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Synergy R/C Synergy N9 > Billet Crown Gear
 
 
Ironhide
Senior Heliman
Location: dexter mi us

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Just wanted to share my lastest edition to my Synergy . I learned that gears can be very expensive .

09-18-2009 12:00 AM
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canbarelyhover
Veteran
Location: Sunnyvale, CA

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beautiful. looks like no more stripped gears for you. does it weight significantly more than the stock?

-James
got nitro?
09-18-2009 12:20 AM
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thenewguy
Key Veteran
Location: Corvallis, Oregon Where there is liquid sunshine!

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That looks like a lot of work. It's very nice looking. Are you going with the upgrades tail gears also?
09-18-2009 12:37 AM
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Ironhide
Senior Heliman
Location: dexter mi us

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It weighs 15 grams more that the stock assembly . I'm sure if one wanted to redesign the gear it could be alot lighter . I just turned the blank as stock dimensions .

And I don't know if this will prevent any striped gears in the future crashes but I did install one aluminum tail gear along with one stock plastic gear giving it a shear point .
09-18-2009 01:41 AM
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Helico-pteron
Senior Heliman
Location: Northeast Illinois

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Looks cool

Synergy HZ | Synergy SR
09-18-2009 02:04 AM
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Shawn Pierce
Veteran
Location: Galliano, Louisiana

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Alright!, now sell em'
09-18-2009 02:27 AM
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greger
Senior Heliman
Location: Woodinville, WA

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looks sweeet!
09-18-2009 02:49 AM
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HiroboFreak
Senior Heliman
Location: Central Coast, NSW, Australia

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Very nice.

Have you flown with it installed yet?
Is it noisy?

T-rex700n Pro | T-rex500 ESP | JR DSX9
09-18-2009 02:53 AM
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Ironhide
Senior Heliman
Location: dexter mi us

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Just got her back tonight . Got it installed finally . The guy that cut the teeth gave me some tips on setting it up correctly . Took me a little while . I was going to wait and have it hard coated but its a prototype . Its gotta be tested right ?
09-18-2009 03:10 AM
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Helico-pteron
Senior Heliman
Location: Northeast Illinois

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Do test...

Synergy HZ | Synergy SR
09-18-2009 03:27 AM
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cdrking
Elite Veteran
Location: Seattle

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Did you use a different "gear cut" so the bevel gear and crown match?

Jeff

To hover is divine, the alternative is rather PLANE.
09-18-2009 03:39 AM
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Bart B
Key Veteran
Location: A thousand miles from nowhere

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Dude send that bad boy over here.I'll test it for you
09-18-2009 04:16 AM
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cgbole
Key Veteran
Location: tulsa ok

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So do you have the plastic tail gear on the output, or input shaft?
chuck

Magnito Chuck
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09-18-2009 06:08 AM
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Ironhide
Senior Heliman
Location: dexter mi us

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[quote]Did you use a different "gear cut" so the bevel gear and crown match?

The pinion and crown gear now "match" each other .This was cut on an old face cutting gear machine not a CNC like the stock delrin gear .

[quote]So do you have the plastic tail gear on the output, or input shaft?

I have it on the input shaft I believe . Its on the same shaft as the tail rotor.So it can be changed more easily .

A tip that I learned for setting up this gear is that the "heels" need to meet up . I set up the delrin gear incorrectly with the pinion driven in to far .I was told to shim up the crown gear instead .
09-18-2009 12:18 PM
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STUPINEER
Senior Heliman
Location: allen tx

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what did you pay for the gear?

gravity is king
09-19-2009 01:48 AM
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Ironhide
Senior Heliman
Location: dexter mi us

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Too much ! About 4 times what a stock gear costs . My vendor and I are working on the production price .

I guess something like this ,the setup cost for the machine is most of the cost .
09-19-2009 01:59 AM
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STUPINEER
Senior Heliman
Location: allen tx

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4 times is not really too much. although a little cheaper would be nice. If a metal one is the last on we have to buy. 55 bucks pluse shipping for the plastic one. that does not take long to make up the difference

"And I don't know if this will prevent any striped gears in the future crashes but I did install one aluminum tail gear along with one stock plastic gear giving it a shear point ."

Where did you find a aluminum tail gear?



gravity is king
09-19-2009 02:19 AM
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Ironhide
Senior Heliman
Location: dexter mi us

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I talked to ron lund . He has had them for a while now . He just added them to the upgrade menu . Hyper gear

And I just wanted to add . My first impressions of the brass spacer and shims was not so good . I first looked at it and was like whats this crap ! You have to take a hobby knife to the edge of the shim and cut it off .

It takes no pressure at all to shear off a shim ! Very cool idea ! Mine just took a little longer do to I used one aluminum and one plastic gear . So shimming them took a few .

Those Hyper guys do some very nice work !
09-19-2009 02:35 AM
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Helico-pteron
Senior Heliman
Location: Northeast Illinois

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I know Bart B has had success with them.

Synergy HZ | Synergy SR
09-19-2009 02:42 AM
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Entityofme1
Senior Heliman
Location: Birmingham, AL.

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Now that the hyper tail gears have been released I will go ahead and state that I was fortunate enough to test them before they were made public. These gears are a fantastic upgrade and can withstand insanely aggressive tail flying if installed/meshed/ lubricated properly. The first set I used lasted about 20 gallons and it seems that even then I had not dialed in the optimal mesh since this second set has shown less wear so far. Not to rain on the parade of the original poster but I would have to say I see no benefit to the billet crown gear "in the air". Crash durability may on the other hand be a different story, however I have had one stock crown gear last several crashes before. If you are still stripping stock crown gears during flight the mesh is not correct. I definately can sympathize with any frustrations someone may have with the stock crown gear but eventually if you stay with the model and use some deductive reasoning you will learn what the proper mesh should be and will quit stripping them(or go broke ). The stock crown gear still works just fine although it's stupid expensive for a plastic gear as is the main gear. Todd definately wants to improve this situation and realizes this will make the machine much more attractive to any would be buyers. Unfortunately he only has so much say in the company and it is not solely up to him to make the decision of making it cost less.
09-19-2009 06:48 PM
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Synergy R/C Synergy N9 > Billet Crown Gear
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