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Next-D › rave env main gear problem
10-25-2011 06:34 PM  6 years agoPost 1
vicent99

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spain

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Hi , I have build a rave env fbl electric and I am having problem with the main gear . it goes up and down while it turns and it also seems to be eccentric .

here you have a video of the problem , I have tried 3 different main gear and all are the same. what is my problem.

http://vimeo.com/30944370

thanks a lot

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10-25-2011 09:22 PM  6 years agoPost 2
MikeyD_From_Indy

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Carmel, In

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Maybe not the gear, but the one way bearing housing. Has this been crashed?

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10-25-2011 09:23 PM  6 years agoPost 3
vicent99

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spain

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not just build out of the box.

it comes from the raffle of the 3d masters

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10-25-2011 11:30 PM  6 years agoPost 4
Josh Kussman

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Superior, NE

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i wonder if your main shaft is not true because thats weird that both gears move the same way. may be just a bad one.

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10-26-2011 12:56 AM  6 years agoPost 5
mdu6

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Montreal

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This is not as bad as it seems.

The gears are injected molded - not machined - this is why they are not perfectly true. This is often the case with most of the newer machines (I have seen it with many vendors).

It is easy to correct. Just find the high spot - apply some pressure on top and spin again. It takes a couple of trys and you can get it straight. It will not move after that.

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10-26-2011 01:53 PM  6 years agoPost 6
vicent99

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spain

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Yes but it not normal that 3 main gears has the same proble , and also I haven´t read any other eprson with this problem .

this is why I am asking.

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10-26-2011 02:53 PM  6 years agoPost 7
Sky Dancer

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Bryan, Texas

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While there is always some out of round to all plastic molded gears, I believe testing an unloaded system (no blades) might result in an auto clutch that does not completely engage and self center itself. You could always get the machined helical main gear. It's runs very true and is pretty quiet and that would help to confirm if there might be a problem with your auto clutch.

I've also seen some cases of plastic gears that have been overtightned when being installed causing some distortion. If you overtighten the TR takeoff gear you can split the gear near the screw and cause some additional wobbling.

Keep up your rotor speed !

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10-26-2011 03:41 PM  6 years agoPost 8
vicent99

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spain

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ok , the thing is that I email to to people of curtis enterprises and I had no answer......

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10-26-2011 05:33 PM  6 years agoPost 9
Ejeremy

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Bourbonnais,IL

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Try this email.

tech@curtisyoungblood.com

Or call and ask for Brian at 1 (979) 779-2172

Jeremy

Team Futaba
Team Thunder Tiger
Team Radix
VP Powermaster Fuels

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10-26-2011 05:36 PM  6 years agoPost 10
vicent99

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spain

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I email to that adress , and get no answer , I am frome europe phone calls are to expensive.

thanks

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10-26-2011 06:25 PM  6 years agoPost 11
vicent99

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spain

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in flight there is a huge vibration , because it cause a vibration that affects to the v-bar sensor.

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10-26-2011 08:01 PM  6 years agoPost 12
Buzzin Brian

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College Station, Texas

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I actually have emailed you a couple of times. Are you not getting them?

I actually doubt the vibration is comming from the gear if the mesh is not to tight. If you have tried 3 gears with the same issue something else is wrong. I say this because that gear as well as the model have been out for for sure long enough that if this was a problem it would have come up many more times than now. How is the unit mounted number 1, and have we done anything to determine if something else might be causing the vibration?

I will certainly help if I can.

Brian

Build it, fly it, crash it. Repeat as often as needed.

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10-26-2011 08:02 PM  6 years agoPost 13
vicent99

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spain

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yes I have just recieve them.

thee v-bar is mount on the front plate , I don´t think that there is something else that could cause a vibration the model is just build out of the box.

and in the video you can clearly see the main gear making a oscilation with very few rpm , so you could imagine what it does at 2000 rpm.....

I have email nick to know if this happend to him , but I havent got and answer.

thanks

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10-27-2011 07:04 PM  6 years agoPost 14
BlakeMcBrayer

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Georgetown, Ky

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The thing that I noticed is that both the main gear and auto gear were moving up and down together. You might want to rotate the main gear by hand against normal rotation. The auto bearing will allow you to do this without the auto gear or main shaft rotating. Then check it again.

If they are still moving together, then it has to be something in the auto hub assembly or main shaft. If they are moving up and down at different times after you rotated it, then it's the gears themselves.

Vicent99, you do realize that BUZZIN BRIAN is the head tech man at Curtis Youngblood Enterprises. He is the one to help you.

Don't come off the throttle untill you see your GOD!

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10-27-2011 07:41 PM  6 years agoPost 15
vicent99

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spain

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I know about brian , Thanks to all , my final solution was a little bit drastical just putt off blades and put the motor at 100% until the gear get hot and get RE-modeled.

it,s ok on flight now.

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11-28-2011 03:15 AM  6 years agoPost 16
trexstuntin3d

rrNovice

Ca

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pm sent
Blake I sent you a PM

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