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HomeAircraftHelicopterMain Discussion › Shortening servo leads!! Yes? No?
06-25-2014 02:30 AM  3 years agoPost 1
Jayl008

rrNovice

Kingsburg, CA USA

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I'm wanting to shorten servo leads. Any idea what the best way is? New plugs? Or cut and solder inside servo? Or not at all? Help me out.

...get that @&#$ upside down...

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06-25-2014 03:24 AM  3 years agoPost 2
Cowjock

rrVeteran

Pa.

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1:if you're any good at soldering you can cut and resolder to the inside of the servo.

2:Cut off about 2" off with the plug end still attached, then shorten the end that is still attached to the servo to desired length. Then resolder the plug end to the servo end, don't forget the shrink tubing to cover the solder joints.

3:If you have the crimp ends available, cut the servo wire to desired length,crimp new ends, snap new ends in plug.

I've done all of them and like #3 the best. #2 I use if I don't have new crimp ends, and #1 only did once or twice, usually a pain in the .....

No adverse effects will happen from shortening the servo wires.

Good luck

Damn that ground is hard! When's the right time to get out of this money sucking hobby?

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06-25-2014 03:37 AM  3 years agoPost 3
dkshema

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Cedar Rapids, IA

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Soldering is usually a bad idea since the PVC insulation on the wires shipped with servos melts at a relatively low temperature and shrinks way back.

Cutting out the middle and splicing, then covering with heat shrink would be my last resort.

If you insist on shortening them, buy male pins and female sockets, the connector male/female plastic bits, a decent crimping tool, and a good pair of wire strippers that won't nick the wire.

There is little to be gained by shortening the wires.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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06-25-2014 04:47 AM  3 years agoPost 4
rexxigpilot

rrProfessor

Florida

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Makes a slightly neater installation job. I really don't care how it looks under the canopy though. So the risk of a bad solder joint or bad crimp is not worth it to me. The other factor to consider before you cut the wires is whether you ever plan to use the servos in another heli where the leads may then be too short.

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06-25-2014 07:10 AM  3 years agoPost 5
Poopfong

rrNovice

Fort Walton Beach, FL USA

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Jayl,
I got this for Christmas a few years ago. I have shortened many installed servos in my large scale gasser planes and helos, built dozens of extensions, and made several quick disconnects (BEC, RCVR batt). Requires some practice to hone your skills, watch the video. Results are like factory, this is how I do it. Pricey, but why make an elective mod a causal factor in a mishap. You would need at a minimum the pins, connector ends, and the blue crimper. R,-Poop

http://www.hansenhobbies.com/produc...kits/ck_drcck2/

P.S. - Pins and Connectors should be from the same manufacturer (whether JR/Futaba/or universal in shape) in order for the pins to seat absolutely perfect. Mixing manufacturers or just using what is laying around or transplanted could cause fit problems.

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06-25-2014 10:34 AM  3 years agoPost 6
wrongler

rrProfessor

Brewerton, New York

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If you shorten them and want to use the servos on another heli build, they many not be the right length.

Bill Whittaker

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06-25-2014 12:18 PM  3 years agoPost 7
sharam

rrElite Veteran

Northern California - Fly at Morgan Hill Field

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Short answer, No! Nothing to be gained.

Verba volant, scripta manet

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06-25-2014 12:30 PM  3 years agoPost 8
Tyler

rrElite Veteran

Chicagoland area

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lot of work for under hood eye candy.

Enjoy things that money can buy IF you don't lose the things money can't buy.

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06-25-2014 12:31 PM  3 years agoPost 9
kris L

rrApprentice

NY

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Short answer, No! Nothing to be gained.
I agree, you could be opening yourself up for problems. Not worth doing. - Kris

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06-25-2014 01:06 PM  3 years agoPost 10
Four Stroker

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Atlanta

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A good pair of crimpers is $400. A $40 dollar crimper gives you a $40 crimp. I won't fly with $40 crimps or aftermarket extensions made in someone's sweatshop with $40 crimpers.

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06-25-2014 01:16 PM  3 years agoPost 11
rudyy

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E. Amherst, NY

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Use servo wire sleeve instead and you can fold the wire and put it into the sleeve.

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06-25-2014 01:49 PM  3 years agoPost 12
Ace Dude

rrProfessor

USA

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I've heard of folks shortening their servo wires, but I've never done it and probably never would.

