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Old 10-30-2011, 10:51 PM   #1
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Default Potential for damage?

If I need to put an extension directly off of the servo horn, what kind of carnage will occur? Hitec 645MG(I think) servo w/aluminum horn.

It is on a FOFF rig. Just trying to get some more steering.

Last edited by Hounddad; 10-30-2011 at 10:56 PM.
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Old 10-30-2011, 10:54 PM   #2
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as long as you set your end points properly it shouldn't make much difference. i actually just did this to my servo horn on my XR10 today. if you're gonna have your rig setup to go fast, you might want to consider a servo saver though. especially with an extension on the servo horn.
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Old 10-31-2011, 08:59 AM   #3
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You will decrease the torque from the servo to the wheels and it will make that servo horn easier to strip....
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Old 10-31-2011, 11:40 AM   #4
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Quote:
Originally Posted by JeremyH View Post
You will decrease the torque from the servo to the wheels and it will make that servo horn easier to strip....
+1, additionally, it makes it easier to strip servo gears if you shock the front wheels.
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Old 10-31-2011, 11:52 AM   #5
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Quote:
Originally Posted by Charlie-III View Post
+1, additionally, it makes it easier to strip servo gears if you shock the front wheels.

X3.
I have added a longer arm on a 645 in the past. Output got a little weak.
But that extension acts like a big lever (moment arm), so a shock to the front wheels will be a lot rougher on the servo drivetrane.
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Old 11-05-2011, 02:57 PM   #6
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Im not sure how your rig is setup but you can get the same effect by making your tie rod closer to your c-hub pivot point. That would also have the same levering effect over the servo as a longer arm.
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