Mailing List lml@lancaironline.net Message #50841
From: Bill Wade <super_chipmunk@roadrunner.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Cable Swage Tool
Date: Thu, 26 Mar 2009 20:16:10 -0400
To: <lml@lancaironline.net>
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  The pictures are of a tester that I made. As you can see it's nothing fancy, just stuff I had on hand. It was made to test a specific cable to manufacturer's specs so some modifications would be necessary for say a rudder cable. The upright channel is ground to a knife edge (#4) and a corresponding slot was cut into the angle iron cross beam using a file- the slot is centered on the beam so the dead weight is balanced. The cable end being tested passes through a slot cut into the cross beam and a cross bolt passes through the eye so it's free to pivot. That bolt fits into a hole drilled in the cross beam. It can be seen in #4. The other end is attached to the turnbuckle as shown (#3), again allowing the connection to pivot. The stress is applied by attaching appropriate weights at the correct distances- the weight shown is a lead ingot suspended with safety wire and duct tape, but I also used a bag of lead shot.
 
  AC43.13-1B has tables with proof test values for different cables on page 7-34.  -Bill Wade
----- Original Message -----
Sent: Wednesday, March 25, 2009 8:15 AM
Subject: [LML] Re: Cable Swage Tool

Building ultralights and experimentals I’ve used the $18 variety for over 25 ears and hundreds of cable connections. Several of the cables were tested to destruction and never once did a nicopress fail. There are no structurally significant differences from the swage produced by the NTS tool and that made by the $18 version if done properly. Don’t forget to gauge you swage.

 

Rick (RV lurker)

 

-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net]On Behalf Of Craig Berland
Sent: Monday, March 23, 2009 12:59 PM
To: lml@lancaironline.net
Subject: [LML] Cable Swage Tool

 

Bryan,

The only acceptable cable swage tool (nicopress) I have found is made by National Telephone Supply Co.  We manufacture parts for Boeing and used an “off brand” to swage sleeves on non-critical parts until we found the crimps were not holding.  Now we use nothing but National Telephone.  The price is high, but a rudder cable coming loose is much worse.  The “off brand stuff” was over $150 as I remember.  At $18…. I  would simply never go there.

Craig Berland

 

Does anybody have a good rudder cable swage tool I can borrow to do my rudder cables? 

I was going to buy the hand version from spruce for $18 but I would rather use something better if anybody has one to loan out. 

Thanks Bryan

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