spoiler

For people that don’t know this is not how you use Calipers

  • CADmonkey@lemmy.world
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    1 year ago

    I remember when I first applied for a job in a fabrication/machine shop. One of the questions in the interview was “Do you know how to read a tape measure‽” followed by “demonstrate that you can use a tape measure” along with some other fun ones like “what is the difference between these two pieces of material” (one was aluminum, the other stainless) and other such things. I remember being surprised/disappointed that there were grown people who couldn’t read a tape measure.

    I’ve worked in machine shops and drafting offices for years now, and I’m no longer surprised by people who can’t use basic measuring tools. Still disappointed though.

    • bitsplease@lemmy.ml
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      1 year ago

      OK - now I’m curious, what were the most common mistakes people made reading a tape measurer? Because I’m having trouble working out how someone could screw that up lol

      • CADmonkey@lemmy.world
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        1 year ago

        We had a guy we called “10/16” (ten sixteenths) because he was told to grab some 5/8" (0.625" or 16mm) steel plate, but he couldn’t find any he could only find 10/16" and 12/16".

        People will count the little lines on the tape and not remember if they are 1/32, 1/16, or 1/8.

        I think metric would help this.

        • bitsplease@lemmy.ml
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          1 year ago

          Oh OK - that does make a bit more sense. Still not exactly Nobel prize material, but fucking up the fractions at least makes more sense than not knowing how to read numbers and count lines lol

          Metric would help with everything lol. I dream of the day we finally make the switch

        • instamat@lemmy.world
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          1 year ago

          Yeah, fractions are dumb. Or I’m dumb and fractions are easy, but why don’t we split the difference and switch to metric?

        • Peppycito@sh.itjust.works
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          1 year ago

          I worked with a girl who would say “4 and 3 ticks!” meaning 1/8ths. We laughed at her enough that she tried to improve and started saying “4 point 3!” that lead to a discussion about decimal inches. I really blew her mind when I showed her the scale in 12ths on carpenter squares.

        • nslatz@lemmy.world
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          1 year ago

          I worked on a site with two carpenters once, and one would measure and the other cut. One guy would call out “inch and a quarter strong” or " inch and a quarter weak" etc. Meaning 1 inch and 3/8 or one inch and 1/8. Perfect cuts every time.

          • Croquette@sh.itjust.works
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            1 year ago

            Isn’t strong or weak mean where the cut needs to be on the line? Since the blade is usually 1/8", weak means that the cut is made before the line, removing the thickness of the blade on the measurement (1 1/2" becomes 1 3/8") and strong means that the cut is made after the line, leaving the actual measurement. This is how I was thought, but I am not in the construction industry.

            • Peppycito@sh.itjust.works
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              1 year ago

              Depends on the crews tolerances? I’ve used + or - to refer to 16ths and only call out 1/8ths. 1 1/2" would be “One and four” 1 7/16ths would be “One and three plus”

              In old timey boat building they denoted feet°inches°eighths°plus so 58 5/16ths would get written as 4°10°2+

        • scarabic@lemmy.world
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          1 year ago

          Or they even say this is a sign of wear and means you should throw it out.

          And because I enjoy sharing knowledge more than boasting I know more than others: the reason it moves is to account for the thickness of the metal hook itself.

          It makes a difference if you are hooking it onto the back of something and measuring from there, OR butting it up onto something and measuring from there.

          If you want accurate and consistent readings in both of these situations, the hook has to move. It basically pivots around the true point you’re measuring from.

          • CADmonkey@lemmy.world
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            1 year ago

            Everywhere I’ve worked, you’d “burn an inch” or “burn a foot” meaning you don’t use the metal tab, you hold the 1" or 1’ mark at the start and measure from there.

    • grue@lemmy.ml
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      1 year ago

      “what is the difference between these two pieces of material” (one was aluminum, the other stainless)

      Did they expect you to identify which metals they were, or just that they were different metals?

      • CADmonkey@lemmy.world
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        1 year ago

        I was expected to know that one was stainless steel and the other was aluminum, but not the specific grades of stainless or aluminum. Stainless and aluminum can look very similar when they’re dirty, and 300 series stainless won’t stick to a magnet just like aluminum won’t stick to a magnet. But if you pick them up or even rap on them with your knuckles you can tell the difference.

    • sp00nix@lemmy.ml
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      1 year ago

      After having a customer chew us out for something that wasn’t our fault he had us follow him to another room to discuss some more work. He borrows my tape measure and tries to measure something on the wall and the tape keeps falling over and flexing. It finally hits him in the face and hands it back to me and says “I’m not familiar with this type of tool”. I think he saw our faces turn red and eyes water up as we were trying SOOO hard not to laugh.