Go Back  RCU Forums > RC Airplanes > RC Jets
 JR12x elevon problem-need help >

JR12x elevon problem-need help

Community
Search
Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

JR12x elevon problem-need help

Thread Tools
 
Search this Thread
 
Old 04-07-2012 | 05:18 AM
  #1  
Thread Starter
Senior Member
 
Joined: Sep 2007
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
From: N/A, AE, US MINOR OUTLYING ISLANDS
Default JR12x elevon problem-need help

My problem is- I set the wing type to delta, adjust the travel of each servo for max recommended up & down pitch while moving the stick straight up & down, then adjust the travel for max recommended left & right roll moving the stick straight left & right, but when I give it full right & down or up, or left & down or up, the servos go way further than where I had them adjusted to. If I adjust them to where max recommended is not exceeded during full right or left & up or down then I don't have enough throw when I just give it just up and down, or when I give it just left and right. I have had this problem before with another radio and jet but I can't remember how I fixed it. I got a new jr12x and can't figure out how to solve this problem. Any tips will be appreciated.
Old 04-07-2012 | 05:29 AM
  #2  
grbaker's Avatar
My Feedback: (29)
 
Joined: Dec 2001
Posts: 3,577
Received 33 Likes on 24 Posts
From: La Porte TX
Default RE: JR12x elevon problem-need help

Removed
Old 04-07-2012 | 05:45 AM
  #3  
Thread Starter
Senior Member
 
Joined: Sep 2007
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
From: N/A, AE, US MINOR OUTLYING ISLANDS
Default RE: JR12x elevon problem-need help

The recommended max throw for the surfaces is 30mm in any possible stick position. When I adjust them to that with the stick in the corners then there is not near enough throw for just straight up and down, or just straight left & right. When I adjust them to max with straight up & down stick movement, or straight left & right then they go way to far in the corners, to the point of damaging the surface hinges, not safe for flt either way.
Old 04-07-2012 | 07:40 AM
  #4  
Countryboy's Avatar
My Feedback: (25)
 
Joined: Dec 2001
Posts: 2,657
Likes: 0
Received 2 Likes on 2 Posts
From: Lawrenceburg, KY
Default RE: JR12x elevon problem-need help


ORIGINAL: carbunkle

My problem is- I set the wing type to delta, adjust the travel of each servo for max recommended up & down pitch moving the stick straight up & down, then adjust the travel for max recommended left & right roll moving the stick straight left & right, but when I give it full right & down or up, or left & down or up the servos go way further than where I had them adjusted to. If I adjust them to where max recommended is not exceeded during full right or left & up or down then I don't have enough throw when I just give it just up and down, or when I give it just left and right. I have had this problem before with another radio and jet but I can't remember how I fixed it. I got a new jr12x and can't figure out how to solve this problem. Any tips will be appreciated.
I am currently trying to fight through this same issue while setting up my Eurosport using the 10x. Don't know how the 12x differs as I don't own one, but I would'nt think there would be that much difference. Here is what I have done so far...

Wing type set to elevon.
ATV set at 100% for elevator & 80% for ailerons.
D/R for aileron set at 40,50 & 55% respectively.
D/R for elevator set at 70,80 & 100% respectively

This has put me pretty close without over travel with the sticks in the corners, but still need to fine tune the setup. Be curious to know what you come up with.
Old 04-07-2012 | 12:45 PM
  #5  
BarracudaHockey's Avatar
My Feedback: (11)
 
Joined: Jul 2003
Posts: 28,282
Received 444 Likes on 363 Posts
From: Jacksonville, FL
Default RE: JR12x elevon problem-need help

The 11x has Travel Adjust and Limit Adjust.

Travel adjust can be over ridden with a mix. Limit adjust is a hard stop regardless of mixing.
Old 04-08-2012 | 03:05 PM
  #6  
Thread Starter
Senior Member
 
Joined: Sep 2007
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
From: N/A, AE, US MINOR OUTLYING ISLANDS
Default RE: JR12x elevon problem-need help

I've tried everything suggested here and more, nothing works. I appreciate the help from those that posted but I know there is someone out there with a 12x on a delta set-up that has had this same problem, and hopefully found the cure. I tried to search for some other threads about this but no luck. BUMP
Old 04-08-2012 | 03:21 PM
  #7  
 
Joined: Dec 2003
Posts: 3,743
Likes: 0
Received 1 Like on 1 Post
From: York, UNITED KINGDOM
Default RE: JR12x elevon problem-need help

What are you trying to achieve?

If I understand your question, this is a standard issue with delta elevon mixing and isn't really radio related. If you want 30 degrees throw on elevator and 30 degrees on aileron then with both at full throw you will have 60 degrees. There isn't any way it could be otherwise.

If you want total throw to be limited to 30 degrees and still be able to simultaneously get full elevator and full aileron then, be default, you will have to reduce your elevator and/or aileron throw to stay within the 30 degree total limit.

If you have 30 degrees of elevator throw and 30 degrees of aileron, but you don't want more than 30 degrees total throw then this can be done by limiting total servo throw but when you apply, for example, full up then moving the ailerons will result in only one aileron moving (as the other is already at its 30 degree limit).



Old 04-08-2012 | 05:55 PM
  #8  
Thread Starter
Senior Member
 
Joined: Sep 2007
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
From: N/A, AE, US MINOR OUTLYING ISLANDS
Default RE: JR12x elevon problem-need help

Tried that, apparently that will not work with this JR12x. What I am trying to achieve is a safe flyable set-up. I've tried everything I can think of. When I adjust the max I can to keep from ripping the hinges off during corner stick position I don't have near enough throw with straight stick moves.

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
Trackbacks are Off
Pingbacks are Off
Refbacks are On



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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.