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Preciva Crimper Plier Set - Materials & Tools. - More Practical Help - Your Model Railway Club
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 Posted: Wed Jan 5th, 2022 11:14 pm
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Barchester
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I know it's frowned upon by some but I use a fair number of screw block connectors for the wiring on my layout, sometimes connecting in two and three separate (stranded) wires to one terminal with the inherent problems of actually catching all wires solidly as you tighten up the screws.
Decided to buy one of THESE bits of kit to try out  and so far I'm very impressed !

A few pictures to save a thousand words














And some experimentation














I wasn't sure about connecting three into one but as you can see it worked, and how solid is the connection ? Well I've done my darndest to pull any of the wires out of its ferule and I'm beggered if I can ! The metal end of the ferule is robust and clamps solidly into the screw terminal giving a good solid connection

If like me you don't enjoy crawling about under layouts soldering and resort to choc block connectors I can definitely recommend one of these. The Crimper seams a good quality tool at a reasonable price ( you CAN pay a lot more for one if you wish) and comes with a good selection of ferules in the pack.

Cost for me with free postage was a fraction under £27

Hope this is of some use

(Apologies for fuzzy photos)

Cheers

Matt





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 Posted: Thu Jan 6th, 2022 11:38 am
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Petermac
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This looks like it saves having to solder the ends of wires before fitting a choc. block Matt .......... :hmm

A nice bit of kit and much faster (and safer) than soldering I'd guess.....   Is there any risk of screwing through the crimp with the choc. block screw or is it pretty tough ?



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 Posted: Thu Jan 6th, 2022 01:38 pm
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Barchester
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Peter Ive 'crushed' both the single wired ferule and the triple wired ferule with pliers to try and break them. They flattened out but didnt split. I then just tried to over tighten the triple wired one in a block. The screw rounded off but I was able to back it off and check the ferule. It had dented it but no other damage. Then did the same for the single wire (thinnest ferule in the box) and again although this one  crushed flat it didnt split at all and in both cases I was still unable to pull out any of the wires from the ferules by hand. I also tried pulling both from the choc block when tightened and couldn't budge them. I know from experience it's a task to get three separate wires caught solidly under the screw without missing half the wire strands or one of the wires pulling loose, but this method seams to give a tightly packed bunch of wires held firmly in the crimped ferule that clamps solidly in the choc block.  
 Ill try and take a couple of closeups to show them after being crushed by pliers and after being screwed in tight.

Cheers

Matt



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 Posted: Thu Jan 6th, 2022 02:07 pm
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Barchester
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Ok sorry not the clearest but hopefully you can see the results
Single wire crushed with pliers




Single wire after being screwed in choc block ( different ferule)




Triple wire ditto ( probably clearer to see)




And after being in choc block ( you can see the screw indent near to the blue plastic)




As I said I still cant pull the wires from the ferules and couldn't pull any of the wires or the whole thing out of the choc block so seams a very solid connection. 

Think I will be using a fair few of these going forward  :thumbs

Cheers

Matt

( Now I better get that POM changed !. . . Ok cuppa first  :cool wink)



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 Posted: Thu Jan 6th, 2022 06:32 pm
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John Dew
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That looks very useful Matt......thanks for posting.......looks like a happy new year pressie for me!



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 Posted: Thu Jan 6th, 2022 09:37 pm
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Petermac
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Rather typically - here from Amazon France €33.88 and 10 cents dearer at Amazon Germany ...............that's a tad over £28 at current exchange rates................

I suppose not too bad really - free delivery using Amazon Prime but postage would have to be added from either UK or Germany.

I just wish you'd posted this 500 choc blocks ago Matt although I might still find a use for a set ....................... :cry:



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 Posted: Thu Jan 6th, 2022 10:42 pm
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Barchester
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I've a few choc blocks too Peter, nowhere near 500 tho  :shock:.  My intention going forward is to re do any connections in an area I'm working on. . . As it happens I've been re doing some wiring and still more to do so I'm glad I found these now  :cheers
Matt



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 Posted: Fri Jan 7th, 2022 04:11 am
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peterm
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:oops: Sorry, I should have said something sooner. I've been using these for two or three years now and they do make things very easy for connecting wires via choc blocks. Cheap as chips for the crimper from China and assorted sizes of ferrules from wherever you choose to get them from. You can get double ferrules too, if you want; depends on the size of wires and choc blocks you're using.



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Cheers Pete.
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 Posted: Fri Jan 7th, 2022 12:37 pm
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Spurno
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Looks useful Matt but not for me.Some of those connectors looked just the same as if you'd soldered them.



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 Posted: Fri Jan 7th, 2022 12:47 pm
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Petermac
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Spurno wrote: Looks useful Matt but not for me.Some of those connectors looked just the same as if you'd soldered them.


Yes indeed Alan but they can be done in a fraction of the time whilst lying on your back under the baseboards ....... 



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 Posted: Fri Jan 7th, 2022 02:52 pm
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col.stephens
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What a useful tool.  I also favour using choc blocks.  I think that I might be in the market for one of those.Thanks for posting Matt.

Terry

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 Posted: Fri Jan 7th, 2022 03:04 pm
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Petermac
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According to Amazon, mine should arrive tomorrow ! :thumbs



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 Posted: Fri Jan 7th, 2022 03:06 pm
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col.stephens
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Ordered!  Thanks for the link Matt.  Much obliged.
Terry

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 Posted: Fri Jan 7th, 2022 03:17 pm
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Petermac
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peterm wrote: :oops: Sorry, I should have said something sooner. I've been using these for two or three years now and they do make things very easy for connecting wires via choc blocks. Cheap as chips for the crimper from China and assorted sizes of ferrules from wherever you choose to get them from. You can get double ferrules too, if you want; depends on the size of wires and choc blocks you're using.


I'm hoping they're as good as you guys say because I have several "delicate" choc block connections under my baseboards.  This gadget should set my mind at ease whilst saving having to tin the wires before fitting to the blocks - almost impossible to do whilst lying under the boards.......................... :hmm   I might be over strong but I've often found that the choc block screws easily cut into unsoldered wires and any future "wriggling" breaks the few remaining strands.



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 Posted: Sat Jan 8th, 2022 12:07 am
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Barchester
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Peter, your mention of 'Delicate wires' led me to try something else earlier tonight.The single (multi strand ) wire when crimped into the ferule seams much more robust on being clamped in the screw block. But what I did was to try putting the  smaller ferule into a bigger one ( I think I went up three sizes ?) And then crimp them together and the result ? A bigger, fatter, even more robust  end on the wire to screw into the terminal  :thumbs
Cheers

Matt



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 Posted: Sat Jan 8th, 2022 09:41 am
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Petermac
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That's  an interesting option Matt.  Most of mine will be single, or at most, double wires into 5 or 6 amp choc blocks.

Hopefully, Mme La Factrice (Post lady) will deliver mine today so I can have a play over the weekend.



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