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On Saturday, 6 June 2020 04:06:54 BST Dale wrote: |
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> We have reds, purples, greens and all sort of color codes for hard |
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> drives, maybe they need to color code their screws as well. :/ |
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> |
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> Now to go find a grab bag or something. This sucks. |
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Yes, getting the thread wrong and damaging the female thread in the enclosure, |
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while thinking this /almost/ fits, is not good for your nerves. There are |
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thread gauges which you can match the pitch of a screw/bolt and help determine |
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the thread specification, but they are typically used for larger screws/holes: |
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https://en.wikipedia.org/wiki/Thread_pitch_gauge |
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A way to determine a *potential* match between screw and hole, is to count the |
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turns per unit of length and of course the diameter of the hole. Use a |
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magnifying glass and measure how many turns you can see inside the whole, |
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while holding a piece of thin wire in it. You need only dip the wire up to |
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the first 3 threads, but if you can see further in, even better. Then offer |
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*exactly* the same length of wire against your screws and see which of these |
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matches. |
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Then use a reference table to find out from your thread pitch and diameter a |
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likely specification for your screws; e.g. |
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http://theoreticalmachinist.com/Threads_UnifiedImperial.aspx |
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P.S. if you have no magnifying glass you can use binoculars or a scope, |
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looking from the far end, or the camera of a smart phone, or an SLR. |
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> P. S. It seems those older not working enclosures may have caused issues |
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> with my drive. I'm having to dd the first one, redo the partitions and |
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> still having issues getting it to work. May be a doorstop when this is |
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> over. |
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You're not saying what problems these are, but smartctl should report anything |
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amiss with the drive internals. Otherwise, check power supply and loose |
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connectors. |