Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Thunder Tiger 30/50 > Titan X50


Titan X50 Thunder Tiger Titan X50 Helicopters


Reply
 
LinkBack Thread Tools Display Modes
Old 07-04-2014, 08:37 PM   #21 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Default

thanks guys
I got high vibration when hoving. the fan help a lot I was able to move the sensor on the little shelf up front with sensor tape, metal plate, tape, tape,

if I can get it down to raised vibration only I would not have the heli make little servos twitches when doing rolls.

guys how else can I get my vibs down just a little more?
joecass2 is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 07-05-2014, 12:53 AM   #22 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

Joe - I've never heard someone claim their servos twitch in rolls before. How do you know it's doing this?

I know one thing about this heli, at least in my case, there was alot of slop in the spindle and dampers. The grips had a bunch of play as the grip bearing fit is on the loose side. So, I installed some 7mm id x 0.2mm shims. A pair (total 0.4mm for each end) was installed to tighten up the play a bit. Mine is dead steady flying. No the least bit twitchy. My concern was this would let the spindle float too much which would allow for some vibration since this could cause some unbalance to occur even with perfect blades.

I found the shims at Stormer Racing: LINK
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-05-2014, 01:54 PM   #23 (permalink)
Registered Users
 

Join Date: Dec 2006
Default

How quickly I forget things. I also had the play in the head and had to fit the extra shims like you Rob. Without those I can imagine there is going to be an unwanted vibration.

I don't think it is the fit of the bearings I believe it to be the feathering spindle is about 1mm too long.

I purchased some washers/shims made for a JR model. They cost stupid money for what they are but it did the trick to remove the end float.
Andy from Sandy is offline        Reply With Quote Quick reply to this message
Old 07-05-2014, 04:21 PM   #24 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

Indeed, I tried to get the JR spacers unsuccessfully. Then I found 7mm spacers by doing a Google search. I bought 0.1mm, 0.2mm, and 0.3mm so I could handle any combination needed.
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-05-2014, 10:20 PM   #25 (permalink)
Registered Users
 
Posts: 1,401
 

Join Date: Sep 2010
Default

I blame the dampers not being thick enough. Throw old Raptor dampers in there and there is no slop, because they stick out further.
__________________
Don S is offline        Reply With Quote Quick reply to this message
Old 07-05-2014, 11:55 PM   #26 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Default

thanks guys im going to have to try that. I leaned out my mid needle by one click because of the hot weather and my vib. level dropped some. I can now see some raised vib. level in the log at times. heli was flying really good. I think im going to go in one more click on the mid needle.

I tied leaning the mid needle with the old fan and it did not have much effect on vib. level.

I also am going to order shims the next time I needed something.
joecass2 is offline        Reply With Quote Quick reply to this message
Old 07-06-2014, 08:49 AM   #27 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

Quote:
Originally Posted by Don S View Post
I blame the dampers not being thick enough. Throw old Raptor dampers in there and there is no slop, because they stick out further.
That's good to know, Don. Are they also the progressive damping design, with a pair of dampers with different durometer? I really like how this flies.
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-06-2014, 09:00 AM   #28 (permalink)
Registered Users
 
Posts: 1,401
 

Join Date: Sep 2010
Default

The old style aren't progressive. I use the old dampers on my Jet Ranger (you also need old Raptor spindle and bearings). I just shim my X50 head as needed.
__________________
Don S is offline        Reply With Quote Quick reply to this message
Old 07-06-2014, 11:00 AM   #29 (permalink)
Registered Users
 

Join Date: Dec 2006
Default

Thunder Tiger realised their mistake with the original spindle for the X50 as I am pretty sure I saw an update one available.

