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captainlip
27-12-2010, 04:39 PM
looking for another servo,

want a decent model out there, cant be savox as they dont agree with my nosram pearl for some reason, spare ko pro is fine.

what you suggest? ko pro? where do I buy in the uk? or ace servo?

not sure on other servos as ive only ever used savox. thanks.

Andyp
27-12-2010, 06:51 PM
Can't fault ko servos for me , I have used them most of my racing life with no problems, I have just bought a futaba can't remember the number off hand but seems good to

paulc
27-12-2010, 07:01 PM
Like i've put in your other thread Ace 1015 fit and forget

stegger
27-12-2010, 07:28 PM
Like i've put in your other thread Ace 1015 fit and forget

+1 :thumbsup: and cheaper!!

captainlip
27-12-2010, 07:32 PM
my back up is an old ko propo ps-2173fet that is glitch free, thinking of getting a new one of these, what you reckon?

coolcars782
27-12-2010, 07:37 PM
What is wrong with your Ko Propo?

captainlip
27-12-2010, 07:39 PM
its seen better days, but thinking of selling the savox and buying this old ko propo new.

is the fact the ko is analogue its the reason its not glitching like my savox digital?

RogerM
27-12-2010, 08:12 PM
Futaba or Power HD gets my vote

mark christopher
27-12-2010, 08:20 PM
looking for another servo,

want a decent model out there, cant be savox as they dont agree with my nosram pearl for some reason, spare ko pro is fine.

what you suggest? ko pro? where do I buy in the uk? or ace servo?

not sure on other servos as ive only ever used savox. thanks.
could be that when you have shortend the wire in the servo you have goosed it?

never heard of savox running problems on a specific speedo

bodgit
27-12-2010, 08:29 PM
[QUOTE=captainlip;446084]its seen better days,

That quote implies its goosed. Is this the same servo you are selling as new condition.
You may have as Mark says got the internal soldering messed up and untill you fix it should not be selling it.

captainlip
27-12-2010, 08:39 PM
the soldering is perfect trust me and took every effort and time to ensure it was, this servo was shortened and used with the gt2 speedo so I know its working fine!!!

captainlip
27-12-2010, 08:40 PM
could be that when you have shortend the wire in the servo you have goosed it?

never heard of savox running problems on a specific speedo


chap in another thread had the same issue same servo same esc.

mattJT
27-12-2010, 09:21 PM
could be that when you have shortend the wire in the servo you have goosed it?

never heard of savox running problems on a specific speedo


sorry for jumping in here, but was does goosed mean? not heard of this before :eh?:

john333
27-12-2010, 09:22 PM
Buggered I believe

mattJT
27-12-2010, 09:25 PM
Buggered I believe

:lol: thought as much, but am guessing there's a technical meaning behind the phrase goosing?

captainlip
27-12-2010, 09:25 PM
PMSL yes or broken :D

fidspeed
27-12-2010, 09:42 PM
probably going off on a slight tangent but in the very early days of digi servos i had a ko digi and struggled with glitching and general problems fitted old analogue ko (with fet lead, pre brushless and lipo days) problem disappered again . I can only deduce that the speedo couldnt deliver enough power through the BEC to supply the more hungry digi servo .I still only have one digital servo now and 8 ko anologues of varying age and i find i hard to tell much difference between any of them

maybe i'm just s**t:D

regards dave

steelie600
27-12-2010, 10:24 PM
Do you have a powercap fitted to the esc?? If not it will glitch with the Savox. FIT a cap and all your problems will be solved THERE IS NOTHING UP WITH SAVOX SERVOS. Ive run them since launch and NEVER had any fail!!

captainlip
27-12-2010, 10:45 PM
power cap fitted :thumbdown:

captainlip
27-12-2010, 10:47 PM
power cap fitted :thumbdown: its not the servo glitching its the esc stuttering the throttle but this is because of the servo, analogue servo sorts this for some reason. :bored:

discostu
27-12-2010, 11:02 PM
ive said this in your other thread its its probably your layout in your car you did say your rx aerial is running across the top of your esc.

captainlip
27-12-2010, 11:20 PM
tried moving everything and also with it all out of the buggy, no different so cant be that. its defo either the esc, (but works fine with an analogue ko ps2173 fet servo) or its the savox servo, but works fine in the speed passion gt2 esc.

lost at to what to do now but buy a decent analogue servo.:bored:

discostu
27-12-2010, 11:42 PM
your cheapest option would to bye a servo.

i run savox.

captainlip
27-12-2010, 11:47 PM
why would I buy another savox? this one is perfect, never had an issue until the moment I plug it into the pearl.

captainlip
28-12-2010, 12:12 AM
i would rather keep this than buy another servo but im out of options. :cry:

captainlip
28-12-2010, 12:28 AM
sound familiar?

