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01-20-2018, 08:04 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Quote:
Originally Posted by rv7charlie
Walt, that's what I do, as well, but I have the soldering skills. I've got quite a few soldered/heatshrunk joints in my project. A lot of builders don't have the skillset & tools to do soldering, and don't have the interest in learning.
Most of the solder sleeve prices I'm seeing are around $.80 each; about half the price of the crimps shown in earlier posts.
EDIT: or maybe, less
https://www.amazon.com/dp/B01ILSEDWI...a-362741562167
Charlie
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These are the ones I have used from Raychem, not sure what the amazon stuff is, these will cost you >$3 each!
http://www.te.com/usa-en/product-448859-000.html
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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01-20-2018, 08:11 AM
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Join Date: Jan 2005
Location: Indianapolis, IN (KUMP)
Posts: 1,024
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Spruce has the Raychem version for cheaper (0.79 - $1.42 depending on size):
[url]https://www.aircraftspruce.com/catalog/elpages/edmosoldersleeve.php?clickkey=57890[/url
EDIT - these are solder shield terminations, not solder splices as referred to above (see Walt's correction below)
__________________
Thomas Short
KUMP - Indianapolis, IN / KAEJ - Buena Vista, CO
RV-10 N410TS bought / flying
RV-8 wings / fuse in progress ... still
1948 Cessna 170 N3949V
Last edited by TShort : 01-20-2018 at 08:33 AM.
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01-20-2018, 08:17 AM
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Join Date: Jan 2005
Location: Victoria, Canada
Posts: 2,251
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__________________
===========
V e r n. ====
=======
RV-9A complete
Harmon Rocket complete
S-21 wings complete
Victoria, BC (Summer)
Chandler, Az (Winter)
Last edited by vlittle : 01-20-2018 at 08:21 AM.
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01-20-2018, 08:29 AM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Quote:
Originally Posted by TShort
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Those are solder shield terminations, not solder splices, not the same thing.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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01-20-2018, 08:32 AM
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Join Date: Jan 2005
Location: Indianapolis, IN (KUMP)
Posts: 1,024
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Aha - thanks Walt.
Edited the post above
__________________
Thomas Short
KUMP - Indianapolis, IN / KAEJ - Buena Vista, CO
RV-10 N410TS bought / flying
RV-8 wings / fuse in progress ... still
1948 Cessna 170 N3949V
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01-20-2018, 09:39 AM
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Join Date: Aug 2010
Location: Newport News, Va
Posts: 325
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Stein uses the terms Solder Sleeve and Solder Splice intercheangeably
Stein uses the terms Solder Sleeve and Solder Splice intercheangeably
Stein video 006 - first he strips: STRIPPING MULTI CONDUCTOR AVIATION WIRE / CABLE https://www.youtube.com/watch?v=3PuX8yui0VU
Stein video 007 - then he attaches ground wire to shield - SOLDER SLEEVE & SOLDER SPLICE on Aviation Wire: https://www.youtube.com/watch?v=uhRCUAYoSXg
TE Connectivity describes three methods of cable preparation:
4.2.1 Center Strip
4.2.2 End Strip
4.2.3 End Strip with Braid Fold Back - recommended for cables rated less than 125C
http://www.te.com/commerce/DocumentD...f%7F375094-000
Since Stein is using the End Strip method one might infer the rating of Tefzel insulation > 125C and from what I can find it is rated 150C.
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01-20-2018, 09:46 AM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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Quote:
Originally Posted by Walt
Those are solder shield terminations, not solder splices, not the same thing.
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Perhaps I'm missing something, but the only issue should be whether the diameter is too large for the application. In either case, you're soldering tin plated copper conductors to each other with a ring of low melting temp solder, and shrinking a layer of shrink wrap around the joint.
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01-20-2018, 10:08 AM
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Join Date: Jul 2005
Location: Bolingbrook, Illiniois
Posts: 254
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We are in absolute agreement...
Quote:
Originally Posted by rv7charlie
You've got far more experience than me, and better credentials, too. :-)
I agree with you; different conditions call for different techniques. If we don't understand what drove the original requirements, it's obviously safer to stick with established procedure.
But...
Many times, especially with highly structured projects, choices are made that might not be driven purely by safety, but by...well, for lack of a better term, convenience. As has been pointed out, it's a lot easier to ensure consistent results in a production environment if the tooling does it, instead of the random craftsman. For instance, some milspec/aerospace wire is surfaced with nickel, some with silver, some with tin, etc. The info I've seen (you'd probably have direct experience) says nickel surfaced wire can't be properly soldered, but it's great for crimps. Obviously, a tech who, for instance, tried to repair nickel plated wire with solder would be making a grave error. So in critical situations, the 'book' tells the tech exactly how to do every job, and he just does it, without question or variation. He doesn't even need to know why.
Now, the question is, does that apply to us? If we buy surplus milspec wire off ebay, as some of us {me} do, it might. Certainly, if we {I} don't do our homework.
On the other hand, if we know we're using the more common tin plated milpsec wire, I believe I have a bit more flexibility in the processes I choose, while still remaining safe.
Are we close to being on the same page?
Charlie
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Absolutely on the same page. With regard to the nickel, I had an experience in my early engineering days where a gold plated lead (they use nickel as the base material) was not plated thick enough with gold. The part, which saw no vibration, nicely unsoldered itself! Anyway, we are in complete agreement.
Paul
__________________
Paul
N694BP reserved
RV-6A Very Slow Build!
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01-20-2018, 01:21 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,687
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Quote:
Originally Posted by rv7charlie
Perhaps I'm missing something, but the only issue should be whether the diameter is too large for the application. In either case, you're soldering tin plated copper conductors to each other with a ring of low melting temp solder, and shrinking a layer of shrink wrap around the joint.
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Not enough solder in the ring to sufficiently wet the wires I think is the main difference. Thats why some sleeves are spec'd as shield termination and others are spec'd as splices.
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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01-27-2018, 06:48 PM
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Join Date: Oct 2005
Location: 08A
Posts: 9,500
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Allow me to speak for bare terminals and adhesive heat shrink.
Yes, it takes longer. Beyond that, there are several advantages. Every metal-to-metal crimp can be inspected visually. Open jaw plain or ratchet crimpers allow fine stoning of the jaw edges to prep a new tool.
Closed tube inline splice terminal. Good crimp, proper bellmouth:
Strain relief and vibration resistance is probably an order of magnitude beyond that offered by a PIDG's (hopefully) diamond shaped insulation crimp, and it is sealed, at least at the strain relief end.
Less bulky too.
Adhesive heat shrink can be shaped when hot. Just bend and hold a few seconds to cool. The shape is locked in.
I am not knocking PIDGs. They're fast, and mostly good enough. I will argue that the above terminations are more durable in service.
__________________
Dan Horton
RV-8 SS
Barrett IO-390
Last edited by DanH : 01-28-2018 at 06:42 AM.
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