[NSRCA-discussion] Help: Servo pins pulled out of connector body

Sat Mar 18 08:36:21 AKST 2006

I know when i build a prototype for a durability test we only use crimp connectors. Now for durability we only splice test wiring in the middle of a wire for hook ups. that way we do not comprosise the original wiring connector. because if we depin it and it fails was it because we ruined it depinning it or would it have failed on it's own? 

Anne et Xavier <xavier.mouraux at sympatico.ca> wrote:      Full size aircraft don't use soldering I believe. I know we don't at Bombardier. It has something to do with vibration.
  Xavier

  -----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of John Ferrell
Sent: March 18, 2006 10:23 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Help: Servo pins pulled out of connector body

  I disagree with soldering a crimp. If done properly the crimped connection ALONE is the most reliable and durable connection.

  John Ferrell    
http://DixieNC.US

    ----- Original Message ----- 
  From: Dennis Bodary 
  To: NSRCA Mailing List 
  Sent: Saturday, March 18, 2006 2:28 AM
  Subject: Re: [NSRCA-discussion] Help: Servo pins pulled out of connector body

Servo city sells the pins and the connectors for 75 cents to like 2 bucks depending on which ones you want. The crimpers will probably cost you 25 bucks. they are a w crimp. you do not want to use regular crimpers. After you crimp them you will want to solder also. use the smallest diameter solder you can find. you just need a tiny tiny amount. you won't be able to use heat shrink due to the heat shrink not fitting in the connector.

paul <paul.horan at sbcglobal.net> wrote:           Ed,
      I have not pulled the servos apart to check the gears.  The reason I think they are ok is that when the plane went in the engine was dead, the speed was fairly low, the the smaller branches of the tree furthe! r reduced the speed and finally the plane hit a fork that cleanly stripped the wings away.  The servos, ailerons, linkage all looked good.  
  Thanks,
  Paul
    ----- Original Message ----- 
  From: Ed Alt 
  To: NSRCA Mailing List 
  Sent: Monday, March 13, 2006 9:38 PM
  Subject: Re: [NSRCA-discussion] Help: Servo pins pulled out of connector body

  Paul:
  The soldering trick works fine, as long as you don't get a cold joint.  I try to avoid it only because the area near where the solder stops wicking into the wire tends to be a point of stress concentration for the wire strands, but as long as you extend the heat shrink about 1/4" past the point where the wire gets 'bendy' again, it supports it and prevents the work hardening of the wire from becoming a problem.  I might be a bit nervous about those servos though - how do the gears look?  I've had incidents where just a tiny sliver of a gear tooth was chipped away and lead to further problems.

  Ed
    ----- Original Message ---! -- 
  From: paul 
  To: NSRCA Mailing List 
  Sent: Monday, March 13, 2006 10:29 PM
  Subject: Re: [NSRCA-discussion] Help: Servo pins pulled out of connector body

  Ed,
      Sounds like I can either get the kit and crimper from Maxx or cut the connector ends off defunct servos / extentions and solder them to the existing servo wires - using heat shrink to keep any flexing away from the solder joints.  Any preference ?
  Thanks,
  Paul
    ----- Original Message ----- 
  From: Ed Alt 
  To: NSRCA Mailing List 
  Sent: Monday, March 13, 2006 9:24 PM
  Subject: Re: [NSRCA-discussion] Help: Servo pins pulled out of connector body

  Paul:
  Better off to replace the entire connector and pins.  Most likely the plastic housing was damaged from the pin pulling out.  Also, the! wire had to get strained where it is clasped by the crimp pins.  Maxx Products sells connector kits, but you need a crimper tool.  

  Ed

  ----- Original Message ----- 
    From: paul 
  To: NSRCA Mailing List 
  Sent: Monday, March 13, 2006 10:13 PM
  Subject: [NSRCA-discussion] Help: Servo pins pulled out of connector body

    I strained my Meridian through a tree, wrecked the plane but the equipment appears OK with the exception of both aileron servos.  When the wings came off the servo connector body stayed in the fuse and the servos wires and pins went with the wings.  
      My question is : can I simply re-insert the servo pins in another connector body (taken from defuct servos or extentions) ?
  Thanks,
  Paul

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