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06-30-2016, 07:38 PM | #1 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| My servo keeps shifting position
The steering servo on my Wraith keeps shifting position. Presumably it's getting jarred by the titanium steering linkage, and slides one way or the other, throwing off the steering trim. I've ignored it for a long time, but everything else on my Wraith works so well at this point, it's starting to bug me that I haven't fixed this problem yet. I could probably hack something together that would do the job, but I'm curious to know if there are any ready-made solutions, or at least well-proven homebrew solutions, for this problem. Ideas? |
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06-30-2016, 09:47 PM | #2 |
RCC Addict Join Date: Jan 2011 Location: Bozangeles
Posts: 1,484
| Re: My servo keeps shifting position
So your whole servo is shifting position? Or your servo horn?
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06-30-2016, 09:54 PM | #3 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position
The whole servo is shifting in the mounts. I have a clamping aluminum servo horn, and there's no evidence that the servo gears are skipping teeth. It's a Hitec HS-7955TG servo, it's pretty much bulletproof.
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06-30-2016, 09:58 PM | #4 |
RCC Addict Join Date: Jan 2011 Location: Bozangeles
Posts: 1,484
| Re: My servo keeps shifting position
Are you still running it on the stock plate with the stock plastic mounts?
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06-30-2016, 10:07 PM | #5 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: My servo keeps shifting position VP servo clamps and if that's not enough add a VP servo mount |
06-30-2016, 10:12 PM | #6 | |
RCC Addict Join Date: Jan 2011 Location: Bozangeles
Posts: 1,484
| Re: My servo keeps shifting position Quote:
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06-30-2016, 10:16 PM | #7 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position
Ah, very good. That should do nicely.
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06-30-2016, 10:24 PM | #8 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: My servo keeps shifting position
Full disclosure - I don't actually have the VP servo mount. I'm using a DCW DeWanger with aluminum posts but that one-piece VP design looks even awesomer!
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07-01-2016, 03:26 AM | #9 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position
Yeah, I jumped on it. It's listed under SCX10 parts, but it says it fits AR60 axles, so it should work fine. I got the servo-ear clamps too. I don't need the DeWanger because I partially unscrewed the ball-ends on the titanium lower suspension links until they were long enough that the diff pinions were level when the truck was sitting on the ground. That had the side-bonus of tilting the servo backwards just far enough that it doesn't "whang" the servo horn on the frame of the truck. I've had it that way for about two years and I've had no problems with the ball-ends slipping on the threads as a result of being partially-unscrewed -- even after many, many flying nosedives off rocks that had no good descent options. (which brings us back to why I need to secure the servo better.) Last edited by fyrstormer; 07-01-2016 at 03:31 AM. |
07-01-2016, 12:36 PM | #10 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: My servo keeps shifting position In case you don't already - use the longer Jato rod ends to gain more length in your links without having to partially unscrew them, if you do happen to bust one.
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07-02-2016, 03:03 AM | #11 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position
I'll have to double-check, but I think the Jato rod ends are actually too long. I had them on my Yeti though, they worked well on that truck.
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07-02-2016, 08:42 AM | #12 |
Rock Crawler Join Date: Aug 2015 Location: Big Island
Posts: 863
| Re: My servo keeps shifting position
You can always trim them down. I just know that one of my recurring problems was pulling off rod ends so I make sure all threads are engaged, no more and no less.
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07-05-2016, 01:16 AM | #13 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position |
07-05-2016, 08:35 PM | #14 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: My servo keeps shifting position
That'll do. Thanks for the suggestion. Last edited by fyrstormer; 03-29-2018 at 11:14 PM. |
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