The wonderful world of gauge blocks

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The wonderful world of gauge blocks

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  • #434935
    Keith Long
    Participant
      @keithlong89920

      Henry, have a look at Rotagrip's website. I've bought individual blocks from them in the relatively recent past and they weren't too expensive considering what they are.

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      #434939
      Henry Brown
      Participant
        @henrybrown95529
        Posted by Keith Long on 27/10/2019 16:50:31:

        Henry, have a look at Rotagrip's website. I've bought individual blocks from them in the relatively recent past and they weren't too expensive considering what they are.

        Thank you Keith, I'll check them out after dinner…

        #434941
        Mark Rand
        Participant
          @markrand96270

          Cromwell.co.uk are very reasonably priced for individual blocks. A thing I discovered to my chagrin after ordering a couple from Cutwell and finding that they are on 10 days delivery after they'd been paid. angry

           

          Edited By Mark Rand on 27/10/2019 17:22:48

          #435008
          Henry Brown
          Participant
            @henrybrown95529
            Posted by Mark Rand on 27/10/2019 17:21:57:

            Cromwell.co.uk are very reasonably priced for individual blocks. A thing I discovered to my chagrin after ordering a couple from Cutwell and finding that they are on 10 days delivery after they'd been paid. angry

            Edited By Mark Rand on 27/10/2019 17:22:48

            Cheers Mark, we have a Cromwells in Worcester, I'll try them also…

            #435035
            Howard Lewis
            Participant
              @howardlewis46836

              In the old days, it used to be said that a Fitter could cut to within 0.005" (0.127 mm ) with a hammer and chisel.

              There is a Cornish beam engine carrying an insert in the Piston Rod that is hardly visible. It was inserted Many Many years ago, by a fitter, who probably had no access to a lathe, (and if if he had, would have had to use callipers to measure the sizes, by feel ) A masterpiece of work with a file and emery!

              Howard

              #435089
              Nigel McBurney 1
              Participant
                @nigelmcburney1

                I have a Rabone 6 inch steel rule, ex gov 1959.reading the above posts about dimensioning,how about the engraving on this rule one side has divisions istarting in 20ths of an inch,fair enough and going down to 100 ths of an inch,qite difficult to read with engraved lines at ten thou apart,on the other edge its divided in 12 ths 24ths, 48ths and 96ths of an inch ,again in normlal conditions virtually impossible to read accurately. I have never used any of these divisions or seen any reason why 12ths to 96 ths would be used,the only place I have seen where multiples of a dozen is used is small angle,eg taper pins and taper keys at 1 in 96 ratio. Any ideas ?

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