Something isnt right?

[helinewbie2]

I've been building my raptor titan,and im almost ready to install the servos.I've ran into a few problems like the arms on the washout not lining up with the balls on the swash,but I managed to fix the problem with some shims.

I've got the head completed and installed and most of the linkages installed cept the servo ones.However something seems off,and i cant put my finger on it so i made a short video hoping someone can see something that's wrong.

http://www.youtube.com/watch?v=E1eqc2hx8do

If i need to do any kind of different shots just let me know and ill take the video.

TIA

David

[Motions]

What is it that you think is not right? Everything in the video seems ok but I would check the for/aft cyclic control arm and make sure it's centered. It looked a little off. It should be straight vertical with the A-arm base horizontal.

[helinewbie2]

I wasnt sure exactly how that arm went on the manual wasnt clear.As far as what i think is off well im not sure to be honest it just doesnt seem smooth when i move the various links even tho i sized all the links.

What is a good way to make sure the A-arm base is horizontal does it need to be perfect or is eye balling it good enough?

TIA

David

[Motions]

Just eyeball the arm to make sure it's level and then push the control arm into it so that it's straight up and down. You may not be able to get it completely perfect because the notches may not line up perfect but it will be very close.

Try twisting each of the links individually to see if they are stiff and resize if needed.

[BarracudaHockey]

http://www.raptortechnique.com check out his build guide and make sure you did it right. You don't need to shim anything if its done right.

[flyinfool]

You are right, something is very messed up but I can not be sure what from the video.
It looks like the Aileron belcranks are way off.
Take Andy's advice.

[savage]

The aileron lever should be at a 90 degree angle when the swash is level from left to right, looking from the front. It looks like the links need to be shorten.

[helinewbie2]

I've read the build guide from raptor technique,guess i missed a few things.Far as the shims on the washout they were needed the arms wouldnt line up to the balls.I had the same problem that Ray did in his dvd.Ill work on the aileron bellcranks i measured the links with a caliper not sure if the vario tool thats goes on it works correctly.

TIA

David

[Motions]

You have to remember, the link measurements in any manual are a reference. They are usually pretty close but it's just a starting point. Every model will be slightly different.

[BarracudaHockey]

The aileron bell crank ball should cover the screw in the middle of the elevator rocker, the bell crank will not be 90 degrees when its set up correctly.

Also what scott said is partially true, the first linkage from the servo to the first bell crank or whatever is a guide, the linkages in the head and all the intermediate linkage measurments should be correct. Differences in servo design will make that first linkage a best guess measurement in the book.

The Vario nubs, if seated up against the jaws correctly are right on and the best way going to setup pushrods.

[helinewbie2]

I sorta thought the links in the head and from the bellcrank to the swash should be right on with the manual just the servo links would be different.My biggest problem is im about as mechanically inclined as most people is computer inclined.Give me broke computer i can fix it give me a helicopter and some poorly written instructions and i scratch my head lol.

I wish someone would do a raptor build video like finless does with the electric heli's his instructions are far superior for goof like me.

Is any of the boards members in houston that would lend a helping hand if i can watch someone I can learn just about anything.

One more thing is MVPV0096 from heliproz a direct replacement for the stock swash?If not im gonna just buy another plastic one the one i have even with shims its still off.

Tia

David

[BarracudaHockey]

I'm not sure what you've got going on but the swash shouldnt be off and you dont need an aftermarket swash. Rays Helitech has a DVD set that covers the raptor and JR radios, you can also read Raptor technique or http://www.rcuniverse.com/magazine/article_display.cfm?article_id=836

[helinewbie2]

oops my bad i meant washout not my swash I have the same problem Ray did on his dvd with my washout.

[BarracudaHockey]

LOL Oh ok. Send me your address I'll mail you one or three.

[aevans692]

hi

First I am not sure what shims you are talking about, you should not need to use anything which didnt come with the kit..

second if every thing seems tight, and you dont have smooth action the main cause of this (if together proper and no other obvious causes) is the ball links being tight. I have a titan and had to resize all ball links ( only a little) as every thing was so tight and felt to be binding..

third add a little oil to the washout/shaft and work it by hand this is another part which starts off stiff.. not to much oil tho ( infact all the shafts should have a little tail too.)

Have a look at those things first, the raptor is a realy good kit and should be not to much trouble..

You should be able to move the head through all actions with little effort if you still cant then look at how tight you have done things up....

if this dont help you can email me if you need more advice..

Andy

good luck

[Motions]

Yes, sometimes you do have to shim things and grind parts to fit perfect. It all depends on how anal you want to be about the build. A perfect setup does require some modifications. It will still fly fine without these modifications but some people, like myself, enjoy the perfection of building and setup.

[aevans692]

I also like things to be perfect..

my point was that you should not need to be shiming parts to get a good factory setup..

[LAMAR COOLEY]

I also like things to be perfect..

my point was that you should not need to be shiming parts to get a good factory setup.. I would recommend checking out "My Raptor" site.
Gerard covers all linkages and in particular talks about the aleron bellcranks
and their 70 degree off set rather a 90 degree set up and the binding problems
he has encountered.
Hope this helps. :mrgreen:

[Motions]

Here's the link if anyone was wondering what Lamar was talking about.
http://team-raptor.net/myraptor/r50v2/raptor_50v2_aileron_linkage.html#aileron_control_l ever