The reason the original Raptor spindle works is probably because it is that 1mm shorter and the correct length.

joecass, If you have end float in the main blade grips then you need to fix it asap and not wait as it will cause a slight imbalance to the main blades that could be enough to cause your vibration issues.
Andy from Sandy is offline        Reply With Quote Quick reply to this message
Old 07-06-2014, 01:50 PM   #30 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

+1. Coming from only Compass for a while, I was astonished how sloppy the fit up was. The diametral fit isn't very tight either for that matter. But hey, it flies incredibly.
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-06-2014, 10:56 PM   #31 (permalink)
Registered Users
 
Posts: 1,401
 

Join Date: Sep 2010
Default

I didn't see any length difference old vs. new spindle (X50). The only reason for the change was because the old style could fracture at the step. That's what we were told at least.

The old Raptor setup works because the Raptor dampers stick out further from the head, removing the slop. I think all 3 spindles are the same length, but it's been a while since I had my hands on all three at the same time.
__________________
Don S is offline        Reply With Quote Quick reply to this message
Old 07-07-2014, 12:18 AM   #32 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Default

I cant find the shims and it looks like the updated spindle shaft id PV1441 but not out yet.
joecass2 is offline        Reply With Quote Quick reply to this message
Old 07-07-2014, 02:05 PM   #33 (permalink)
Registered Users
 

Join Date: Dec 2006
Default

Here is the JR part I used
http://www.fast-lad.co.uk/store/prod...oducts_id=2517

Here is where you can source the Thunder Tiger parts
http://www.modelhelicopters.co.uk/he....html?___SID=U

http://www.modelhelicopters.co.uk/he....html?___SID=U

If the reason for the change was because the stepped shaft sheared off then I will not wait for it to happen and purchase the new part. I didn't know that had happened, thank you.
Andy from Sandy is offline        Reply With Quote Quick reply to this message
Old 07-07-2014, 02:14 PM   #34 (permalink)
Registered Users
 
Posts: 1,401
 

Join Date: Sep 2010
Default

That was the reason given by the reps. I think it's in a thread on the other site.
__________________
Don S is offline        Reply With Quote Quick reply to this message
Old 07-07-2014, 02:27 PM   #35 (permalink)
Registered Users
 

Join Date: Dec 2006
Default

Thanks Don.

I wonder if it happened to someone who hadn't got rid of the end float and so with grip movement it hammered on the thrust bearing until the shaft broke?

I also wonder if a longer bolt would of held it all together?

Either way I have just placed my order with Midland Helicopters for the parts.
Andy from Sandy is offline        Reply With Quote Quick reply to this message
Old 07-07-2014, 09:24 PM   #36 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

Joe - the shims are available from Stormer Racing Hobbies from X-Ray Racing. Links below:

7x.2mm
7x.3mm
7x.5mm
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-08-2014, 06:57 AM   #37 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2006
Default

Thanks rob for all your help. They are out of stock right now. Should I order them from uk or wait for them to come back in stock?
joecass2 is offline        Reply With Quote Quick reply to this message
Old 07-08-2014, 01:05 PM   #38 (permalink)
Registered Users
 
Posts: 9,667
 

Join Date: Oct 2008
Default

How impatient are you?
__________________
= Rb43 =
Rob43 is online now        Reply With Quote Quick reply to this message
Old 07-08-2014, 03:33 PM   #39 (permalink)
Registered Users
 
Posts: 1,401
 

Join Date: Sep 2010
Default

I use these between the head and black damper. You could have these in 2 days or less.

http://www.mcmaster.com/#91437a248/=qwbznk
__________________
Don S is offline        Reply With Quote Quick reply to this message
Old 07-11-2014, 12:58 PM   #40 (permalink)
Registered Users
 

Join Date: Dec 2006
Default

My new feathering spindle and thrust bearings arrived.

The inner part of the thrust bearing is a very tight fit to get in the grips.

With just the parts supplied there is the annoying end float. I fitted the JR washers in place of the TT ones that go between the dampers and grips and the end float is gone but I can feel that I have pre loaded it a bit as the grips will not fall under there own weight.
Andy from Sandy is offline        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


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 © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1