Go Back  RCU Forums > RC Helicopters > Electric RC Helis > T-Rex heli
Reload this Page >

Trex 600 cyclic fine tuning problem? Or not advice

Notices
T-Rex heli For all you T-Rex lovers out there, this where you can post!

Trex 600 cyclic fine tuning problem? Or not advice

Old 04-21-2011, 09:54 AM
  #1  
noginblue
Thread Starter
 
Join Date: Jan 2007
Location: warminsterwiltshire, UNITED KINGDOM
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default Trex 600 cyclic fine tuning problem? Or not advice

Have set up the 600 per manual, pitch is all good but on cyclics i have had to use servo travel to equal the cyclics out to 7deg, now my problem is as the swash moves up and down it does not stay perfectly level through its travel due to what i think is the alterations i have done to the cyclics! Any thoughts, if set up as per manual should i not need to use servo travel, or is there a mechanical way to sort this out?
Old 04-21-2011, 10:54 AM
  #2  
BarracudaHockey
My Feedback: (11)
 
BarracudaHockey's Avatar
 
Join Date: Jul 2003
Location: Jacksonville, FL
Posts: 26,917
Received 339 Likes on 271 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

Sorry, when you say servo travel you mean you messed with the end points (EPA, Travel Adjust)?

You don't adjust cyclic throw with the end points, you get the swash level at the top and bottom with the end points and leave them alone.

To increase cyclic throws at that point you use the SWASH mix.
Old 04-21-2011, 11:29 AM
  #3  
gi1mo2
Senior Member
 
Join Date: Feb 2009
Location: Gatineau, QC, CANADA
Posts: 608
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

Very interesting. I've always set level at mid-point, and the compensate for bottom / top end points. You say you level at the end points and middle should also be level. I'll definitely try that on my next setup.
Old 04-21-2011, 12:03 PM
  #4  
BarracudaHockey
My Feedback: (11)
 
BarracudaHockey's Avatar
 
Join Date: Jul 2003
Location: Jacksonville, FL
Posts: 26,917
Received 339 Likes on 271 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

Center the servos, find the arm closest to 90 and get everything level at mid stick (i actually set 50-50-50 in my pitch curve to make sure no matter where the stick is near center the servos are getting 50). Tweak it in with sub trim till everything is level.

Then go to low stick and tweak the end points till everything is level. Then top stick.

Then set the throws with the swash value for pit, ail, and ele
Old 04-21-2011, 02:02 PM
  #5  
noginblue
Thread Starter
 
Join Date: Jan 2007
Location: warminsterwiltshire, UNITED KINGDOM
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

Right have every thing set other then my right aileron has too much, i have a dx8 if that helps, can anyone explain in stupid terms how to sort this, cheers for help so far been invaluble
Old 04-25-2011, 09:35 PM
  #6  
Ybenjulkay2x
Senior Member
 
Join Date: Aug 2004
Location: richmond, CA
Posts: 629
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

I have a question, does direct drive (linkage) from servo arm to swash plate will work? I'm doing experiment on my 600 GT as i notice it reduce speed on my cyclic when I have the other part linkage on, after removing the linkage and do it direct from servo to swash, it add more speed on my cyclic ( it's very slooow on cyclic before so I decide to do like the 500 GT setting).
Old 04-26-2011, 06:55 AM
  #7  
Cleared2Engage
Senior Member
 
Cleared2Engage's Avatar
 
Join Date: Mar 2007
Location: Oxnard, CA
Posts: 602
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Trex 600 cyclic fine tuning problem? Or not advice

Those arms are there for mechanical advantage, to put less strain on the servo. What's the torque rating for the servo you're going to try this on?

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


Thread Tools
Search this Thread

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.