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Servo jitters

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Old 02-11-2007, 05:09 PM
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SPLIT S
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Default Servo jitters

I'm installing the radio gear in my GP Extra 300s and have a question for the group here. I installed the elevator servo and pushrod this afternoon and fired up the radio to check things over. Sometimes after working the stick I can hear a very slight buzzing coming from the servo. If I give the stick a quick flick it dissappears. There isn't any binding on the arm ( L bend with quick link ) with very smooth pushrod travel straight to the control horn on the elevator. Should I be concerned - suggestions?


Thanks,
Dan
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Old 02-11-2007, 06:20 PM
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Ejiro
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Default RE: Servo jitters

Personally, I would not be worried, and from what you describe, I think you also should not be worried. I have that sort of thing all the time on some of mine. Never did any harm. Perhaps one way to put your mind at rest is to remove the servo arm and see if you get the same noise; you may well do.
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Old 02-11-2007, 06:23 PM
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Default RE: Servo jitters

This is normal, don't stress about it.
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Old 02-11-2007, 07:33 PM
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Default RE: Servo jitters

Thanks for the replies - stress I won't.

Dan
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Old 02-11-2007, 07:34 PM
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Default RE: Servo jitters

A pic of the Extra
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Old 02-11-2007, 08:44 PM
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Default RE: Servo jitters

All replies says don’t worry about it, but no one ask the right question. Are they analog or digital? If they are analog you need to worry about it, but if they are digital there is no need to worry because it the nature of digital servo to buzz.
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Old 02-11-2007, 08:45 PM
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Default RE: Servo jitters

Futaba S3004 analog........
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Old 02-11-2007, 08:55 PM
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Default RE: Servo jitters

With all due respect sir why would you want to put this type of servo in your elevator. If you buy these servos locally I would return them, because analog servo usually do not buzz.
Your servo 44oz/0.23sec @4.8v, 57oz/0.19sec @6v
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Old 02-11-2007, 09:11 PM
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Default RE: Servo jitters

Hmmmm.. I have been using analog servos since 1988, never have had a problem. This is a 40 size plane, a 3004 should be no problem at all on an elevator or any other control surface for this particular aircraft. Thanks for the info.

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Old 02-11-2007, 09:37 PM
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Default RE: Servo jitters

Found the problem. The L bend wasn't quite as tight of a bend as I thought. After engaging the quick link it pulled the rod up far enough that the bend contacted the servo arm and would on occasion cause a slight bind. Problem solved.

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Old 02-11-2007, 09:43 PM
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Default RE: Servo jitters

That's an aweful big plane for such inadequate servo's...can you spell DISASTER!
Wanna see couple of hundred pictures of similar disasters..attibuted to many underrated plastic geared servo's on
flight surfaces. Just visit:


www.theultimategamer.net



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Old 02-11-2007, 09:51 PM
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Default RE: Servo jitters


ORIGINAL: bobzilla

That's an aweful big plane for such inadequate servo's...can you spell DISASTER!
Wanna see couple of hundred pictures of similar disasters..attibuted to many underrated plastic geared servo's on
flight surfaces. Just visit:
A 3004 should be fine on a .40 size plane..I thought it was the 50cc version for a second
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Old 02-11-2007, 10:06 PM
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Default RE: Servo jitters

I thought it was the 50cc version for a second
Same here, at first that what I thought
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Old 02-12-2007, 05:01 AM
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Default RE: Servo jitters

I agree..to some extent..but I would not be ripping off any extreme snap rolls. It sure is a pretty 40 size.

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Old 02-12-2007, 07:58 AM
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Default RE: Servo jitters

Thanks for the compliments on the plane. I patterned the finish after an Extra 260 I saw in MA magazine. The max elevator throw on this particular plane 5/16" up. Don't expect any severe stress on the servo.

Dan
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Old 02-12-2007, 08:09 PM
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Default RE: Servo jitters

Bobzilla,

With all due respect. If I was you I would not be doing any snap rolls either. (LOL)

I saw your web site there. Dude whats with all the crashes? Altitude problems or what? LOL

Keep your wings up!
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Old 02-16-2007, 10:03 PM
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Default RE: Servo jitters

Hello all. I have a problem with some servos jerking. First time dealing with digital servos. I have checked everything even tried another radio and rec still samething. Any help would be greatly app.
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