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T51 tool post on Boxford 4.5″

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T51 tool post on Boxford 4.5″

Home › Forums › Workshop Tools and Tooling › T51 tool post on Boxford 4.5″

Viewing 5 posts - 1 through 5 (of 5 total)
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  • 7 January 2023 at 23:33 #20886
    Robin Salmon
    Participant
      @robinsalmon

      Will it fit

      7 January 2023 at 23:33 #628091
      Robin Salmon
      Participant
        @robinsalmon

        I'm asking if a t51 qctp will fit a 4.5" Boxford model A.

        I'm sure some of you will know. The T51 is advertised as 125mm min center height, where as a T31? Is 112mm which is the max height but has a smaller tool holder. My 4.5 mm Boxford is obviously 112mm centre height, but I would like to have the ability to put bigger tools in, I know I could be above centre but can always mill some off the bottom of the tool. Thanks for looking

        8 January 2023 at 03:48 #628101
        Tony Watson 5
        Participant
          @tonywatson5

          I use T51 holders on my nine inch (4.5 inch centre height) Hercus. The gaps in the holders are 16 mm but the largest practical size for a tool is around 12 mm (insert or cutting edge height). The measurement you need to consider is the centre height from the top of the topslide. I thing this is pretty common top most South Bend clones, including Boxford. The Hercus measures 20mm.

          8 January 2023 at 14:25 #628180
          Robin Salmon
          Participant
            @robinsalmon

            Thanks Tony, I get most of your post, however the 20mm you mention, I can't figure where this is. 20mm height to the top of the compound slide from the cross slide?. Regards Rob

            8 January 2023 at 20:57 #628255
            Tony Watson 5
            Participant
              @tonywatson5

              The 20 MM is from the top of the compound slide ie the surface where the toolpost is mounted.

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