Why my Zeal 325 always vibrates - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE

Go Back   HeliFreak > R/C Helicopters > Zeal Rotor Blades

Zeal Rotor Blades Zeal Rotor Blades Support and Discussion

LinkBack Thread Tools Display Modes
Old 03-18-2016, 07:55 AM   #1 (permalink)
Registered Users

Join Date: Feb 2012
Location: Egypt
Angry Why my Zeal 325 always vibrates

So it is my first FBL conversion for my 450, the head is Tarot DFC split lock equipped with IKON controller, and i have those new 325mm blades for it, it makes terrible vibration in the head,, first of all the blades are very stiff compared to my other CFs and also heavy, 33g each compared to 19-22g for my others.

I have balanced it very well, but it is still makes heavy vibs, the heli would destroy it self, other blades seems to spin very smooth in the same head, then i tried the Zeals in my other FB soft damper head and it also makes vibration but very less than the DFC.

Is there something i mess here?, also there is a 0.3 mm difference in thickness between grips, i shimmed it but no difference..
kemo1988 is offline        Reply With Quote
Sponsored Links
Old 03-19-2016, 05:16 AM   #2 (permalink)
Registered Users
Posts: 2,717

Join Date: Nov 2012
Location: Germany

Check the blade's cg..
LOGO 700, LOGO 600 SX, Forza 450, Oblivion 300+
1:44.533 on Mount Wario.
Johnny31297 is online now        Reply With Quote
Old 03-19-2016, 05:55 AM   #3 (permalink)
Registered Users
Posts: 5,095

Join Date: Feb 2015
Location: Sagnasty, MI/from Ventura CA

That's strange, have used zeal blades in 4 sizes on 3 different helis and all have been perfectly balanced right out of the package. 255, 285, 2 sets of 325's and 360mm. Maybe you got a bad set or there's something else going on?

A friend of mine that likes to remove the mainshaft/head assy and balance the whole thing added tape to his but all he did was throw his zeals out of balance.
Mini Protos 6s stretch×3/Chase360/Trex450 sport v2dfc/SK540's/180cfx/300cfx/ Walkera DF36/V977/UMX Pitts/RochobbyMXS 3d v2/Rochobby Nemesis NXT/RareBear funfighter620mm/one man's rc heaven is another man's rc hell
learnedthehardway is offline        Reply With Quote
Old 03-19-2016, 12:37 PM   #4 (permalink)
Registered Users
Thread Starter Thread Starter

Join Date: Feb 2012
Location: Egypt

actually, i just checked CG, by rolling it on main shaft, bolted the blades together and scissored it and marked them in the middle, put em on a shaft and i got about 2 mm of movement difference before the other blade tips, fixed it with tape opposite to each other until they tip almost at the same time., the blades have the exact same wieght.

just did a quick test spin holding the heli in my hand, as soon the head loads up, i find it pretty smooth, may be stiff dampers requires the blades to be perfectly balanced.

but anyway, this set of blades is pretty bad because i have a large wide tape on one blade to just correct for the 1 gram difference in weight plus the other tip root tape to bring on the cg, and still have a 0.3 mm difference in blade grip, one is holding well in the head and the other is playing up and down, should i shim it or leave it.
kemo1988 is offline        Reply With Quote
Old 10-24-2016, 06:31 PM   #5 (permalink)
Registered Users
Posts: 5,892

Join Date: Nov 2009
Location: PA

Originally Posted by kemo1988 View Post
just did a quick test spin holding the heli in my hand,
Never do this /\
Here's how I do all on mine.
Check cog one at a time and mark.
Hand them on finishing nail and compare cog as well as if they hang parallel.
Weigh and mark lighter one
Add weight to the lighter one , loose pieces of packing tape till there the same. Now you know how much you need.
Place on blade balancer and apply the same amount of tape at the point they balance and in favor of correcting cog if needed.
Wrap tape and trim at trailing edge.
Start all over again.
COG the same, weight, hang parallel to each other and even on balancer.
Do this and spin up just below mid stick close to 0 deg and make sure the pitch is equal at mid stick/ digital gauge also rock the blade and see where the slop goes. Make equal.
My 450 at 0 will go -.2 / +.2 on each blade , smooth as silk
Align 450Pro 3GX, 500ESP/DFC 3GX, 500L, 550 DFC MicroBeast , Velocity 50 Vbar OS55 HZ-R, D380 DFC D420, G500 Sport Microbeast, All HW V4, 210 Quad, SP RACING F4 EVO F3 OSD/PDB Stack, Emax 2205 1000TVL Aomway Commander V1
bad007 is offline        Reply With Quote
Old 12-17-2016, 09:57 AM   #6 (permalink)
Registered Users

Join Date: Jun 2010
Location: Tucson, AZ

While not a fan of Zeal blades, one thing I can say is that you can't compare your FB blades and FB setup to a DFC FBL. The blades are waited different and the setup is different. You can try a set of FB blades on it and see if the problem is still there. You can use FB blades on a FBL, just will be a little quicker on the cyclic. This way you will be able to tell if it is the blades or your setup.
Trex 700 DFC Ikon 2 / SAB Goblin 500 Sport Ikon 2 / HD Cell 500 Ikon 2 / Trex 500 ESP Ikon
Solmanbandit is online now        Reply With Quote

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
Trackbacks are On
Pingbacks are On
Refbacks are On

Copyright © VerticalScope Inc. All rights reserved.

SEO by vBSEO 3.6.1