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JR-Spektrum . Gyro Hobbies . E-flite

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Align T-REX 600N 700N > T-REX 700N My first build thoughts on the 700
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

Quote 
because *Raptors* only have two bearing blocks. I'm guessing you fly raptors - do they have bearing that last 10 flights?

I have never had a set of raptor bearings go bad that were not a result of a crash. THat being said, I am using the greaser and going over every bearing with quality grease.

I finally go the main shaft polished enough to were it slides in the main blocks smoothly.


POWERMALEX.. I was going to try a raptor 50 fuel tank fitting but it is too small. I am going to run to the auto parts store today to see if I cant find something. If not I will go through the mcmaster carr cataloque.

**Unattended children will be givin a shot of espresso and a puppy**
08-07-2008 12:43 PM
 
 
jpla010
Senior Heliman
Location: Auckland, New Zealand

Its all the rage to include cheap bearings in kits these days. Don't believe me check over on the JR forum, they did it with the vibe 50. And why not? Helps keep the cost of the kit down and most of us will crash and wreak the bearings before they go bad anyway.

That being said if you don't crash often you can probable justify paying extra for higher quality bearings. RC bearings are a great source or alternatively use a greaser like a lot of ppl have already suggested to increase the life of bearing/smoothness.

Jonathon
08-07-2008 01:48 PM
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

no my raptors never chewed bearings but i never flew them this hard when i had them and also i never had a raptor 90 to compare.

i'm going to put it down to crap bearings just now but if the replacements go then i know the problem isn't bearings on their own.

cheers


www.waterfoothelis.com
08-07-2008 06:14 PM
HOMEPAGE  
 
 
majestic12
Senior Heliman
Location: truckee, ca

curious on the bearing issue...

did your shims fit?...did you sand one down to fit?....or did you cram in the .8 shim like alot of people?

FURY for sale
TREX 600N PRO OS 50 HYPER-Align pipe
TREX 700N PRO OS 91 MP5
HF:STMPNGRND
08-07-2008 07:09 PM
 
 
Spookyeng
Heliman
Location: Gulf Breeze, FL USA

I used the Synergy shim when I built my kit. One shim and all the play was gone. I have some extra shims if anybody need one. Take it easy.

Jason
08-07-2008 07:35 PM
 
 
raptorheli2
Elite Veteran
Location: rip off britain and no changing it

i had to buy a shim kit from tamiya and use 0.4mm shim. the stock shims were far too thick. 0.4 was just right.

cheers


www.waterfoothelis.com
08-07-2008 07:46 PM
HOMEPAGE  
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

My problem with the main bearings was my main shaft was oversize. So I had to polish it down a little.The bearings are just crap.

**Unattended children will be givin a shot of espresso and a puppy**
08-07-2008 08:04 PM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

On to my next gripe...

All the tail gears are EXTREMELY tight. To the point as is it would be unflyable. I have to play with the mesh in the front and tail.

AND with both booms the tail housing was off a few degrees. So I guess I elongate the hole in one of the boom.


I know the next post I will get is "MINE" didn't have these issues. Well, mine does. And yes I do know how to build properly. So I must say at this point I am not too happy with the way the build is progressing.

Oh and it turns out the mainshaft was not over size, the main bearings were UNDERSIZE on their ID.
Main shaft 12.03mm
bearing 11.98mm

So it looks like I find proper size QUALITY bearings so I dont have to polish mains hafts if I ever bend one.



**Unattended children will be givin a shot of espresso and a puppy**
08-08-2008 02:25 AM
 
 
S76 Mech
Elite Veteran
Location: Hatboro, Pennsylvania

that sucks about the bearings...

just got my kit tonite, hope my kit doesn't have these issues.

08-08-2008 02:55 AM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

S76 Mech

I hope yours goes together more smoothly than mine is.

I KNEW not to take the first one in the stack...LOL

I am at the point now where I am going to get hold of assurance and see if I can get a new kit, as this one is a POS!!!

**Unattended children will be givin a shot of espresso and a puppy**
08-08-2008 02:57 AM
 
 
louk05
Key Veteran
Location: Flying in BelAir Maryland

Mine went together perfectly. i had no problems what so ever with my build.

