Advice re crimps and heat shrink please



Badly designed cable clamps on the connectors then and or rough handling.
Whatever the pros and cons, one thing is certain. A soldered joint is far more likely to fracture than a crimped one. A properly made crimp should hardly weaken the cable at all.
--
*Xerox and Wurlitzer will merge to market reproductive organs.

Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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You don't say ...
vibration and CH fitters ...
--
geoff

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And poorly specified cable and or connectors. Not that you're at all worried. ;-)
--
* I like you. You remind me of when I was young and stupid

Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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Not so.
E.g. last week, I sent out a Suprima pcb, and got a phone call saying it didn't work, the board keeps going into lockout just like the other one.
I sent another board out and got the first one I sent back - no problem with it
... "Ah yes, I found there was a break in the HT lead"
This wasn't an isolated example
--
geoff

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On Wed, 29 Sep 2004 09:55:54 +0100, "Dave Plowman (News)"

It would also be quite hard to get crimp joint small enough to fit 468 under a pentium chip!
Phil The uk.d-i-y FAQ is at http://www.diyfaq.org.uk / Remove NOSPAM from address to email me
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But everyone has already said often enough to use the correct tool. Because of economy of scale, they are much cheaper than other more specialised crimping tools. Somewhere between 10 and 20 quid buys a good one.
--
*If at first you don't succeed, avoid skydiving.*

Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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wrote:

True. You can use an encapsulating oversleeve if that is an expected environment.

Of course.

The point being? That gibbons can do better with a cruddy soldering iron?
Phil The uk.d-i-y FAQ is at http://www.diyfaq.org.uk / Remove NOSPAM from address to email me
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Phil Addison wrote:

No, that a competent D-I-Y er can.
Gibbons fuck up everything.

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If you gave an infinite number of monkeys an infinite number of soldering irons they would eventually make an IBM PC.
So THAT'S how they do it ;-)
--
Richard Porter
Mail to username ricp at domain minijem.plus.com
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Richard Porter wrote:

Odd. I rather thought that's where it all came from in the first place...
Actually, they would have evolved into IMM before they did that.

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And so is a solder joint.

You've not seen my soldering. It's pretty hard to make a mess of a crimp joint as long as you use the right tool, right crimp etc. I'ts much easier for me to make a dodgy soldered joint.
--
Chris French, Leeds

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chris French wrote:

*shrug*. I do both. Crimps are bulkier and you have to have exactly the right crimp,and the right tool. Other wise they fall to pieces.
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wrote:

You are joking I trust? You and I can make perfect joints, but you should see the attempts of a novice. It takes practice and dedication. It is the lack of the latter that is the problem. Given a crimp and decent ratchet crimper all you need to do is trim the wire to the correct length and make sure it goes fully into the crimp .
Phil The uk.d-i-y FAQ is at http://www.diyfaq.org.uk / Remove NOSPAM from address to email me
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Phil Addison wrote:

Even that is too advanced for the average simian who does electrical installations IMHO :-)

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wrote:

We are talking about diyers competent enough to get here, not apes or monkeys.
Phil The uk.d-i-y FAQ is at http://www.diyfaq.org.uk / Remove NOSPAM from address to email me
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Or the invertebrates who try and repair pcbs with plumbers solder !
--
geoff

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wrote:

Would that be why soldering is banned for Milspec, Naval and aerospace but crimps approved?
In terms of reliability it really is no contest - and solder isn't the winner - no matter how highly trained the gibbon.
--
Peter Parry.
http://www.wpp.ltd.uk/
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On Tue, 28 Sep 2004 14:08:15 +0100, Mike Clarke

Hi,
If you partly cover the intake on a hairdryer it should be hot enough to do the heatshrink - or possibly even catch fire!
cheers, Pete.
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"Pete C" wrote | If you partly cover the intake on a hairdryer it should be hot | enough to do the heatshrink - or possibly even catch fire!
I noticed a nice violet glow from something inside the vacuum cleaner this morning.
Owain
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Thanks everyone for the helpful comments, I feel more confident about tackling my first job with crimp joints now.
I'll stick to the idea of crimps rather than solder, I don't think my soldering technique for smallish electronic stuff would scale up to 2.5 & 4 mm^2 cable very well.
--
Mike Clarke

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