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3.5″ Britannia Drawings LSBC

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3.5″ Britannia Drawings LSBC

Home › Forums › Beginners questions › 3.5″ Britannia Drawings LSBC

Viewing 5 posts - 1 through 5 (of 5 total)
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  • 18 February 2024 at 14:44 #715104
    David Holmes
    Participant
      @davidholmes94529

      Hi, I’m trying to draw LSBC’s 3.5″ Britannia into Solidworks, this is the tender frame. Mainly to get use to the software, any maybe have a go at building. However, I can’t see to find any refrence dimensions to place the feature in the centre of the attached photo. There’s enough dimensions to draw it and place it horizontally, but nothing to indicate a vertical measurement. Am I missing something? Can anyone advise me?

       

      Many thanks

       

      IMG_7626

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      18 February 2024 at 14:53 #715105
      Nigel Bennett
      Participant
        @nigelbennett69913

        It’s the kind of dimension that LBSC didn’t bother with overmuch, as it wasn’t important, just visual! I’d simply scale it from the drawing – it looks sort of 3/8″-ish to me. If you need some better information, you could refer to (say) Les Warnett’s 9F drawings in EiM and scale them from 5″G. Or Martin Evans’ Evening Star drawings might help.

        18 February 2024 at 15:06 #715109
        David Holmes
        Participant
          @davidholmes94529

          Ah ok, makes sense. I have Martin Evans’ book so I’ll have a look. Thanks for your help.

          26 November 2024 at 15:52 #766864
          Michael Callaghan
          Participant
            @michaelcallaghan68621

            Hi, if you can scan the plans onto your computer. Then in solidworks you can import the drawing and if you have one measurement on the plan you can input, solidworks will scale the rest of the plan for you.

            26 November 2024 at 17:08 #766889
            JasonB
            Moderator
              @jasonb

              All the dimensions are there to get the shape of the arched cut out. Position it centrally as that is what it looks like by eye and compare the height with other near dimensions, probably going to be 5/16 or 3/8

              If you want a double check then most CAD packages enable an image to be imported and you can draw over the top of that to check dimensions affter scaling the image to the correct size. All good practice.

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