cyclic servo endpoints affect subtrim - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Electronics Support > 3Digi FBL System


3Digi FBL System 3Digi Supoort


Reply
 
LinkBack Thread Tools Display Modes
Old 07-21-2017, 11:38 PM   #1 (permalink)
Registered Users
 
Posts: 10,031
 

Join Date: Dec 2011
Location: Sacramento CA
Default cyclic servo endpoints affect subtrim

I noticed something odd, if you increase or decrease the endpoint of the cyclic servos it will cause the center point to move if there is any subtrim (changing the endpoint scales the subtrim). If the servo has no subtrim this doesn't happen. On every other FBL unit I have set up the subtrim is considered the center, the endpoints are referenced from that and changing the endpoints doesn't affect the subtrim.

This makes it inconvenient to level the swashplate at the center and the ends of the collective range because any change to the endpoints to level the swash at the top and bottom of the collective will change how much the subtrim affects the center point, and then re-leveling the swash at center throws off the swash at the top/bottom of the collective range again.

Also I don't recall this happening with the previous firmware but I might be remembering it wrong.
Atomic Skull is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 07-24-2017, 06:59 PM   #2 (permalink)
Registered Users
 
Posts: 756
 

Join Date: Jun 2008
Default

Hmm that is rather odd, is there an advanced menu that allows you to just manually enter in center, high, and low values? I know brain has this capability and the subtrim just adjusts the center value as you stated most fbl units do. Alternatively, if you have a radio capable of this, you can avoid subtrim altogether and just adjust the center pulse for each channel you want. I use taranis and this is what I usually do. Think Jeti can do this too.
__________________
XLPower Specter 700, Minicopter Diabolo 550, Trex 470LP
cbrian4 is online now        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1