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Old 02-21-2012, 03:58 PM   #1
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Default Rubber grommets on servos???

8ight 2.0 buggy.
Racing off-road.
On this new Gen 3 radio tray is there a disadvantage to using the rubbers other than a slight change in CG from them sitting a touch higher?

The reason I ask is when my new gen3 tray got here I let the local hobby pro put my new servos, tray, radio etc in and he doesn't use the grommets. Is this common practice? I'm about to put different new servos in and kind of like the idea of shock absorbers on my HV stuff.
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Old 02-21-2012, 04:12 PM   #2
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I always use the rubber gromets on my servos. There is alot of vibration and if will loosen a screw from being tight im sure its not good on a servo's gears. But i coud be wrong im sure somebody will chime in with the real answer.
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Old 02-21-2012, 04:32 PM   #3
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I've always used them to dampen the chassis vibration on the servos and to prevent over tightening the servos to the tray which causes the tabs on the servo to spread and snap.
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Old 02-21-2012, 04:36 PM   #4
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if you want your servos to last, use the rubbers, if you want and are capable of noticing a 1/8 cg change on the car, and a more direct feeling with a chance of blowing servos...don't use the rubbers. A lot of the pro's (the sponsored ones) every little bit counts, and they trade equipment longevity for results. It comes down to how deep are you pockets if you want to run what they run, the way they run it.
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Old 02-21-2012, 04:42 PM   #5
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Rubber puts more "give" into the system and servos last longer as they have less tendency to get strained by chassis flex, hard braking, EPA not set correctly, etc.
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Old 02-21-2012, 05:09 PM   #6
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Quote:
Originally Posted by Precision1 View Post
Rubber puts more "give" into the system and servos last longer as they have less tendency to get strained by chassis flex, hard braking, EPA not set correctly, etc.
Every servo I've ever bought came with the rubber shims/spacers/grommets or whatever.
Hmm, maybe there is a reason the manufacturers put them on there. Uhh that's sarcasm.
Anyway, I always use them. Those harmonic type vibrations can destroy small electrical components.

Is be willing to bet the hobby shop guy didn't use them because he didn't know where to put them.
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Old 02-21-2012, 07:49 PM   #7
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i never do, i use the Dace clamps...no problems

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Old 02-21-2012, 11:17 PM   #8
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Quote:
Originally Posted by Franchise View Post
Every servo I've ever bought came with the rubber shims/spacers/grommets or whatever.
Hmm, maybe there is a reason the manufacturers put them on there. Uhh that's sarcasm.
Anyway, I always use them. Those harmonic type vibrations can destroy small electrical components.

Is be willing to bet the hobby shop guy didn't use them because he didn't know where to put them. :rolleyes:
This "hobby shop" guy has 30 years of experience and knows more tricks and secrets than you or I will ever know. Not your run of the mill HS clerk. He wasn't being paid to do it, he's just cool like that.

He did it for a reason. Just trying to figure out why.
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Old 02-21-2012, 11:34 PM   #9
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Quote:
Originally Posted by NEMESIS44 View Post

He did it for a reason. Just trying to figure out why.
The I suggest you to take your phone and call him...
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Old 02-22-2012, 09:01 AM   #10
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Never use it, never have a problem and my servos get replaced after 2 years of racing and knock on wood never have a DNF because of a bad servo!!
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Old 02-22-2012, 09:05 AM   #11
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Where can u get the Dace?
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Old 02-22-2012, 06:06 PM   #12
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Quote:
Originally Posted by morgoth View Post
The I suggest you to take your phone and call him...
He is so generous with speed secrets that I hate to ask. I don't want to seem greedy because I'm very grateful for all the help.

Regardless, I went back and put them in again. Like someone said before, there's no way in hell I'd ever notice a change in CG that small or any other little gain it may be for that matter. I wish they made air bags to go around them at $150 a piece.
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Old 02-22-2012, 07:04 PM   #13
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Quote:
Originally Posted by adrictan View Post
Where can u get the Dace?
out of business, but Amain has some from another company
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Old 02-22-2012, 07:38 PM   #14
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full force rc servo clamps.....
http://www.fullforcerc.com/hardware.htm

http://www.beatyourtruck.com/prodrev...rvoclamps.html
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Old 02-23-2012, 06:46 AM   #15
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Koprpo has some alumium groumet that fits perfect and take the play out of the screw. Product #36852
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