X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 15 Apr 2008 13:19:10 -0400 Message-ID: X-Original-Return-Path: <5zq@cox.net> Received: from eastrmmtao105.cox.net ([68.230.240.47] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTP id 2848553 for lml@lancaironline.net; Tue, 15 Apr 2008 08:22:07 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.240.47; envelope-from=5zq@cox.net Received: from eastrmimpo02.cox.net ([68.1.16.120]) by eastrmmtao105.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080415122118.YERG11989.eastrmmtao105.cox.net@eastrmimpo02.cox.net> for ; Tue, 15 Apr 2008 08:21:18 -0400 Received: from bh1 ([72.209.225.157]) by eastrmimpo02.cox.net with bizsmtp id DoMS1Z00J3QP3uo02oMSNH; Tue, 15 Apr 2008 08:21:26 -0400 X-Original-Message-ID: <003301c89ef3$7829dc70$6501a8c0@bh1> From: "Bill & Sue" <5zq@cox.net> X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] MAC servo wire connections X-Original-Date: Tue, 15 Apr 2008 08:23:10 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0030_01C89ED1.F0F216D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0030_01C89ED1.F0F216D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Rob, Give "Deutch" (sp) connectors a try. They're pretty small and waterproof = to boot. You can get them from Aerocrafters. They come in everything = from 2 conductor up to about 8. If you decide to use Brent's approach, = there are some really neat little mil-spec connectors with solder and = heat shrink built in that you simply stick both wires into, hit it with = your heat gun and it solders and heat shrinks in one operation. I've = used these on the little MAC wires. Bill Harrelson N5ZQ 320 1,450 hrs N6ZQ IV under construction ----- Original Message -----=20 From: rwolf99@aol.com=20 To: lml@lancaironline.net=20 Sent: Monday, April 14, 2008 11:51 PM Subject: [LML] MAC servo wire connections What have y'all successfully used to connect MAC (sorry, Ray Allen) = servo components? I'm talking about connecting those little jewels with = the 26 AWG wires sticking out of them to the 5-conductor wires that they = also provide. Them little wires are really tiny! I have a flap position indicator, two trim systems, relays ... a total = of at least seven of these thingies that each need to be connected to = the 5-conductor wire. And I'll be damned if I can connect those little = beasties together. I've tried Molex micro-fit connectors. I can get a = successful crimp on the pins but I can't get the pins into the sockets = without snapping the wires. I can successfully solder a 26 AWG wire to = a 20 AWG machined crimp pin, but it's kinda swimming around in there. In my professional life (rocket and aircraft engineer) we don't allow = crimped connections smaller than 22 AWG since they are too fragile. Now = I have first-hand experience telling me the same thing. I'd like to use a soldered termination to a connector. Right now I'm = trying Bob Nuckolls technique of cutting down the backshell from a = standard Radio Shack DB-9 D-subminiature connector. I suspect that will = work, but I'm wondering what the rest of you have used. And that's = ignoring the issue of hacking up a "top quality Radio Shack part". = (Although in their defense, can the Shack's D-sub connectors be much = different than anyone else's?) And I definitely know Brent Regan's approach -- no connectors if at = all possible. While I don't disagree with him, I can't even solder two = 26 AWG wires together successfully! And I've got to do this at least 40 = times! How hard is this supposed to be, anyway? - Rob Wolf -------------------------------------------------------------------------= ----- Get the MapQuest Toolbar, Maps, Traffic, Directions & More! ------=_NextPart_000_0030_01C89ED1.F0F216D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Rob,
 
Give "Deutch" (sp) connectors a try. = They're pretty=20 small and waterproof to boot. You can get them from Aerocrafters. They = come in=20 everything from 2 conductor up to about 8. If you decide to use Brent's=20 approach, there are some really neat little mil-spec connectors with = solder and=20 heat shrink built in that you simply stick both wires into, hit it with = your=20 heat gun and it solders and heat shrinks in one operation. I've used = these on=20 the little MAC wires.
 
Bill Harrelson
N5ZQ 320 1,450 hrs
N6ZQ  IV under = construction
----- Original Message -----
From:=20 rwolf99@aol.com=20
Sent: Monday, April 14, 2008 = 11:51=20 PM
Subject: [LML] MAC servo wire=20 connections

What have y'all successfully used to connect MAC = (sorry, Ray=20 Allen) servo components?  I'm talking about connecting those = little=20 jewels with the 26 AWG wires sticking out of them to the 5-conductor = wires=20 that they also provide.  Them little wires are really = tiny!

I have=20 a flap position indicator, two trim systems, relays ... a total of at = least=20 seven of these thingies that each need to be connected to the = 5-conductor=20 wire.  And I'll be damned if I can connect those little beasties=20 together.  I've tried Molex micro-fit connectors.  I can get = a=20 successful crimp on the pins but I can't get the pins into the sockets = without=20 snapping the wires.  I can successfully solder a 26 AWG wire to a = 20 AWG=20 machined crimp pin, but it's kinda swimming around in there.

In = my=20 professional life (rocket and aircraft engineer) we don't allow = crimped=20 connections smaller than 22 AWG since they are too fragile.  Now = I have=20 first-hand experience telling me the same thing.

I'd like to = use a=20 soldered termination to a connector.  Right now I'm trying Bob = Nuckolls=20 technique of cutting down the backshell from a standard Radio Shack = DB-9=20 D-subminiature connector.  I suspect that will work, but I'm = wondering=20 what the rest of you have used.  And that's ignoring the issue of = hacking=20 up a "top quality Radio Shack part".  (Although in their defense, = can the=20 Shack's D-sub connectors be much different than anyone = else's?)

And I=20 definitely know Brent Regan's approach -- no connectors if at all=20 possible.  While I don't disagree with him, I can't even solder = two 26=20 AWG wires together successfully!  And I've got to do this at = least 40=20 times!

How hard is this supposed to be, anyway?

- Rob = Wolf
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