Fun, Learning, Friendship and Mutual Respect
START  HERE

DJI Gaui Hyperion Batteries Empire Hobby

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


BeastX FBL System BeastX FBL Flybarless System Software and Hardware Support


Reply
 
Thread Tools Display Modes
Old 07-28-2012, 10:47 PM   #1
czynot
Registered Users
 
Posts: 925
 

Join Date: Aug 2011
Location: nyc
Default Bad 7200BX cause Tail servo move / tail shake

450pro with AR7200BX. 2 layer of 411 tape, DS95i tail, tail gain at 50% (even down to 0% still shake). Tail servo no movement after power up. When full spooled up. I can see the tail servo move back and forward slightly. I think this is where my tail shake is coming from. Virbration is not that bad. I can hardly feel the vib in my hand when spooled up without the main blade. Main blade is tracked and balanced. Even with no blades on the heli. Servo moves after spooling up.

I had no problem before the minor tip over. I pretty much replaced everything on this heli except for the frame just to find out where / or what is causing the tail shake.

Parts replaced are not damaged but i replace it anyway to track down the tail shake.
main blade
main bearing
main shaft,
complete head assembly
tail grip assembly
torque tube and shaft
tail blade (kbdd)

Could it be the AR7200 giving servo movement with slightest vib? Same result with different tail servo.
czynot is online now        Reply With Quote
Old 07-29-2012, 08:28 AM   #2
anmatheextreme
Registered Users
 
Posts: 1,724
 
My HF Map location
Join Date: Mar 2011
Location: Athens, Greece
Default

Quote:
Originally Posted by czynot View Post
450pro with AR7200BX. 2 layer of 411 tape, DS95i tail, tail gain at 50% (even down to 0% still shake). Tail servo no movement after power up. When full spooled up. I can see the tail servo move back and forward slightly. I think this is where my tail shake is coming from. Virbration is not that bad. I can hardly feel the vib in my hand when spooled up without the main blade. Main blade is tracked and balanced. Even with no blades on the heli. Servo moves after spooling up.

I had no problem before the minor tip over. I pretty much replaced everything on this heli except for the frame just to find out where / or what is causing the tail shake.

Parts replaced are not damaged but i replace it anyway to track down the tail shake.
main blade
main bearing
main shaft,
complete head assembly
tail grip assembly
torque tube and shaft
tail blade (kbdd)

Could it be the AR7200 giving servo movement with slightest vib? Same result with different tail servo.
After all that, you may just have a bad on the beastx. Sometimes that happens and will cause strange results. Is there any space on the 450 to move the beastx to? If it gets better on the new location, its defenately vibration. Check all the bearings.
Can you explain what you mean about no movement on power up? Like the servo is dead or what?
__________________
-Andrew
Align Trex 600EFL Pro - BeastX
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Blade 450X - Scorpion 2221-6 motor
Blade 130x / mCPx HP05s
anmatheextreme is online now        Reply With Quote
Old 07-29-2012, 09:04 AM   #3
czynot
Registered Users
 
Posts: 925
Thread Starter Thread Starter
 

Join Date: Aug 2011
Location: nyc
Default

Quote:
Originally Posted by anmatheextreme View Post
After all that, you may just have a bad on the beastx. Sometimes that happens and will cause strange results. Is there any space on the 450 to move the beastx to? If it gets better on the new location, its defenately vibration. Check all the bearings.
Can you explain what you mean about no movement on power up? Like the servo is dead or what?
No movement i mean All servo rest at the center position after initializing. No tail servo wag.
Tail servo wag only after spoolong up. so it is most likely vib related. But why this happen after a minor tip over.
czynot is online now        Reply With Quote
Old 07-29-2012, 10:41 AM   #4
9sec240
Registered Users
 
Posts: 2,378
 

Join Date: Feb 2009
Location: Chicagoland
Default

The motor on my Gaui 200 vibrated enough to effect the FBL unit. The motor on my 300 X vibrated enough to cause tail kicks. Is it possible your motor might be causing the issue?




On the 300 X, I switched out the stock motor for a Scorpion and the tail issues are gone.
__________________
Ivan

There is a very fine line between "hobby" and "mental illness."
9sec240 is offline        Reply With Quote
Reply




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


BeastX FBL System BeastX FBL Flybarless System Software and Hardware Support

Thread Tools
Display Modes

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

Forum Jump


Copyright © 2004-2011 - William James - Helifreak.com