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HomeAircraftHelicopterSynergy R/COther › 2 teeth chewed up on crown gear!
04-05-2009 03:03 AM  9 years agoPost 21
cdrking

rrElite Veteran

Seattle

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Recommended GY611 settings:

GY-601/611 Gyro setup

Step 1: Set gyro direction

Step 2: Set mode to (AVC)
Step 3: Set flight mode to 3D
Step 4: Set limit A, B anything over 120% is good
Step 5: Set gain to 35%, no more than 37% gain is needed.
Set start delay both A and B to 15%
Set stop delay both A and B to 40%

Note:
Start and stop delays are needed when flying a helicopter with a very stout torque tube design. Keep in mind that increasing the rudder end point will give you a faster pirouette rate on both gyros.

To hover is divine, the alternative is rather PLANE.

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04-05-2009 03:18 AM  9 years agoPost 22
ch-47c

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san jose, ca

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missle,
Go to http://www.freestyle.com and click the setup button. cdking posted some info from the website. Check it out as it is useful. I didn't see the GY502 and never used one; however there is contact info for Todd Bennett and he may have numbers to pass on readily. I think the 502 is similar to the GY611. He should be able help you and returns email. If you catch him on the phone, he will talk.

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04-05-2009 03:53 AM  9 years agoPost 23
cdrking

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Seattle

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You should have no problem setting the delays into the GY502.

To hover is divine, the alternative is rather PLANE.

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04-05-2009 03:58 AM  9 years agoPost 24
missle

rrApprentice

West Chester, Oh

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Thanks guys and I'll definately be adding some delay.

CH-47c, that link goes to some kind of home design website but nothing to do with heli's.

WATCH OUT!!!!!!!!

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04-05-2009 04:05 AM  9 years agoPost 25
cdrking

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Seattle

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Freestyle3d

To hover is divine, the alternative is rather PLANE.

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04-05-2009 08:38 AM  9 years agoPost 26
ch-47c

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san jose, ca

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missle,
Sorry, I was typing in a rush, my bad. It is http://www.freestyle3D.com.

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04-05-2009 08:39 AM  9 years agoPost 27
ch-47c

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san jose, ca

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...

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04-05-2009 04:55 PM  9 years agoPost 28
bkervaski

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Birmingham, AL, USA

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I didn't read all of the replies but one of our local guys had his crown gear destroyed because he had vertical play in his main shaft as his stock main-shaft collar had moved ever so slightly creating a situation that whenever he loaded up the head it changed the gear mesh.

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04-10-2009 02:38 AM  9 years agoPost 29
Entityofme1

rrApprentice

Birmingham, AL.

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Yeah I am the crown gear stripping champion of the universe. No others can compare to my abilities with a crown gear. I have it down to such a proficient science that I am able to strip them with artistic expression. Just the other day I stripped one in an attempt to emulate Van Gogh's starry nights. I was so dissapointed with my efforts that right then and there at the field I changed from a 29 year old with an emotional maturity of a 5 year old into a 29 year old with the emotional maturity of an unborn. I sell these newly sculpted gears for very reasonable prices and you guys might be able to talk the wife into letting one hang above the fireplace.

On a serious note the N9 seems to like a tighter mesh than one might think. The gear wears in and the little shavings make you worried but eventually it sheds them all clean and from there on out it runs smoothly. It also seems to have no tolerance whatsoever for any back and forth end play on the bevel gear that mates up to the crown gear and no up or down end play with the main shaft. I'm sure alot of people are using the stock retaining collar but the hyper collar is a great upgrade that is relatively inexpensive. Delay on the gyro is often recommended by all on a heli this size while still having a moderately fast tail. However, I'm still curious to see how low I can set my delay on the gyro deceleration before the gear strips. Maybe I can sculpt a few more pieces of art before I am satisfied with a setting that is optimal.

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04-10-2009 12:59 PM  9 years agoPost 30
Chuckie

rrKey Veteran

Crofton Maryland

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As far as I'm aware no heli is designed to handle up and down play in the main shaft. Every time I pick up my heli I'm checking for play in the main shaft. If the main shaft is loose not only can you damage your crown gear but the main shaft bearings will take a beating and not last long. My pre-FASST 14mz never liked a lot of bearing noise.

What gyro are you using?

Please stand by for faster service!

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04-10-2009 03:30 PM  9 years agoPost 31
Entityofme1

rrApprentice

Birmingham, AL.

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It might not be designed for it but the Trex 600N I own has had a little up and down play after some flights. Although this is not the way it should be I think it will handle just a little bit from the way the tail drive gear is mounted underneath the main gear. By all means I'm not recommending anyone let it go unattended.

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04-10-2009 04:05 PM  9 years agoPost 32
Chuckie

rrKey Veteran

Crofton Maryland

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Yea I know I own a 600N and noticed the main shaft play won't cause much gear damage due to the gear teeth angle/design. Bearings are another story. I ran my N9 with some main shaft play for a few flights and it didn't take the crown gear out. I run hyper collars in both my N9s for the reason you mention, they hold great. Also, on my crown gears there is a little play in the bevel gear. One crown gear has over 400 flights so the play is probably growing with time. I don't see a need to replace my well used grown gear. Now getting back to your art, when I start doing fast piro reversals the stock gyro delay settings may make the heli respond a little slow but they will be more helpful.

Please stand by for faster service!

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04-14-2009 10:05 PM  9 years agoPost 33
Droid

rrElite Veteran

Deep down in the Southwest- UK

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Rock what generic model are you using in the solid-g?? I'm assuming Synergy, if you owned a vibe 90 that has the weakest crowngear out there and more $$ than the synergy part. Hence i use the vibe settings in my Solid G, no crowngears in 20 gallons ....yet!!!

Quotes may have been changed for my own amusement

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04-14-2009 10:11 PM  9 years agoPost 34
Rockohaulic

rrElite Veteran

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

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if you owned a vibe 90 that has the weakest crowngear out there and more $$ than the synergy part. Hence i use the vibe settings in my Solid G
Hmmmm - that's an interesting thought............

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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HomeAircraftHelicopterSynergy R/COther › 2 teeth chewed up on crown gear!
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