How to set up pull-pull cables

[Keith Hoard]

Keith L. Hoard

Cordova, TN

khoard at midsouth.rr.com

 

 

 

  _____  

From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Rcmaster199 at aol.com
Sent: Friday, March 04, 2005 8:44 AM
To: discussion at nsrca.org
Subject: Re: How to set up pull-pull cables

 

Eye Bolts are my preferred method. I stay away from the Dubro threaded
couplers since the sharp edges of the attaching hole have ripped through
steel on one of my models.

 

I still have a quantity of K-Kord, teflon coated braided kevlar for sale.

 

MattK

 

In a message dated 3/4/2005 8:28:43 AM Eastern Standard Time,
ronlock at comcast.net writes:

The 4-40 brass connector Rick mentions works nicely and looks slick.

If you don't have the special brass connector,  4-40 eye bolts from Sullivan

will do nicely.

 

Ron Lockhart

-------------- Original message -------------- 

> Good morning, John! 
> 
> Let's see... pull-pull. The method below was taught to me by a great
pattern 
> flier and has worked for all my planes since. I'm sure someone else will 
> post a great method for doing this with plastic coated steel fishing
leader, 
> but I've been using vinyl located braided Kevlar cord and never had a 
> problem. 
> 
> As always, the rudder control arms should terminate on the hinge line. The

> connections on the ends of the arm should be the diameter of the pull pull

> wheel - or arm- you use. 
> 
> I use a single piece of .038 kevcord with ends knotted through 4-40 brass 
> connectors (both from Aerospace Composite Products - ACP). The cable goes 
> from one connector into the fuse, to the pul- pull wheel on the servo -
with 
> a turn around the set screw on the wheel, and back down, out the fuse and
to 
> the other connector. 
> Photo available of the servo end (when using a servo arm instead of a
wheel) 
> is at 
>
http://www.angelfire.com/nj3/rixplanes/images/Elev_Rudder%20servo%20mounts.j

> pg 
> 
> Hope this helps. 
> 
> Rick 

 

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