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Bailey Bridge part dimensions?

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  • adt70hk
    SMF Supporters
    • Sep 2019
    • 10409

    #16
    Looking good so far Dave!

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    • Guest

      #17
      Originally posted by stillp
      What was the difference? We hadn't gone metric then.
      Not sure off the top of my head, but IIRC it had to do with the differences in engineering standards.

      Comment

      • Dave Ward
        SMF Supporters
        • Apr 2018
        • 10549

        #18
        Originally posted by Jakko
        Not sure off the top of my head, but IIRC it had to do with the differences in engineering standards.
        Major differences were in threads - UK used BSW & BSF ( Whitworth & Fine ), US used UNC & UNF - Unified National Coarse & Fine. That's is why spares for a Packard Merlin, wouldn't fit a Rolls-Royce Merlin. There were other differences, mainly in tolerancing & drawing conventions................
        Dave

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        • Dave Ward
          SMF Supporters
          • Apr 2018
          • 10549

          #19
          Wasn't at all sure this was going to print, it is just about the maximum the build plate can hold. The slightest error in levelling could mean the print not sticking, or generally failing!
          Click image for larger version

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          It could also be affected by the build plate temperature varying at the corners. It looks like the bottom right quadrant is either a bit cooler, or a tad lower. Either way it worked & 10 minutes later
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          The excess plastic just pulls away mostly, it needs going over with a scalpel to cut away any hairy bits & then a sanding stick to remove the rough edges
          Dave

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          • Neil Merryweather
            SMF Supporters
            • Dec 2018
            • 5189
            • London

            #20
            Now you're cooking ,Dave!
            An observation- you might be able to eliminate the texture on the top surfaces if you have an 'ironing' option in your slicing software.
            It's supposed to smooth out the build lines on the top surfaces. sometimes its good, sometimes not, but worth checking.

            Comment

            • Dave Ward
              SMF Supporters
              • Apr 2018
              • 10549

              #21
              Originally posted by Neil Merryweather
              have an 'ironing' option
              Yes, - I've seen the option, but not tried it out yet..................
              Dave

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              • Dave Ward
                SMF Supporters
                • Apr 2018
                • 10549

                #22
                I've steadily been printing bits & I think I have a complete set for a 3 panel bridge. They need cleaning up a bit, but nothing too drastic ( I've printed out several replacements................
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                Now, all I need is some time to piece it together
                Dave

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                • Neil Merryweather
                  SMF Supporters
                  • Dec 2018
                  • 5189
                  • London

                  #23
                  Blimey you've really got the bug, haven't you?

                  Comment

                  • JR
                    • May 2015
                    • 18273

                    #24
                    Wow that's impressive Dave, agree with Neil

                    Worthy of

                    Congratulations .
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