  

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06-25-2014 02:01 PM  3 years agoPost 13
f14tomcatfreak

rrVeteran

rochester,ny us

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I would suggest leaving them their original length... Down the road you may want to run them same servos In another heli and find that the leads are too short... Find means of running them neatly and def use servo lead sleeving to protect against chaffing. Also that's one less thing you need to worry about going wrong!

shut up and fly

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06-25-2014 02:17 PM  3 years agoPost 14
Heli_Splatter

rrElite Veteran

USA

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The day I spend $400 on a crimping tool will be NEVER!

I have been making custom wiring harnesses for years without a single failure EVER! I do everything carefully and start over if I am not happy with the connection.

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06-25-2014 02:18 PM  3 years agoPost 15
Simmer

rrElite Veteran

Massachusetts

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Buy a bigger heli and the wires wont be short.

sorry could not resist

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06-25-2014 02:49 PM  3 years agoPost 16
icanfly

rrElite Veteran

ontario

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I'm going to assume you know what your doing with a soldering tool. I've shortened many a micro servo lead to tidy up a small heli. I occasionally solder to the inside but mostly put a new connector on.

What I do to make sure a connection is A100% is to tin the pins where the copper wire will be seated, a tiny amount. I don't strip any wire cover but solder to the exposed core and the plastic will shrink away from the wire tip now ready to solder to the pin. Takes a bit of practice to stop when the plastic has moved back but not so far that the crimped blades on the pin won't catch it. I then solder the wire to the pin and proceed to finish crimping them. You have to work quickly when soldering only to make a solid bond between the wire and the pin. Use as little solder as necessary because the pins now have to fit in the connector case. Using a magnifying lens work lamp helps a lot. Solder on a wood block.

When I know the servos have found a home permanently I don't loose sleep over shortening wires, in fact the opposite, I hate excess wire. On a bigger birdy it isn't that important when you can zip, velcro, shrink, comp sleeve, tape, etc the excess but if the servo is going to stay on the heli forever I would shorten them eventually. Flying is more important ateotd.

If your going to solder in the case your warranty is likely void, maybe the same with the new connector on a shortened wire (less this one).

I had to re-solder new wires into my shuttle's old analogue JR's (no longer used on the heli) not entirely a fun thing to do as there are other circuit wires that made it difficult. I also inspect the solder joints with a high x's eye piece magnifying lens, jewelers loupe, to double check if solder has not crept on to other joints. I've fixed a few micro circuits, a gyro, servos, charger, radio, guitar amp, lots of things no trouble JUST DO IT.

When soldering in the servo remove all the old solder from the c-board before re-attaching the shorty servo wire, keep things clean and tidy and you'll go far, lol.

no biggy

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06-25-2014 03:11 PM  3 years agoPost 17
Jayl008

rrNovice

Kingsburg, CA USA

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I appreciate all the info guys. Simmer, that was funny. I have a big heli and it has wire extensions, which i also hate haha. Im going with my gut and seeing if I can come up with an alternative to cutting or soldering. That still looks nice. I know some say "as long as it works, who cares"... But Im a little OCD haha so cleanliness is my thing. Again Im going to experiment with other not so important servos and planes. See what I can learn with soldering inside the servo and putting new plugs on. Thankyou guys again so much. Happy flying...

...get that @&#$ upside down...

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06-25-2014 03:15 PM  3 years agoPost 18
Pistol Pete

rrProfessor

Seffner, FL

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Have you considered "coiling" the wire instead?

~~Enjoying the hobby one flight at a time~~

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06-25-2014 03:19 PM  3 years agoPost 19
Jayl008

rrNovice

Kingsburg, CA USA

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I've seen it done. Not sure how they do it.

...get that @&#$ upside down...

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06-25-2014 03:24 PM  3 years agoPost 20
Pistol Pete

rrProfessor

Seffner, FL

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Use a small cylindrical object such as a small screwdriver.

Place at base of wire where it enter the case.

Wrap the wire around screwdriver keeping it flat as you wrap it around and voila!

Size of screwdriver determines coil size/diameter.

EDited
You do not need to use heat.

~~Enjoying the hobby one flight at a time~~

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HomeAircraftHelicopterMain Discussion › Shortening servo leads!! Yes? No?
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