You are the first I have heard to have this many problems.
Well good luck with it and could you post some pics so we know just what to look?for,
I havr about 15 flights on mine and i have checked everything after every fligh.

Good luck with the rest of the build. In the end you will love it.

Fly Hard,Crash Hard,Upgrade, Align,AMA#906056
08-08-2008 03:10 AM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

Quote 

Good luck with the rest of the build. In the end you will love it.


Nope, I wont have it. I am getting a new kit from assurance and selling it. This is a second run bird and with typical Align they probably rushed it through production and alot of QC fell through the cracks. I WILL NOT be another Align buyer. This one will be sold for another SYNERGY.I am VERY meticulous with my build and if something doesn't line up I will make it. But this one is turning into ALOT of extra work.

**Unattended children will be givin a shot of espresso and a puppy**
08-08-2008 03:15 AM
 
 
louk05
Key Veteran
Location: Flying in BelAir Maryland

That is very odd. You must have got a bad apple. i know quite a few guys who built with no problems at all and everything lined up fine and just like mine. I had no problems at all

You might want to give the other kit a try as i am sure you will find it to be fine.
Well I did have one small problem. My canopy had a few small cracks in it and i called them and they have a new one on the way.
I was very happy with this as no one even sells the canopies yet. they just came out with the unpainted ones. its been a week now but I amm sure it will be here soon

Well give the new kit a try and atleast they are trying to make it right.

Can you post some pics of problems you are having so we know what to look for as it could be helpfull with any spare parts?? Thanks a lot and hold in there. The 700 is a great kit

Fly Hard,Crash Hard,Upgrade, Align,AMA#906056
08-08-2008 03:24 AM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

LOUK,

I have owned almost heli Align has made, from the first 450x up to this one. Only one I didnt have was the 600E. And I know first hand their QC sux.

Its hard to show gear mesh in a pic, but I have fully dissassembled both ends and and re-assembled. The mesh is better but not right. I am glad I dont trust their team to put stuff together right and they didnt. The input and output gears for the TT were not fully seated in their mounts. Its still tight but may wear in.

I will finish this build but only because I dont trust another one to be any better. And I know I can get it assembled better.

Quote 
That is very odd. You must have got a bad apple.

Very well possible because it does happen with ANY product. But I must say the head went together beautifully..

**Unattended children will be givin a shot of espresso and a puppy**
08-08-2008 03:43 AM
 
 
J.D. Wilson
Elite Veteran
Location: Nashville, TN

Hey bad I remember you and I got our 600n's when they first came out last year at about the same time. I had too many QC problems with the 600n's so I sold them all went Vibe 50 (glad I did). But I have to admit after seeing the 700n in person at my field I am seriously considering getting one (in a few months after all you guys are kind enough to do the beta testing). I know a few guys and they had little to no issues in the build. I think you'll be impressed as you build and may decide to keep it. If so please keep up posted on the progress and your impressions.

Let your flying do the talking - don't talk about your flying
08-08-2008 04:53 AM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

Quote 
Hey bad I remember you and I got our 600n's when they first came out last year at about the same time. I had too many QC problems with the 600n's

I remember that. Mine 600 is still going strong although it doesnt see the air anymore. If the 700 flies even remotely as well as my N9 I will probably keep. One can never have too many gas guzzlers...

I will keep the progress updated and post pix as soon as I can.

**Unattended children will be givin a shot of espresso and a puppy**
08-08-2008 04:59 AM
 
 
Qrrambero
Veteran
Location: San Francisco / Bay Area

I can see a from Bocabearing.
If they are smart, they will start to sell Aling 700 Bearing set.

Ae
08-08-2008 05:46 AM
 
 
Helinutnz
Elite Veteran
Location: below 42 South

Quote 
I know the next post I will get is "MINE" didn't have these issues. Well, mine does. And yes I do know how to build properly. So I must say at this point I am not too happy with the way the build is progressing.

I am not going to berate your concerns badraptor and will comment on my build. I have just received my kit so maybe it is a later version.

So far I have the frame and head together.

