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Bag of Crimps Bargain

shabaz

I get through a lot of crimp sockets (for 0.1" header pins), and it was getting expensive just buying a few hundred at a time. So, I decided to get a lot more, since that was cheaper, and I was anticipating price rises.

Good old CPC put them in a massive bag : ) I was kind of hoping it would have been on a roll : )

Anyway, at the price, I'm not complaining (they are 1 pence each in bulk, and they are of very good quality, and slightly gold plated). I get a perfect 100% repeatable crimp with AMP 90202-2 (frequently available on ebay for $20-$30 or so - I got mine for £15).

Photo next to a vintage microcontroller (68HC705) for comparison.

image

Parents

  • Oh! When I worked at DAF Trucks in the early days, we had gigantic spools of these. My hands still hurt from crimping all wires for 40+ pin connectors, in the proto department.

    The red and black round ones in particular were a killer:
    image

  • in reply to Jan Cumps

    Nice! Must have been fun to have prototype trucks (or parts of trucks!) for the work lab. Those round connectors also look closely like military connectors (except they are metal obviously). I have no idea how they did it but they were hand assembled millimetre perfect every time, despite the large amount of wires. Probably some similar requirements to trucks, like vibration handling etc.

  • in reply to shabaz

    the requirements are similar (they also make army vehicles). And when I worked there (87-96), they were hand assembled for production too.

    Like many of these repetitive production tasks, the workspace for the assembler would have a gizmo to help them do the job. In this case, a lifesize board with all the locations where the connectors had to sit, and a stud on every position where the cable had to bend 90deg.

    Usually, these resources needed a starting period. In that period, they would spend several times the time needed by an experienced person.  And the cable harnesses they built during that initial learning would be considered as loss. 

    Because these harnesses were thick - and contained power cables too - they were not very flexible. A mistake of a few centimeters in bend or connector position, would render it defunkt.

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  • in reply to shabaz

    the requirements are similar (they also make army vehicles). And when I worked there (87-96), they were hand assembled for production too.

    Like many of these repetitive production tasks, the workspace for the assembler would have a gizmo to help them do the job. In this case, a lifesize board with all the locations where the connectors had to sit, and a stud on every position where the cable had to bend 90deg.

    Usually, these resources needed a starting period. In that period, they would spend several times the time needed by an experienced person.  And the cable harnesses they built during that initial learning would be considered as loss. 

    Because these harnesses were thick - and contained power cables too - they were not very flexible. A mistake of a few centimeters in bend or connector position, would render it defunkt.

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