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DIY Electronics: How to Cut the Leads on Components

Discussion in 'DIY Audio Forum' started by amirm, Dec 27, 2017.

  1. amirm

    amirm Founder/Admin CFO (Chief Fun Officer) Staff Member

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    When you assemble "through hole" components, you push the leads of components through the PCB. The leads can be as long as 1 inch so they need to be cut off. I once sat there and cut them off from hundreds of boards. Man that was tiring.

    [​IMG]

    Here is how it gets done in China:



    Holy cow! He is one slip away from losing his fingers or even whole hand.
     
  2. Wombat

    Wombat Senior Member

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    Sadly, working conditions are often ignored in 'off-shoring' of jobs in the pursuit of profits. Company shareholders can make things better but are generally diffident.
     
  3. amirm

    amirm Founder/Admin CFO (Chief Fun Officer) Staff Member

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    Definitely. Even in Japan the standards are lower than US. I remember going to visit a manufacturing facility when I worked for Sony that handled Magnesium (specialized work). I took my mechanical engineer with me who use to work for Apple. When we got to this (small) factory in a remote area, my mechanical engineer was very surprised by the lack of safety standards around the multi-ton presses.
     
  4. Wombat

    Wombat Senior Member

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    De-regulation forces are at work in the west to lower(and have lowered) hard won standards using 'jobs' as justification. A race to third world status?
     
  5. Cosmik

    Cosmik Major Contributor

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    I once read somewhere that in the British military, technicians are taught to re-solder over the ends of snipped leads to prevent oxidation getting into the joints. Once I heard that, I always found myself compelled to do the same.
     
  6. Don Hills

    Don Hills Senior Member

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    That may possibly have some real world benefit, if trimming the lead applies enough force to form a tiny gap on the surface where the lead and the solder meet. And then only if the joint has been poorly made and the solder doesn't form a meniscus.
    But it ignores the flux and other contaminants that remain around the lead in the through-board hole after cleaning.
     
  7. iridium

    iridium Senior Member

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    NATURAL SELECTION.

    iridium.
     
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