http://rc-racing.org.uk/ar/t6478.htm

captainlip
28-12-2010, 01:22 AM
6 hours of messing this seems to be the problem

http://www.rctech.net/forum/electric-off-road/392019-spektrum-mamba-max-bec-glitching-problem-2.html

mark christopher
28-12-2010, 03:54 PM
6 hours of messing this seems to be the problem

http://www.rctech.net/forum/electric-off-road/392019-spektrum-mamba-max-bec-glitching-problem-2.html

well ive found your fault...... you have a odd ball servo, the one in ur signiture and in your advert title is a different number to the one your selling in the picture, i rekon you have confused the servo, its now so insecure its got a stutter :woot:

captainlip
28-12-2010, 03:57 PM
Lmao!

sly
28-12-2010, 04:04 PM
http://www.spektrumrc.com/ProdInfo/Files/SPM3140-DX3S_UserGuide_EN.pdf

42mb
check weather the transmitter has a ultra, high or low respons settings.

captainlip
28-12-2010, 04:43 PM
42mb? what page are you looking at? been through the manual loads.

if you move the servo smooth and steady both ways no issues, try flicking it, or when it recenters itself quicky and boom blue light and a twitch of the throttle.

has to be the current dropping out.

be interested to see what you mean by the above post.....ill try anything :lol:

sly
28-12-2010, 04:46 PM
42 megabyte download.
switch the the respons setting in the transmitter to a lower setting see if that works.

captainlip
28-12-2010, 05:01 PM
cant find anything about responce settings.

Whiskers
28-12-2010, 05:35 PM
On your transmitter go to system then frame rate and then choose from 11ms(default) for digital and most new analogue servos or 16.5ms for older analogue servos.

captainlip
28-12-2010, 05:40 PM
yes thats 11ms

update

i have just noticed on the monitor of the dx3s that the rx voltage reads 6.4v constant no matter what I do, the moment i fiddle with the servo it drops 6.3v 6.1v 5.9v occasionally 5.3v and throttle jumps like mad

has to be that the servo is drawing to much power? why? how? and how can this be fixed?

could it be the wire from the esc to the rx is damaged/soldered incorrect as its a bit tatty?

or is this still needing a power cap that ive ordered already?

i cant think of it been anything else

Whiskers
28-12-2010, 05:45 PM
Are you using the power cap?

captainlip
28-12-2010, 05:46 PM
ive ordered one that plugs into the rx, that what your on about?

Whiskers
28-12-2010, 05:49 PM
Yes because they are made to stop (or reduce) the voltage from dropping when the servo is under load.

captainlip
28-12-2010, 05:51 PM
but the servo is not underload, is sat on my knee and im flicking the wheel. :thumbdown:

Whiskers
28-12-2010, 05:52 PM
It still has to move the gears. That's a load isn't it?

captainlip
28-12-2010, 05:53 PM
suppose but only under a small amount

Whiskers
28-12-2010, 05:56 PM
Digital servos do draw more current than analogue though. Suppose that's what makes them more precise.

captainlip
28-12-2010, 05:58 PM
funny how it worked perfectly in my b4 with a sh**ty xp 2.4 system but a top of the line spekky :thumbdown:

im just keeping my finger, toes and ball sack crossed that this cap resolves all my issues.

Whiskers
28-12-2010, 06:19 PM
funny how it worked perfectly in my b4 with a sh**ty xp 2.4 system but a top of the line spekky :thumbdown:

im just keeping my finger, toes and ball sack crossed that this cap resolves all my issues.

LOL How can you cross one finger?! :woot:

I hope I don't get this problem when I get my Durango (if I get one that is!)

captainlip
28-12-2010, 07:47 PM
you MUST get one! they are insanely good to build. had no problems what so ever, just this electrical problem.

captainlip
31-12-2010, 04:34 PM
SOLVED!!!

problem solved with power cap fitted, no glitching at all now and has been extensively tested.

turns out savox draws to much current from the RX causing the RX to send the odd signal to the esc. :thumbsup:

just in time for racing this weekend

captainlip
31-12-2010, 04:36 PM
To add where before the current was dropping to 5.1v its now not dropping any lower than 6v

:thumbsup:

discostu
31-12-2010, 04:47 PM
To add where before the current was dropping to 5.1v its now not dropping any lower than 6v

:thumbsup:

you are getting confused current is amp draw for example if your servo pulls 3amps @ 6vDC and your esc is only letting 2amps @ 6vDC though the circitry it will have a compromise voltage so the voltage would then drop to 2amps @ 5.1v for example not enough to run your rx.


stu:thumbsup:

captainlip
31-12-2010, 04:50 PM
either way im chuffed its working after so many hours and posts :thumbsup:

discostu
31-12-2010, 05:11 PM
either way im chuffed its working after so many hours and posts :thumbsup:

thats cool ive put some info on your other thread just to understand what its doing.

stu