Elevator Problem

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azza690 · 06-29-2009, 01:05 AM

Hi
I'm after a little help with my elevator set-up. This will be the first build i have done with dual servos
for the elevators, what i need to know is do i just join the two servos with a "y" harness and run
it in one channel to the receiver or do you do it another way with mixing on the radio?
I'm using a JRX3810 radio. Any help will be greatly appreciated!!!!

sweetpea · 06-29-2009, 02:14 AM

Since the 3810 is basically the 8103 from the info I could find here is what I found for you.

It doesn't appear that it has a dual elevator setup. You would have to use one of your mixes to Aux 3 and mix elevator to that channel (for example).

Or use a matchbox or SF equalizer.

Or, You would have to use a reversing Y as the servos are placed opposite of one another. If you did get one, I suggest one with an adjustable POT so you can fine tune center better. I've never liked using a reversing Y for something as important as a second elevator and have found that Y's tend to not be exact in speed or throw, so it can offset your elevators making your plane not as precise in up/down manuevers.

Richo · 06-30-2009, 01:43 AM

You will need to use mix 5 or 6 with the 3810, these mixes take care of the trimming on both servo's.
It's been a whlie since I used a 3810, but if you mix with either aux 2 or 3 you will have one of the rotary dials working the sub trim. I cant remember if or how you disable the switch.

azza690 · 06-30-2009, 07:14 PM

Hey guys thanks for the replys i have sorted it out from your answers. Will post a couple of pics of the ultimate biplane i'm building....

3ddd · 06-30-2009, 07:18 PM

be careful with the reversing y's,they will change with heat,i would call smart-fly and use his eq

appydriver · 06-30-2009, 07:59 PM

You could reverse one of the servos by swapping the positive and negative wires on the servo motor its self. Then you could use a standard y and not have to use the programming in the transmitter. I've done this several times with no issues. I really don't trust the reversing y's to far.

Mithrandir · 06-30-2009, 08:14 PM

if the servos are mounted on their side.... you can use a normal Y harness and lay both servos down with both shafts pointing the same direction rather then having the shafts facing each other like a mirror image installation....

ferocious frankie · 06-30-2009, 08:19 PM

If you're using Hitec digitals...

Borrow a programmer, reverse one of the servos, and plug both into a y-harness. Voila!

rede2fly · 06-30-2009, 10:36 PM

as richo stated on that radio it is the very same as the 8103 mix 5 or 6 and use channels 3 and 8 to do this. 3 is the master and 8 is the slave. when you hit this it will let both use the elevator as the trim but the sub trim will be channel 8 as 3 will be for for other side also channel 3 will be the right side and 8 will be the left.

06-29-2009, 01:05 AM	#1
azza690 Doo It! Doo It! Join Date: Jun 2009 Location: aus Posts: 95	Elevator Problem Hi I'm after a little help with my elevator set-up. This will be the first build i have done with dual servos for the elevators, what i need to know is do i just join the two servos with a "y" harness and run it in one channel to the receiver or do you do it another way with mixing on the radio? I'm using a JRX3810 radio. Any help will be greatly appreciated!!!!

06-29-2009, 02:14 AM	#2
sweetpea If you can't HUCK it BLING IT! Join Date: Jan 2006 Location: Just Moved.......Hampton VA Age: 37 Posts: 9,269 Awards Showcase Total Awards: 2	Re: Elevator Problem Since the 3810 is basically the 8103 from the info I could find here is what I found for you. It doesn't appear that it has a dual elevator setup. You would have to use one of your mixes to Aux 3 and mix elevator to that channel (for example). Or use a matchbox or SF equalizer. Or, You would have to use a reversing Y as the servos are placed opposite of one another. If you did get one, I suggest one with an adjustable POT so you can fine tune center better. I've never liked using a reversing Y for something as important as a second elevator and have found that Y's tend to not be exact in speed or throw, so it can offset your elevators making your plane not as precise in up/down manuevers. __________________ Offical Member of Team Caribou Lou "Some people spend an entire lifetime wondering if they made a difference in the world. But the U.S. ARMED FORCES don't have that problem." ...Ronald Reagan Last edited by sweetpea; 06-29-2009 at 02:23 AM.

06-30-2009, 01:43 AM	#3
Richo "Still living this dream...." Join Date: Jan 2006 Location: Brisbane, Australia Age: 53 Posts: 2,509	Re: Elevator Problem You will need to use mix 5 or 6 with the 3810, these mixes take care of the trimming on both servo's. It's been a whlie since I used a 3810, but if you mix with either aux 2 or 3 you will have one of the rotary dials working the sub trim. I cant remember if or how you disable the switch. __________________ *Cheers,* *Richo*

06-30-2009, 07:14 PM	#4
azza690 Doo It! Doo It! Join Date: Jun 2009 Location: aus Posts: 95	Re: Elevator Problem Hey guys thanks for the replys i have sorted it out from your answers. Will post a couple of pics of the ultimate biplane i'm building....

06-30-2009, 07:18 PM	#5
3ddd tissue ? cry baby jack wagon! Join Date: Jan 2006 Location: pyote,texas Age: 58 Posts: 2,651	Re: Elevator Problem be careful with the reversing y's,they will change with heat,i would call smart-fly and use his eq __________________ Life's journey is not to arrive at the grave >safely and in a well preserved body,but rather to skid in > sideways,totally screwed up,worn out,shouting,"oh damn what a fine ride! AMA 98634 > HEY I GOT A DIVORCE----HELL YEA > Futaba, FROMECO:a good way to get a charge out of life,,3w all the way for a good day

06-30-2009, 07:59 PM	#6
appydriver Hey' What just fell off ! Join Date: Jul 2007 Location: Miami Mo. USA. Age: 45 Posts: 240	Re: Elevator Problem You could reverse one of the servos by swapping the positive and negative wires on the servo motor its self. Then you could use a standard y and not have to use the programming in the transmitter. I've done this several times with no issues. I really don't trust the reversing y's to far. __________________ Ride an Appaloosa,Put some color in your life! If you've eaten today, Thank a Farmer or Rancher.

06-30-2009, 08:14 PM	#7
Mithrandir Bad-ass Super Contributer! Join Date: Jan 2006 Location: High Desert California, USA Age: 50 Posts: 5,690	Re: Elevator Problem if the servos are mounted on their side.... you can use a normal Y harness and lay both servos down with both shafts pointing the same direction rather then having the shafts facing each other like a mirror image installation....

06-30-2009, 08:19 PM	#8
ferocious frankie Huck Yeah!!! Join Date: Mar 2006 Location: California Posts: 1,624	Re: Elevator Problem If you're using Hitec digitals... Borrow a programmer, reverse one of the servos, and plug both into a y-harness. Voila! __________________ Plane: AW 50cc Extra 300 Radio: Futaba 12FG 2.4 GHz

06-30-2009, 10:36 PM	#9
rede2fly GRAVITY SUCKS Join Date: Jan 2006 Location: florida Posts: 4,281	Re: Elevator Problem as richo stated on that radio it is the very same as the 8103 mix 5 or 6 and use channels 3 and 8 to do this. 3 is the master and 8 is the slave. when you hit this it will let both use the elevator as the trim but the sub trim will be channel 8 as 3 will be for for other side also channel 3 will be the right side and 8 will be the left.

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