The issues.
I think the links could go on the rods a little straighter and have problems with them being a little crooked. The two rear swash rods are not long enough. They need 50mm rods and not 42 mm rods.

Everything lines up perfectly except on hole for the radio mount tray which I have elongated slightly to allow the button head screw to seat properly.

I elongated the holes for the governor mount and shaved the mount slightly to straighten up the govenor mount and place it over the magnet squarely.

I think my clutch is a little wobbly but time will tell if theres any vibes from it. I balanced the setup on my highpoint before fitting it and it required a small amount of adjustment. (balancing is not considered and issue as I have to do it on all heli's)

The stab seesaw is a little tight on the bearings so a small ajustment is required there.

Thats about it....all very minor issues although I would like to see the links go on a little straighter.

All other issues you had I haven't. The mast fits the bearings perfectly and slips right down easily....the frame was square and the clutch lines up squarely. My head except for the see saw is as good as my hirobo stuff...I really can't see any QC issues with it and I am picky....damn it's beefy.

So far it's almost been plug and play which is not what I was expecting. The canopy is first class. I am using the 91 sz-h so the fuel tank wasn't an issue for me although it's a really strong tank so not easy to get in. (I ended up putting it in during the frame stage but not looking forward to getting it out if I have to on the field!)

The tail meash is super smooth as is the main gears and the front tail drive gears. All rotate without appreciable wobble unlike my 600 did although this made no difference.

The tail torque tube is mostly straighter than the 600 ones I have seen and I do my normal setup of testing it in each 90 degree position to get the least run out (if you dont do this you should!!!)

I used my greaser on all bearings that were not fitted yet and greased the mains by pushing it in between fingers. Used better grease...pushed out the manufacturers stuff. I find I get better bearing life this way.

I have to say as unbiased as possible (remember I run two hirobo's and not just trex's) that I am impressed for the value this kit offers. It will be interesting to see the longetivity and flight characteristics of this kit.
Because of the crash costs this probably is quite a good 3D heli to have. Low on the "care" count when it comes to fanging!

Cheers
helinutnz.
08-08-2008 06:04 AM
 
 
Jonty
Veteran
Location: London

Helinutz, my build experience was pretty much spot on yours. Apart from a few minor tweaks it went together great and flys even better. Now I can tell you if Helinut doesn't have too many issues with this heli then it is a GOOD heli
08-08-2008 08:24 AM
 
 
Helinutnz
Elite Veteran
Location: below 42 South

Quote 
Now I can tell you if Helinut doesn't have too many issues with this heli then it is a GOOD heli

I take it you are calling me a fussy bugger John....LOL.....YOUR RIGHT!

Yes maybe they have tweaked QC after the first batch. I certainly think it's far from a budget heli. I can really fault the plastics or the CF. It's hard to tell how good the metal is as it's annodized but it seems well finshed and there has been no suspect thread holes.

Please note that these are bigger balls than a lot of other heli's. I had to modify my ball link pliers with the dremel to fit as I snaped a ball link off and got the pliers stuck on the ball putting a mark in it...HMMMFFPH. Put that ball in a less critical place. After modifying the lpiers it's all good but now maybe too big for my hirobo links so another set of pliers may be in order.
The links however do fit rather well on the balls without slop or tightness. One of the better fits I have seen. Hirobo has been very good here and I reference hirobo a lot....I know...but it's a good quality measure. Time will tell how they handle the abuse.


John those 50mm rods I picked up are perfect...they allow the links to get a good purchase on the rod....the supplied ones are dodgey small.

The bolts and screws would in my opinion be of lesser quality than the rest of the kits seems....thats only because I have mostly exclusively used 12.9 alloy steel bolts and screws from mc master carr and had a good run with them. They don't strip out the hex and fit nice and firm in the drivers. I think these are probably ok for the job but dont go expecting to swing on them with your driver and not have the hex strip out. Hey they work....so they are fine.

Getiin on to the tail section tonight so will post my thoughts on that a bit later.
08-08-2008 09:32 AM
 
 
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Align T-REX 600N 700N > T-REX 700N My first build thoughts on the 700
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