Go Back  RCU Forums > RC Airplanes > Beginners
Reload this Page >

Elevator Radio Set Up

Community
Search
Notices
Beginners Beginners in RC start here for help.

Elevator Radio Set Up

Thread Tools
 
Search this Thread
 
Old 05-25-2013, 06:26 AM
  #1  
kswanson
Thread Starter
My Feedback: (25)
 
Join Date: Sep 2003
Location: Luverne, MN
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Default Elevator Radio Set Up

I need advice on how to do an elevator set up on a Revolver 70.

I bought the plane used and trying to get my radio set up. The elevator has to individual servos for each side of the elevator.

I have a Spektrum DX6i DSMX 6 that I bought from hobby zone where you got the free RX.

I am not sure how I connect the two servos up to the RX and need advice.

I tried a Y splitter much like you use for Ailerons but that does not work as the servos face each other that one goes one direction and the other goes the opposite.

Thanks
Old 05-25-2013, 06:55 AM
  #2  
Mk23socom
My Feedback: (7)
 
Join Date: Apr 2010
Posts: 675
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up

http://www.horizonhobby.com/products...andard-EXRA320

A reversing Y is an option for you to consider.. works like a standard Y but has been modified to reverse one of the servos for an application such as yours..
Old 05-25-2013, 08:28 AM
  #3  
jester_s1
Moderator
 
Join Date: Dec 2006
Location: Fort Worth, TX
Posts: 7,266
Received 35 Likes on 30 Posts
Default RE: Elevator Radio Set Up

You can reverse a servo if you want. All you have to do is switch the two wires going to the motor. I don't have that radio, but if it allows you to set up a mix with either ch. 5 or 6 and one of them is available, you can do it that way also.
Old 05-26-2013, 03:49 AM
  #4  
ec121
My Feedback: (2)
 
Join Date: Jan 2003
Location: Billingsley, AL
Posts: 737
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up

Jester. You also have to reverse the + and - wires on the feedback pot or the motor will keep to trying to drive to position.
Old 05-26-2013, 04:22 AM
  #5  
Rodney
Senior Member
 
Join Date: Dec 2001
Location: FL
Posts: 7,769
Likes: 0
Received 5 Likes on 5 Posts
Default RE: Elevator Radio Set Up


ORIGINAL: jester_s1

You can reverse a servo if you want. All you have to do is switch the two wires going to the motor. I don't have that radio, but if it allows you to set up a mix with either ch. 5 or 6 and one of them is available, you can do it that way also.
Wrong, you have to reverse the motor wires as said but you must also exchange the two outer wires on the feedback pot.
Old 05-26-2013, 04:26 AM
  #6  
jester_s1
Moderator
 
Join Date: Dec 2006
Location: Fort Worth, TX
Posts: 7,266
Received 35 Likes on 30 Posts
Default RE: Elevator Radio Set Up

You guys are right. I did it myself a while back and forgot about the other wires on the pot.
Old 05-26-2013, 05:02 AM
  #7  
flyinwalenda
My Feedback: (5)
 
flyinwalenda's Avatar
 
Join Date: Oct 2009
Location: Northeast, PA
Posts: 3,975
Likes: 0
Received 1 Like on 1 Post
Default RE: Elevator Radio Set Up

Connect one elevator servo to the ELEVATOR port of the receiver. Connect the other elevator servo to the GEAR port of the receiver.
Program the following mixes. After programming the mix you may have to reverse either the Elev. or Gear servo and adjust the rates up or down to match.

Mix 1 – (This disables the Gear Switch on Transmitter, This also allows proper elevator to gear mixing… without this only the down side of servo works.)
Gear Mixed With Gear Activate
Rate Down -100% Up -100% (Important has to be negative values)
Switch On Trim Active

Mix 2 – (Mixing Gear Channel with Elevator for Dual Servo Elevator – Using less than 100% to match the surfaces in the down and up positions.)
Elevator Mixed With Gear Activate
Rate Down +96% Up +96%
Switch On Trim Active


Old 05-26-2013, 06:57 AM
  #8  
Steve Steinbring
Senior Member
 
Join Date: Jul 2007
Location: Homestead, FL
Posts: 584
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up

Years ago before there was servo reversing!

With a Y chord we simply turned one servo around in its installation that way it would effectively operate in the same direction as its twin on the other side.
Old 05-26-2013, 07:35 AM
  #9  
kswanson
Thread Starter
My Feedback: (25)
 
Join Date: Sep 2003
Location: Luverne, MN
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up


ORIGINAL: flyinwalenda

Connect one elevator servo to the ELEVATOR port of the receiver. Connect the other elevator servo to the GEAR port of the receiver.
Program the following mixes. After programming the mix you may have to reverse either the Elev. or Gear servo and adjust the rates up or down to match.

