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Are these servos worth the $?

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Buggyracer28

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Thanks, but I'm looking for as fast or faster than .10. I'm not too worried about torque. Around 150 is good. For my gt, it can be around 120-100.
 
sarge is running the same set as I am...the futaba is .1sec at 120.8oz....they are great servos...the 8611 is a must for buggy steering....that servo is the only one i will ever use for steering ever...they are making a faster version of it soon as well.....
 
use the 94357 for throttle on your buggy, and the 94358 for steering, the torque is more important on steering than the small speed differance. for your truck you really dont need servos that expensive, but if you want to spend the money anway a pair of 94357's will work just fine. if you dont set up digitals perfectly you WILL burn them out.
 
I am also interested in this with regards to setting up digitals, "perfectly". I have run nothing except digital servos in my rides (monster trucks down to three buggies) and have yet to burn one out for setting them up. Were I only dealing with two servos, I might buy the chances of me having just enough luck to set two up perfectly, but we're talking several and I am just not that lucky.

At any rate, digital servos are great for speed, recentering, and torque. All must haves in various quantites depending on the application. Steering on MTs generally needs torque and some speed. Steering on buggies and onroad racers generally need a reasonable amount of torque to manage bump steering and plenty of speed to help the ride maneuver when the driver desires it to. Throttle servos on all rides need just enough torque to give proper breaking action and enough speed to give the throttle response the driver desires.

You ask, well what is the right amount? What is overkill? What is not enough? I'll come back with experience will tell you what is right. Numbers I quote will only give you what I prefer and probably not what the pros use and probably not what you might want in the way of handling for your rides.
 
Well, I think I want to stick with airtronics for my GT since i havent tried futaba yet so i dont know if it would work (that would suck to have a servo that doesn't work for that much $). For my buggy, i want really fast steering and a good amount of torque. I dont mind spending alot on my steering servo, but throttle doesn't matter. Anything around .15 or less. (gotta be able to throttle steer around the turns.) I dont need that much torque in my gt steering cuz the front is so light. I'm looking for speed mostly.

Could i mix different brands of servos in my car? like Hitec in steering and Futaba in throttle or something?
 
I'm assuming your asking me to elaborate digital servo setup? I'm refering to setting endpoints, while some servos are more prone to failure than others, all will fail if you dont setup your endpoints. the largest rate of failure is digitals in throttle position on buggies. this is because people set thier brakes like they would an analog servo, which is setting is maximum point somewhere beyone where the servo can actually pull to. digitals will strain at 100% to reach that programmed point until they burn out thier amplifiers trying. analogs dont behave this way and thats why they dont burn out under that setting. the same will happen of course if your steering servo isnt setup either, turning lock to lock will strain a digital more than an analog that isnt properly set.

if plaidfish makes it in here, he can explain what he went through and how this helped.
 
THIS IS SOOOOO TRUE.....
I also just found out that my Rxs and Throttle servos are fine now and my Tx is crapped out...I have everything but brake......I got 2 bad hitech servos right out of the box and killed 2 right out of the box......in a row
I used the JR 8611 as a throttle servo and it was the first hting I could get to stay working...since then the Futaba S9451 is my throttle servo of choice....and the 8611 is steering....no more servo issues since changing to them......Corrado is saying it like it is.....Digital is looking for 0 perfect zero or perfect 70%...when you limit it's travel to 70 percent it will go to that EXACT position every time....the digitals look for an Exact value of where you want to be and fight for you all the way.....now if it is told to go and something is binding it the littel circuit board in there is increasing voltage signal to the controller....the +VDC increase and hold at that draw until it can do what it wants to do....more current more resistance on the small wire more heat...bang it's done........
 
I wish all servos worked in my hitec rx. When i put a hitec in the rx, everything freaks out. It glitches like crazy. But when there are 2 airtronics servos in there, its PERFECT. I just don't want to buy a $75+ servo and have it not work... So i think ill just stick with airtronics. I'm afraid that if i bought a futaba it will make my servos glitch. If this happens ill get another one of my airtronics rx's cuz i KNOW they work. I probably should anyway.

I dont really get the concept of these digital servos. Is it a really big deal to change the end points? thats simple... I do that all the time with my radio. It seems like you guys are making it sound extrememly inportant.

when you limit it's travel to 70 percent it will go to that EXACT position every time....the digitals look for an Exact value of where you want to be and fight for you all the way.
Click to expand...

I'm not really sure what good would come of lowering the % the servo is able to travel.

now if it is told to go and something is binding it the littel circuit board in there is increasing voltage signal to the controller....the +VDC increase and hold at that draw until it can do what it wants to do....more current more resistance on the small wire more heat...bang it's done........
Click to expand...

How does this happen and how can i prevent it? Sorry, I'm kind of a newb with high performance servos. I dont really pay attention to exact %s... I just adjust the sero untill it's perfect. Sorry, for not getting the concept.
 
its like when you set up your steering and your servo has more throw than your chassis needs, you restrict it to the example 70%. if you dont do that, you will blow the servo. with digitals always adjust from less travel than you need to the proper endpoint, this will help to ensure it isnt straining the servo.
 
Ohhh, I see... I knew what that was cuz i had to do it for my x-term. Thanks for clearing it up.
 
Interesting information on the endpoints. I understand all of it; however, I have never set the endpoints on any of my digitals and have not blown a single one from normal driving. The only digitals in my rides to get fried are those that have been through the mud or water deep enough to cover them up.

Aside from that, I had one come bad from the box.

Since, I do not have experience to the contrary on the endpoint adjustment issue...I can't really nay-say it.

As for the question asked about mixing servos from one brand to another, that depends greatly on the brands in question. Some do not get along so well, and most manufacturers will state the compatibilities they have or do not have in their user manual.
 
question....

i have burnt up 2 hitec 5925mg servos on my throttle on my buggy here recently

i had the endpoints set as follows...

i pulled the trigger till it opened up wide open and backed the EPA off to almost 68% (till the throttle started to close the slide)

on the brake i did it the same and i think it was at like 77%

so why am i still burning up servos...??????

i have the futaba 3pk with the 1024 r113ip reciever.....is it because the servo is digital and i'm using pcm?...my steering is a regular 945mg and i have to use PCM to get it to work...but i thought you could use digital in a analog setting...just not the reverse....

someone help please?....i'm fixing to order a 94358 ...357 is sitting here and i'm scared to put it in till i eliminate this problem....

thanks in advance
 
its probibly you braking adjustment. back off your epa until you have no brakes, then bring it back up to the point where the tires just lock up at full brake. thats where you want it set, and no more. i burned up 1 of the exact same servo last year and since I've changed how i set them up, i havent burned one up since. and i run a 5925 for throttle on both my buggy and truggy.
 
The hitec seros seem very suseptable to brake adjustment corrado, i had same thing happen to mine
 

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