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  • MFR1964
    Detail Nut of the First Order
    • Sep 2010
    • 1315

    That will be a nice XXI David, getting steeringrods hidden away is a challence, those boats have even on a bigger scale problems with that.
    There are still some idiots who think that building a smalll boat is as easy building a big one, believe me, it's not.
    I tackled the seehund, but that is my limit in building mini subs


    Manfred
    I went underground

    Comment

    • He Who Shall Not Be Named
      Moderator
      • Aug 2008
      • 12508

      Originally posted by MFR1964
      That will be a nice XXI David, getting steeringrods hidden away is a challence, those boats have even on a bigger scale problems with that.
      There are still some idiots who think that building a smalll boat is as easy building a big one, believe me, it's not.
      I tackled the seehund, but that is my limit in building mini subs


      Manfred
      Let's face it Manfred, we're both Certifiable. But I'm just run-of-the-mill crazy. You. You, on the other hand, are pure 'Silence Of The Lamb's' crazy!!! Those little boats of yours stand as stunning proof of that.

      David
      Fellow Whack-Job
      Who is John Galt?

      Comment

      • He Who Shall Not Be Named
        Moderator
        • Aug 2008
        • 12508

        Like Clockwork
        Who is John Galt?

        Comment

        • He Who Shall Not Be Named
          Moderator
          • Aug 2008
          • 12508

















          Who is John Galt?

          Comment

          • He Who Shall Not Be Named
            Moderator
            • Aug 2008
            • 12508










































            URL]
            Who is John Galt?

            Comment

            • Subculture
              Admiral
              • Feb 2009
              • 2169

              Are you using the foam to reduce the amount of rubber required for the tool, or as a means to increase stiffness in the mould?

              Comment

              • He Who Shall Not Be Named
                Moderator
                • Aug 2008
                • 12508

                Originally posted by Subculture
                Are you using the foam to reduce the amount of rubber required for the tool, or as a means to increase stiffness in the mould?
                Both. The displacing foam helps to ensure proper registration of the rubber elements within the flask when preparing for a pour. This will become apparent come the next couple of installments.
                Who is John Galt?

                Comment

                • He Who Shall Not Be Named
                  Moderator
                  • Aug 2008
                  • 12508






















                  Who is John Galt?

                  Comment

                  • redboat219
                    Admiral
                    • Dec 2008
                    • 2885

                    Slush casting?
                    Make it simple, make strong, make it work!

                    Comment

                    • He Who Shall Not Be Named
                      Moderator
                      • Aug 2008
                      • 12508

                      Originally posted by redboat219
                      Slush casting?
                      No. Though without a core -- as the tools appear to be at this point of construction -- slush casting or GRP layup would be the only way to achieve a hollow part. But I'm not finished with the tools yet, the next operation is to form a core that will produce hollow parts. That process should be completed today. Casting of the first parts tomorrow.

                      Here are some examples of RTV rubber tools that employ a core:
























                      Who is John Galt?

                      Comment

                      • RCSubGuy
                        Welcome to my underwater realm!
                        • Aug 2009
                        • 1802

                        Masterclass on molding and casting complex parts. I love it!

                        Comment

                        • redboat219
                          Admiral
                          • Dec 2008
                          • 2885

                          Still go into the pot for pressure curing?
                          Make it simple, make strong, make it work!

                          Comment

                          • He Who Shall Not Be Named
                            Moderator
                            • Aug 2008
                            • 12508

                            Originally posted by redboat219
                            Still go into the pot for pressure curing?
                            Yup. Details on that process to follow...
                            Who is John Galt?

                            Comment

                            • redboat219
                              Admiral
                              • Dec 2008
                              • 2885

                              incorporate prop tubes in the horizontal stabs during final casting?
                              Make it simple, make strong, make it work!

                              Comment

                              • He Who Shall Not Be Named
                                Moderator
                                • Aug 2008
                                • 12508

                                Originally posted by redboat219
                                incorporate prop tubes in the horizontal stabs during final casting?
                                Stay tuned... same bat-time, same bat-channel.
                                Who is John Galt?

                                Comment

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