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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsOther › Tail is 'notchy' on movement
03-08-2012 05:22 AM  6 years agoPost 1
JETMAN

rrApprentice

WA

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setting up my 3x1000, Im new to the FBL game, its on my 450 with a 5 blade head. tail servo is an HK DS480, I set the servo type to 1520 digital, when in a hover, you push the rudder stick to move the tail and instead of moving a little with the stick movement, it all of a sudden jumps the direction you want.

Never had this before on any other heli so Im not sure what to do, anyone else had this issue?

www.3dfoamy.com

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03-08-2012 10:58 AM  6 years agoPost 2
Ben-T-Spindle

rrProfessor

Central Illinois

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That usually indicates binding tail linkage or a problem with tail blade grip bearings. Are the bearings installed correctly and smooth when you pull on the grips. I could be that the servo arm is too long or a bad tail servo.

.

... BTS

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03-08-2012 02:28 PM  6 years agoPost 3
JETMAN

rrApprentice

WA

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I've been flying the Heli for two years with a two blade head with no problems, I checked the setup and it's smooth. That's why I'm stumped. Only change is the fbl unit.

www.3dfoamy.com

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03-08-2012 04:00 PM  6 years agoPost 4
Ben-T-Spindle

rrProfessor

Central Illinois

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It never hurts to clean and lube the tail grip bearings. That’s something that I do at least once a year.

Maybe the tail servo has worn out.

.

... BTS

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03-08-2012 04:23 PM  6 years agoPost 5
JETMAN

rrApprentice

WA

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But I flew it last week just fine with a normal head and normal gyro, put the FBL setup on, now it doesnt control right. Im pretty sure the servo and linkages are alright. Nobody else has had this problem when converting to FBL? Im sure its a setting or something in the 3x1000, but need help figuring it out.

www.3dfoamy.com

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03-08-2012 07:03 PM  6 years agoPost 6
design engnr

rrApprentice

Smyrna, TN

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Do you have the programming box for this unit? There is a chance it could be the RC Deadband for the tail. I believe the default is set to 40. You could try lowering the value to 10. This effectively decreases the deadband in the tail servo and should give you more of a linear feel to the tail.

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03-08-2012 07:05 PM  6 years agoPost 7
JETMAN

rrApprentice

WA

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I do have the usb thing, I have not used it yet, but Ill have to give that a try tonight, I see no deadband listed in the manual, but maybe it comes up on the computer?

Thanks

www.3dfoamy.com

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03-08-2012 07:10 PM  6 years agoPost 8
design engnr

rrApprentice

Smyrna, TN

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It is in the tail tuning menu. It is separate from the basic and advanced menus. You should be able to access it with the USB dongle though. Good luck and please report how it works for you.

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03-08-2012 09:20 PM  6 years agoPost 9
JETMAN

rrApprentice

WA

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Ok Ill check it out. Thanks

www.3dfoamy.com

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03-09-2012 02:38 AM  6 years agoPost 10
JETMAN

rrApprentice

WA

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Ok, downloaded the software, but cant get it to connect to the 3x1000, is there a trick to it? tried two different computers and it wont find the unit....

I seen a bunch of cool settings in there that I could use, but cant get it to find the thing

Help?

www.3dfoamy.com

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03-09-2012 03:18 AM  6 years agoPost 11
JETMAN

rrApprentice

WA

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ok, figured it out, must download the driver out of the driver file, and find the correct COM and connect it. Deadband adjusted to 20 from 80.

Its supposed to rain here through the weekend, so who knows when I will get it into the air again, but Im confident itll be awesome!

www.3dfoamy.com

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03-11-2012 06:49 PM  6 years agoPost 12
JETMAN

rrApprentice

WA

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hovered a battery though it setting pitch and throttle curves, works perfectly now! Holds great, and Its not notchy/jumpy anymore.

The USB thing is the best way to setup the 3x1000 in my opinion.

Thanks all!

www.3dfoamy.com

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