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02-21-2006, 01:58 AM
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#1 |
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Bad-ass Super Contributer!
 
Join Date: Jan 2006
Location: Galt, CA
Age: 25
Posts: 466
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duel elevator servos
anyone know how to setup duel elevator servos on a 7CAP?
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02-21-2006, 03:42 AM
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#2 |
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Rudder Bashin'
Join Date: Jan 2006
Location: Stettler, Alberta, Can. Planet Earth
Age: 34
Posts: 372
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Re: duel elevator servos
I tried this once, found out on the futaba website it is NOT possible to do and still have your trim function for both elevators. I had the same problem with my old 6EXA, I just manually trimmed one elevator. pain in the arse, but it works.
This is one of the advantages of the 9C over the 7C. The 9Z wa better yet. the 9C if you have fast servos you will notice a bit of lag between the elevator halves, the 9Z virtually eliminates this. sorry for the bad news.
__________________
crazy is as crazy does |
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02-21-2006, 07:04 AM
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#3 |
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Extra 330s for me
Join Date: Jan 2006
Location: N.S.W. Australia
Posts: 197
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Re: duel elevator servos
Just use a matchbox it's much easier
__________________
If your not Flying an Extra your taking up too much Sky |
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02-21-2006, 07:58 AM
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#4 |
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Bad-ass Super Contributer!
Join Date: Jan 2006
Location: Black Dirt Squadron, NY
Posts: 289
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Re: duel elevator servos
You can use a "reversing "Y" harness as well. Less expensive than a matchbox:
http://www.maxxprod.com/mpi/mpi-5.html |
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02-21-2006, 08:01 AM
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#5 |
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Father of the Scale Furum
Join Date: Jan 2006
Location: Chapel Hill, TN
Age: 34
Posts: 4,577
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Re: duel elevator servos
Yeah, a reverse Y without the adjustment pot switch. Just get a regular NON adjustable reversing Y. Reason? 3 of my reverse Y's with that adjustment switch always moves one half faster than another... Good luck.
__________________
"I'll have the roast duck with the mango salsa" Kit builders check out.... http://bobflies.com/ 2.4 GHz is for your home telephone... 14MZ and 72 MHz for huckin' baby!! |
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02-21-2006, 03:33 PM
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#6 |
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CapCanuck
Join Date: Jan 2006
Location: Sudbury, Ontario,Canada
Posts: 258
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Re: duel elevator servos
In regards to servos not matching in speed, I had the same problem with my dual elv. servos using a 9CAP and channels 2 and 7. Futaba says that there is a time lag for the signal between channels and if you run digitals, this is more noticeable. The solution (if you have Hitec digitals) is to use their programmer to reverse the one servo and match them with the programmer for speed and deadband. Then use a simple Y harness without a reversing pot to make 'em go
 If you aren't using hitec digitals, then a MSA10 or matchbox (smartfly makes good ones too) are the only way to go for true precision. |
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02-21-2006, 03:49 PM
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#7 |
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Low and Fast
 Join Date: Jan 2006
Location: Wisconsin
Age: 23
Posts: 18
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Re: duel elevator servos
i think that your best bet would be to get a reverse y harness
i have one and it works just fine |
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02-21-2006, 04:55 PM
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#8 |
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Bad-ass Super Contributer!
Join Date: Jan 2006
Location: Galt, CA
Age: 25
Posts: 466
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Re: duel elevator servos
thanks for the replys, i have a revering y harnes and took the time to hook it up last night. I would get a match box but do not have the $50 to get one. and as far as the hitec programmer gos, ya that would be nice but $114 is way out of the question. i might just use the y harnes then save for the matchbox.
again thanks for the replys. |
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02-21-2006, 05:04 PM
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#9 |
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Thanks for the Support!
 
Join Date: Jan 2006
Location: USA, OH, Aurora
Age: 40
Posts: 22,071
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Re: duel elevator servos
$114 is a one time expense and well worth the money.
I can't imagine life with out one now. 
__________________
Get the most current up-to-date R/C modeling news: www.flyinggiants.com www.rcgroups.com www.crackroll.com www.rccars.com 
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02-21-2006, 05:28 PM
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#10 |
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Father of the Scale Furum
Join Date: Jan 2006
Location: Chapel Hill, TN
Age: 34
Posts: 4,577
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Re: duel elevator servos
I had...HAD a 9C and have my 68" Yak setup on 2 and 8 I believe and there are no such lag between channels or anything like that... very strange. Not heard that one before..
__________________
"I'll have the roast duck with the mango salsa" Kit builders check out.... http://bobflies.com/ 2.4 GHz is for your home telephone... 14MZ and 72 MHz for huckin' baby!! |
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