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09-16-2013 08:39 PM  5 years agoPost 1


Sand Fork, WV USA

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Ok guys, I'm running a set of King Max servos on my Trex 550 and they are running super slow compared to what they should be running.

These are the cyclics:

They are rated for .11 @ 6v and .09 @ 7.4v inputs. I'm running them at 6v. I have the heli setup like a typical 12S setup, with a 7.4v flight pack with the Align 6v regulator running just the electronics. and a 6S running the motor/ESC. I have the Hobby Mate HB-800 gyro, Orange AR620 RX, CC Talon 90 ESC, Align 600MX motor.

It is taking the cyclics about 2-3 seconds to go from full back elevator to reach full forward elevator. I have no idea why the servos are running this slow. When I had them connected on the Ikon gyro, they did not run this slow. I don't remember right off the top of my head what the HZ rating is set too in the gyro, but I know it's no where near what they are rated for. I don't know if this really makes a difference. They are rated to run at 330hz but I think they are somewhere around the 200 or 220hz which is the highest the gyro is rated to run cyclic servos. Will this cause them to run this slow or should they be running at the speeds they are rated for?

Loving learning these 3D Maneuvers!

09-17-2013 04:41 AM  5 years agoPost 2


Cookeville, TN

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The update rate shouldn't have a huge effect on servo speed. I would look at something else in the setup. Try connecting one of the servos directly to a Receiver and seeing if the speed returns to normal.

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09-17-2013 12:16 PM  5 years agoPost 3


Sand Fork, WV USA

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That's what's explained in the BeastX manual for servo speed. That if the servos are running too slow, to increase the Travel Adj menu in the radio. So this is by the manual.

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