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  • Author Author: dubbie
  • Date Created: 20 Nov 2020 2:54 PM Date Created
  • Views 4349 views
  • Likes 9 likes
  • Comments 34 comments
  • spade connections
  • crimping
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My First Ever Crimping Experience

dubbie
dubbie
20 Nov 2020

For my Sand Based Cat Detector (Cat Detector Using Sand #2 : The Implementation ) I used a lead acid battery with spade connections. I have never properly used spade connections before (I usually use crocodile clips or solder directly) so I thought this would be a good time to start as I am working my way towards an outdoor mobile robot and robust and reliable connections are essential. Not really knowing much about making spade or crimping connections I decide that the best approach would be to buy some and just try it out. I have wanted to crimp for some time so rather than find out about it I just blundered in and bought something. I do not expect to do much crimping in the future so just looked online and bought the cheapest set I could find that seemed to do what I wanted.

 

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I used deep learning to update my natural neural networks in my head, basically I just stuck some wire inside the crimpets (or connectors) and tried to make good connections with the wire using the crimping tool. Initially there was little success as the tool I obtained did not come with any instructions what-so-ever. The crimpets would not stay on the wire while I attempted to use the crimping tool and several crimpets were harmed in this process.

 

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It took me several attempts to work out that the tool I had purchased did not do any folding of the little tabs on the crimpets. Once I had worked this out and folded over the ;little tabs using some pin nosed pliers I was able to make some good crimped connections. I'm not sure if it uses cold-welding or just mechanical interference to make a good physical and electrical connection, but they seem to work, so all is good.

 

Dubbie

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Top Comments

  • shabaz
    shabaz over 4 years ago in reply to ajcc +8
    Hi Adrian, Probably everyone has their own recommendations, I've been quite impressed with the Multicomp HT-xxx range, I have several of them, they are about $25 ballpark. The HT-230 crimp tool HT-230…
  • shabaz
    shabaz over 4 years ago +7
    Hi Dubbie, I do the same as Doug, i.e. add some solder (after crimping) if the specific crimp tool isn't suitable. However, I think maybe your tool might do both the bare wire crimping and the insulation…
  • dougw
    dougw over 4 years ago +5
    There is a lot of science behind good crimp connections. I suspect they rely on the wire bring more springy than the crimp terminal, so after a crimp there is always force on the joint Whenever I don't…
  • shabaz
    shabaz over 4 years ago in reply to phoenixcomm

    DMC tool teardown here! Daniels (DMC) Pin Crimping Tool Teardown

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  • Andrew J
    Andrew J over 4 years ago in reply to Jan Cumps

    Vicious!!

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  • Jan Cumps
    Jan Cumps over 4 years ago

    image

     

    source:https://www.eevblog.com/

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  • Jan Cumps
    Jan Cumps over 4 years ago in reply to shabaz

    shabaz  wrote:

     

    Hi Dubbie,

     

    ... since the motion the two die halves take to mate, is asymmetrical I think (it's a complex motion so I'm not sure, I'm just guessing).

    ...

    The motion is  asymetrical to make the power vector as vertical as possible; to "push down" on the connector.

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  • dubbie
    dubbie over 4 years ago in reply to shabaz

    Shabaz,

     

    I think I will have to get my biggest magnifying glass out to check this out as my current eyes just don't seem to be able to see enough detail to comprehend what is happening against what should be happening. Maybe I'll video it on macro close-up and then see if I can see what I should be seeing. This is very helpful information.

     

    Dubbie

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