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Home✈️Aircraft🚁Helicoptere-MikadoOther › How do you secure your pinion on the Tango shaft?
07-23-2006 10:24 PM  14 years ago
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comet

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Neuilly sur Seine, Fr

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How do you secure your pinion on the Tango shaft?
Do you make a flat edge on the shaft?
How?

thx
VT "slow&low"
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07-24-2006 12:22 AM  14 years ago
Professor Fate

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Goose Creek S.C.

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My Fun600,Hacker and AON, I just tighten down the screw w/locktite on the screw. I don't flat'n the shafts on any motors.Welcome my son, Welcome to the machine
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07-24-2006 12:28 AM  14 years ago
comet

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Neuilly sur Seine, Fr

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I was thinking, I sure don't want to messup with a Dremel on the shaft...

I probably need to secure it better (the loctite evidence was very little...), and buy a new Huddy Hex tool to screw this nice and tight.

thx P.Fate
VT "slow&low"
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07-24-2006 03:15 AM  14 years ago
oldboldpilot

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Southern California

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comet, Mikado pinions come with a special rimmed set screw.

However, you can only use them once. I experienced slipping pinions
because I ordered a set of Mikado set screws, but was sold just ordinary set screws - no rim.

I could not find a parts house who actually had Mikado rimmed set screws.

So I ground a very small flat on the motor shaft using my Dremel. The grinding wheel I used measures 3/8 in diameter by 1/8 thick. The 1/8 thickness is perfect - even standard set screws don't slip..
Helis are Man's Defiance of the Laws of Nature - OCHC
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07-24-2006 03:07 PM  14 years ago
SBK

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NE Ohio

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It is pretty easy to grind a flat on the shaft with Dremel. I didn't use to grind the flat but with the modern day high rpm setups, I think we should. Here is an interesting thread:

http://www.logoheli.com/LOGObb/view...vote=viewresult
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07-24-2006 04:34 PM  14 years ago
comet

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Neuilly sur Seine, Fr

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thanks folks,

I finally grinded an "optimum" flat on the shaft; my concern was the shaft moving around as I worked on it.
Everything went fine of course; you sometimes get the fear factor...

I am also using a rimmed screw with loctite
VT "slow&low"
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