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JR Heli Vibe - Airskipper - Sylphide - Venture > JR Vibe Fifty build tips and issues.
 
 
reiserrob2003
Veteran
Location: Brockton, MA.

Just wanted to create a thread for builders that addresses any setup tips,shortcuts, and concerns when building the Vibe 50. Any feedback would be appreciated.
05-15-2008 03:38 PM
 
 
BarracudaHockey
rrMaster
Location: Orange Park FL

Swap the servo installation steps and you have better access to the lower servos.

The washout arms are backwards, put a screw through the ball, snap it in from the inside, and screw the whole thing into the swashplate.


Don't tighten any frame bolts till you square it on a piece of glass.

Tighten the main shaft bearing blocks with the shaft installed and make sure you can spin it freely and move it up and down while nipping up the bolts.


AMA 77227
http://www.jaxrc.com
05-15-2008 04:55 PM
 
 
DS 8717
rrProfessor
Location: Here wishing i was somewhere else

most of the ball links are too tight,get the sizing tool.Use red loctite on the inner balls on the swashplate.
05-15-2008 04:57 PM
 
 
dhc8guru
Senior Heliman
Location: Texas

1.
On page 11 they have you install the tail pinion assy into the frame. Skip this until you come to assembling the the rest of the tail. Assemble driveshaft into the pinion and then install the driveshaft into the boom then install the completed tail assembly. The only reason I suggest this is because the driveshaft is a tight fit into the drive dog and its difficult to install with the pinion assy installed on the frame. Also they tell you to use green locktight to keep the tail driveshaft intermediate bearing in place..I advise using a small drop of CA instead. It can be removed later using CA disolver if you need to replace the bearing. I tried High strength thread locker and it doesn't hold the bearing once you try to install it in the tail boom. Since the offset of the bearing on the shaft is critical to avoid harmonic vibration, threadlocker will breakdown and flake away possably allowing the bearing to move internally. This may not be likely but I don't want to be the one to find out.

2. Pay close attention to the screw sizes -8, -10 and -12 are all very similar looking so use the screw charts to verify the size before installing.

3. You will definitely need a ball link sizer and install plyers.
JR ball links are a real tight fit and this is probably why people are breaking the washout ball links.

4. Keep the three bearing blocks loose until you are installing the mainshaft, if you don't you may find the shaft doesn't line up with the blocks tightened down.

5. There is no clarity on page 9 as to which end to install first on the autorotation assembly. If you get this backwards, the oneway bearing will work opposite of normal. The end with the larger radius and machined sides on the end faces up....or atleast this appears to be correct, after I got everything together it appears to function properly.

6. Pay close attention to the all area's relating to lever arm and head assembly... Like on page 14 they give lever arm positions for both 120° and 140° eCCPM mixing and the arms have two different spacers depending on which head geometry you are using.

7. Someone else made mention of paying attention to which side the frames are to be assembled..this proved to be a very useful tip.

8. On page 20 I couldn't tell whether the frame spacer on the rear landing skid support went with the front hole or back and I was informed in a prior posting that it goes in the back hole.
05-15-2008 05:44 PM
 
 
Parsifal
Veteran
Location: Singapore

DEFINITELY pay attention to the frame sides, or there'll be considerable swearing and jumping around when you get to installing the tail control arm... and the diagram appears odd... then you notice the holes are not the same, then you flip the thing around and realise the picture is backwards, then you realise... it isn't the picture thats backwards, then you think, maybe it will work, then you realise it won't work, then you remember you've epoxied bearings into the frame, then you think... maybe they'll be ok, then you realise, the flanged side is on the wrong end, then you remember that was the first step you finished on the frames... then you realise you're going to have to disassemble the whole thing, then you cry like a girl.
05-16-2008 03:40 AM
HOMEPAGE  
 
 
tchavei
rrProfessor
Location: Portugal

HAHAHHA @ Parsifal ROTLF


Heli construction assumes one being careful and slow, especially on steps where you have to use glue

Tony


--------------------
"Perfection and patience usually walk side by side..."
05-16-2008 07:34 PM
HOMEPAGE  
 
 
Parsifal
Veteran
Location: Singapore

after that misadventure, i took my time and finished it just now, 3 whole weeks after round one. its 3am here and a glorious 3 day weekend ahead.

Hope tomorrow goes well!

Regards,

Pars
05-16-2008 08:18 PM
HOMEPAGE  
 
 
reiserrob2003
Veteran
Location: Brockton, MA.

one thing I've never dealt with on a heli before is clutch run out. Does anyone have experience with eliminating run out and the method for which you use?
05-17-2008 06:41 PM
 
 
reiserrob2003
Veteran
Location: Brockton, MA.

can you flip the washout arms around so the ball links are the same way or will it screw up the rest of the head assembly

Upon further investigation every other heli
i own has the washout arms mounted to the leading edge hole on the washout base. I'm going to flip the arms over and put them into the opposite holes. I think JR made a mistake with the instructions
05-19-2008 06:15 AM
 
 
BarracudaHockey
rrMaster
Location: Orange Park FL

They didn't make a mistake, they borrowed the parts from the 90 which has. I believe, leading edge delta arms.


AMA 77227
http://www.jaxrc.com
05-19-2008 04:44 PM
 
 
DS 8717
rrProfessor
Location: Here wishing i was somewhere else

The 90 has trailing edge arms. The Vibe 50 is a copy of the Aurora and Xcell head.
05-19-2008 05:09 PM
 
 
BarracudaHockey
rrMaster
Location: Orange Park FL

Had that backwards, the Vibe 50 has leading edge arms, the 90 has trailing edge arms.


AMA 77227
http://www.jaxrc.com
05-19-2008 06:49 PM
 
 
tchavei
rrProfessor
Location: Portugal

Quote 
The Vibe 50 is a copy of the Aurora

I'm sorry. The vibe 50 hit the streets first so, officially, the aurora is the copy

Tony


--------------------
"Perfection and patience usually walk side by side..."
05-19-2008 11:52 PM
HOMEPAGE  
 
 
ASlorenz
Heliman
Location: Switzerland

05-19-2008 11:54 PM
 
 
DS 8717
rrProfessor
Location: Here wishing i was somewhere else

I believe the Avant conversion hit the streets long before the Vibe 50,about 2 years to exact.
05-20-2008 02:14 AM
 
 
tchavei
rrProfessor
Location: Portugal

Hmmmm

fair enough. I still dig the vibe more

Tony


--------------------
"Perfection and patience usually walk side by side..."
05-20-2008 02:44 AM
HOMEPAGE  
 
 
reiserrob2003
Veteran
Location: Brockton, MA.

About time Avant came out. They are a sweet looking machine though. Too bad its a little rich for my blood, I'll take my Vibes
06-05-2008 04:42 PM
 
 
fiveoboy01
Veteran
Location: Waunakee, WI - USA

Ok you guys have me worried on the washout arms, I installed them according to the diagram... Are the instructions wrong?

Pic:



Trex 450SA blinged, Trex 600N, DX7
06-06-2008 09:48 PM
 
 
tchavei
rrProfessor
Location: Portugal

Instructions are correct. Dont worry about it

Tony


--------------------
"Perfection and patience usually walk side by side..."
06-06-2008 10:24 PM
HOMEPAGE  
 
 
hovernut
Senior Heliman
Location: Fraser Mi

Just inspect them and make sure they did'nt crack when you poped them on.
06-06-2008 11:17 PM
 
 
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JR Heli Vibe - Airskipper - Sylphide - Venture > JR Vibe Fifty build tips and issues.
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