Mix 1 – (This disables the Gear Switch on Transmitter, This also allows proper elevator to gear mixing… without this only the down side of servo works.)
Gear Mixed With Gear Activate
Rate Down -100% Up -100% (Important has to be negative values)
Switch On Trim Active

Mix 2 – (Mixing Gear Channel with Elevator for Dual Servo Elevator – Using less than 100% to match the surfaces in the down and up positions.)
Elevator Mixed With Gear Activate
Rate Down +96% Up +96%
Switch On Trim Active


Brian - Thanks for the help see my settings below but I still have a problem (see below the pics) .





Using these settings both elevator halves are working but the one connected to gear is still not aligned and if I hit the gear switch 0 to 1 or 1 to 0 that elevator half still moves as if it was the Gear switch is still active.

I don't think that is correct and wondering how I resolve it?
Old 05-26-2013, 12:19 PM
  #10  
flyinwalenda
My Feedback: (5)
 
flyinwalenda's Avatar
 
Join Date: Oct 2009
Location: Northeast, PA
Posts: 3,975
Likes: 0
Received 1 Like on 1 Post
Default RE: Elevator Radio Set Up

Mix #1 .....both values need to be negative 100 ( D -100%) (U -100%)
You still have D at plus 100 (+100).

Old 05-26-2013, 02:32 PM
  #11  
kswanson
Thread Starter
My Feedback: (25)
 
Join Date: Sep 2003
Location: Luverne, MN
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up


ORIGINAL: flyinwalenda

Mix #1 .....both values need to be negative 100 ( D -100%) (U -100%)
You still have D at plus 100 (+100).


That did the job... Thank you Brian!
Old 05-26-2013, 06:01 PM
  #12  
Charlie P.
 
Charlie P.'s Avatar
 
Join Date: Feb 2003
Location: Port Crane, NY
Posts: 5,117
Received 8 Likes on 8 Posts
Default RE: Elevator Radio Set Up



Isolve this issue with an Equalizer II from Smart-Fly. It is much more sensitive to fine adjustments than my 9C was able to achieve.

https://www.smart-fly.com/Products/E.../equalizer.htm

Old 05-26-2013, 06:58 PM
  #13  
Bozarth
My Feedback: (15)
 
Join Date: Apr 2004
Location: Aurora, CO
Posts: 1,297
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Elevator Radio Set Up


ORIGINAL: Steve Steinbring

Years ago before there was servo reversing!

With a Y chord we simply turned one servo around in its installation that way it would effectively operate in the same direction as its twin on the other side.

That won't do it, even back then! Rotation direction wouldn't change in your scenario.

Kurt
Old 05-26-2013, 07:52 PM
  #14  
Charlie P.
 
Charlie P.'s Avatar
 
Join Date: Feb 2003
Location: Port Crane, NY
Posts: 5,117
Received 8 Likes on 8 Posts
Default RE: Elevator Radio Set Up

I have two models that stagger them.  One servo mounted higher on one side of the fuselage than on the other; so that the axis of control rods is the same for either side.  
Old 05-27-2013, 03:03 AM
  #15  
lopflyers
Senior Member
My Feedback: (12)
 
lopflyers's Avatar
 
Join Date: Jun 2010
Location: Orlando, FL
Posts: 1,520
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up

A matchbox will also solve that problem.
nThat is a sweet plane, there is a looooong thread here titled Large Revolver of all of us that have the plane.
You might want to read and join us.
Old 05-27-2013, 06:15 AM
  #16  
kswanson
Thread Starter
My Feedback: (25)
 
Join Date: Sep 2003
Location: Luverne, MN
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Elevator Radio Set Up


ORIGINAL: lopflyers

A matchbox will also solve that problem.
nThat is a sweet plane, there is a looooong thread here titled Large Revolver of all of us that have the plane.
You might want to read and join us.

Good information but please share links to the "matchbox" and the thread for the larger revolver. I will search in the meantime.
Old 05-27-2013, 06:21 AM
  #17  
flyinwalenda
My Feedback: (5)
 
flyinwalenda's Avatar
 
Join Date: Oct 2009
Location: Northeast, PA
Posts: 3,975
Likes: 0
Received 1 Like on 1 Post
Default RE: Elevator Radio Set Up


ORIGINAL: kswanson


ORIGINAL: flyinwalenda

Mix #1 .....both values need to be negative 100 ( D -100%) (U -100%)
You still have D at plus 100 (+100).


That did the job... Thank you Brian!
Happy to help !
Here's a link to the matchbox
I use them when there are 2 servos on one control surface like in larger planes with 2 servos on each aileron. You can also use them when you run out of available ports on your receiver or mixes on your radio.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.