can turn slowly and it is fine ?

If i am accelerating and turn suddenly at the same time it will surge both steering and the throttle ??

Im running a dx3s radio. The F Rate is 11ms lowest radio can go.

servo specs:Weight (g)52.4
speed 0.08. (does that < mean that my radio is to slow)
torque 12

thanks, kyle

nexxus

iTrader: (315)

What Speed Controller are you using? It sounds like the BEC is struggling under load. Had that myself with a Savox servo.

b121774

iTrader: (90)

Get a Novak Glitch buster or a Spektrum capacitor and plug into the receiver. Problem solved. Savox's are power hungry.

Grippa23

yeh ive got hobbywing 60amp speedy

ok thanks heaps ill give that a go

nexxus

iTrader: (315)

Is it the sensored or sensorless one? The Sensored has a 3 Amp BEC, the sensorless has a 1.5 Amp BEC, and they really struggle with the Savox servos.

Neu_Racer

iTrader: (211)

Only thing that helped me when running a Savox was an external BEC. I had a MM Pro and the BECs are garbage. Hobbywing you may have better luck but if the glitch buster doesn't work, either buy a different servo or use an external BEC from Castle.

Grippa23

its just the sensorless ?

my mate has the same and his seems to be fine and his a 35a speedy ??

So what ESC should I be running do you think ??

Grippa23

im looking at some castle bec's on ebay from like 10A and up what amperage shoulld i need, sorry about the questions just not that up to date with all of it

L.Seehof

iTrader: (2)

The 10A bec is the most common, It will power it no problem. Have you made sure your steering endpoints aren't to wide? just a thought, it pulls a lot of current when steering is fully locked and the servo is still pushing.

Grippa23

Yeh just set to 50% and still surge's

if i add the 10A bec will it draw more battery power causing less run time or will not affect running time ?

nexxus

iTrader: (315)

You can spend $20 on a Castle BEC, but I just use a cheapy $5 Hong Kong one, 3 Amps, 6 Volts and it's flawless. Don't need 10 Amps for a Servo!

Grippa23

Cheers

Will i find them on ebay?

rangerjkb

iTrader: (45)

+1, the servo is not receiving enough power to operate correctly. Adding a Rx capacitor will solve you issue. Spektrum makes a great one for about $6 (SPM1600) part #.

Grippa23

cheers for posting

another question (sorry) but I was given a 7.4v 21kg Savox servo aswell i put this in my hyper 10sc with a venome 13.5t combo with 35A speedy and it seems to be a little slow ?

is that just how that servo is or will that capacitor fix that aswell ?? I have read that they are a high torque fast servo ?

cheers, Kyle

ozzy-crawl

iTrader: (14)

yes a glitch buster/cap will fix it. i make my own 4700uf -10 volts. just solder a male servo plug on. costs around $1.50