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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › Another maingear stripped..
11-21-2008 12:36 PM  10 years ago
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MrMel

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Gotland

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Another maingear stripped..
Was flying, testing my Vbar so I was not even flying hard, and bam, stripped the main gear.

My gearmesh was _perfect_, the tooths that was removed was removed totally, i.e. gearmesh was good when they let go.

Outside it was -3C/27F.

Time for a Mod 1.0 gear Align?

Any other people out there with possibility to machine a new maingear & pinon? I would buy your product in a heartbeat.
Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more
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11-21-2008 01:14 PM  10 years ago
F1 Rocket

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Melbourne, Florida USA

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There is a post on one of the other "Freaky" forums from CNC Lab about a mod 1 gear set they are making for the 700. I've asked for details (price, availability) but have not heard back from them.

Danny
Danny - DemonAero Support Team
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11-21-2008 02:26 PM  10 years ago
Janis

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Århus, Denmark

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Hi Guys,

This suck. Ok I havents stripped one yet but I want to by an scorpion 4035-560 or an Pyro from Kontronikit could be a problem then with the cold weather here in Denmark

It should be possible to get an Maingear done. To keep the same diameter it must have arround 114 teeth. The diameter would be 116 mm, almost equivalent to the 164 teeth modul 0,7 which is 116,2 mm.

regards Janis
...exist something better than V-bar and women...
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11-21-2008 02:55 PM  10 years ago
MrMel

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Gotland

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Yup, with a 14T pinion it would give 8.14 ratio vs todays 8.2

But with 14T and Mod 1.0 I would say stripping would be virtually impossible

Btw, this was on my Nitro, and I really didnt push it at all, perhaps half pitch pushout from hover.
Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more
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11-21-2008 03:20 PM  10 years ago
duke666

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Hampshire, UK

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I asked for details on the mod 1 too but no reply...

http://www.helifreak.com/showthread.php?t=103130

Duke
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11-21-2008 11:20 PM  10 years ago
jpla010

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Auckland, New Zealand

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edit: nevermindJonathon
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11-21-2008 11:31 PM  10 years ago
Rockohaulic

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Canyon Country, CA, USA, 3rd Rock from the Sun

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Outside it was -3C/27F.
Holy cow - that's cold!

How are the ball links holding up in that cold?
Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know
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11-22-2008 06:35 AM  10 years ago
MrMel

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Gotland

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I take no chances on that, Im running QuickUK...Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more
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11-22-2008 10:16 PM  10 years ago
Mapleleafs

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Ontario, Canada

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you think -3C is cold, up here in Northern Canada i have to deal with -25C for 3 months.....
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11-22-2008 10:27 PM  10 years ago
duke666

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Hampshire, UK

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Tell me you don't actually fly in -25???

Duke
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11-22-2008 10:28 PM  10 years ago
Arky

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Corfe Mullen, Dorset, UK

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you think -3C is cold, up here in Northern Canada i have to deal with -25C for 3 months.....
fuk that i think i would take up nitting.
Wee.Splat
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11-22-2008 10:32 PM  10 years ago
duke666

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Hampshire, UK

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If you take up knitting you could have a nice blanky to keep you warm while flying!

Duke
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11-22-2008 10:38 PM  10 years ago
Rockohaulic

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you think -3C is cold, up here in Northern Canada i have to deal with -25C for 3 months.....
You think that's bad, right now it is 72 deg F outside!

Oh wait, that's above zero!
Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know
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11-23-2008 04:38 AM  10 years ago
Mapleleafs

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Ontario, Canada

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fortunately i do not fly at -25C, but anything above -15C i am at the field flying for 1-2 hrs on the weekends....

yeah i know it sucks, so when you southerners have a bad day of flying, just think about us northerners who are freezing our asses off and not having the best time.
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11-23-2008 06:43 PM  10 years ago
majestic12

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Avon, CO

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Mine just stripped yesterday for the first time after running well over 10 gallons through it. I've been keeping a close eye on mine since the reports started coming out on teh stripping.

I was doing some mild 3D and some high speed circuits trying to break the sound barrier and started to hear a faint clicking sound. Came around on another pass to hear it from a different angle and by that time it was audiable to guys in the pits and then it let go.

3 teeth completely gone, the next 7 or so teeth are squished flat and the next 3 partially sheared of but still attached at the bottom.

Temp was in the 50's and I just went flybarless. I'm certain all the new availble power may have had something to do with it as I'm throwing it around a bit harder now but I would still classify my 3D flying as mild still.

I'm not really worried about it. The gears are cheap and this still by far the most fun heli I've owned.

TREX 700N Flybarless
HF:STMPNGRND
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11-23-2008 08:32 PM  10 years ago
HiroboFreak

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Central Coast, NSW, Australia

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The gears themselves may be cheap, but a resulting crash may not be!
I'd happily pay twice the price for a reliable main gear, than to Lawn Dart the heli due to a faulty part!
Something needs to be done about it for sure!

We should ALL send our stripped gears & consequential crash parts back to Align for replacement/compensation.

That should help them pull their fingers out.
T-rex700n VBar 5.3 Pro | T-rex700e DFC VBar 5.3 Pro | JR DSX9
Team RCBits | Team Lynx
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11-23-2008 08:43 PM  10 years ago
duke666

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Hampshire, UK

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+1 for that.

Duke
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11-30-2008 12:27 AM  10 years ago
Cameron

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St. Johns, Florida

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Main Drive Gear/164T HN7019-1
I guess align changed the material or something. That dash one on the end of the part number usually means a revamped part.


http://www.align.com.tw/shop/produc...roducts_id=2610
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11-30-2008 02:38 AM  10 years ago
cdrking

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Seattle

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Don't they sell them in a bag of 50 (main gears).

Jeff
To hover is divine, the alternative is rather PLANE.
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11-30-2008 02:53 AM  10 years ago
latesleeper

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OH

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I'm reading about mixed causes for the main gear stripping. Some are saying it the clutch stack bearing block and some are the maingear. There's an interesting read on the other forum about the clutch bearing block ovaling out where the bearing is set. The ovaling seems to be caused by the torque of the motor and flexing of the plastic block.... hard manuvers like tick tocks and pitch pumping.

If the clutch bearing block is the cause then this new maingear will not help.
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