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  • rwtdiver
    Vice Admiral

    • Feb 2019
    • 1891

    Originally posted by He Who Shall Not Be Named

    Go with 1/32. As I'm doing the layup, I'll strive to make the above waterline structures paper thin to minimize displacement of those structures. If I put the motor in the wet, I'll be able to size the 2" WTC to fit.

    Proceed, sir!
    WOW!

    That boat sure would make a great 3D printed project!

    I am looking!

    Rob
    "Firemen can stand the heat".

    Comment

    • redboat219
      Admiral

      • Dec 2008
      • 3181

      How about 2" wtc with 2.5" ballast section?
      Make it simple, make strong, make it work!

      Comment

      • He Who Shall Not Be Named
        Moderator

        • Aug 2008
        • 12964

        Originally posted by redboat219
        How about 2" wtc with 2.5" ballast section?
        KISS.................
        Who is John Galt?

        Comment

        • redboat219
          Admiral

          • Dec 2008
          • 3181

          Originally posted by He Who Shall Not Be Named

          KISS.................
          I hear ya...
          Make it simple, make strong, make it work!

          Comment

          • biggsgolf
            Captain

            • Jan 2020
            • 794

            Originally posted by rwtdiver

            WOW!

            That boat sure would make a great 3D printed project!

            I am looking!

            Rob
            "Firemen can stand the heat".
            I totally agree!

            Comment

            • He Who Shall Not Be Named
              Moderator

              • Aug 2008
              • 12964

              Originally posted by biggsgolf

              I totally agree!
              (Holy Christ!)
              Who is John Galt?

              Comment

              • redboat219
                Admiral

                • Dec 2008
                • 3181

                Can you generate an STL file from a 3D render?
                CB-class midget submarine built for the Italian Navy during World War II. Displacement: 35.4 tons surfaced 44.3 tons submerged Length: 15.00 m (49.21 ft) Beam: 3.00 m (9.84 ft) Draught: 2.05 m (6 ft 9 in) Propulsion: 1 diesel engine, 1 electric - CB-class submarine - 3D model by Vadim Yurinov (@bartang)
                Make it simple, make strong, make it work!

                Comment

                • Subculture
                  Admiral

                  • Feb 2009
                  • 2251

                  Depends on the quality of the file. Something that looks good on screen doesn't always translate well to a printed object.

                  Comment

                  • rwtdiver
                    Vice Admiral

                    • Feb 2019
                    • 1891

                    OK Builders!

                    This question has been asked so many times, but here goes one more time. I am an 80 plus year old, I do somewhat understand TinkerCad at this point. But I would so much like to build a submarine or anything for that matter. But I would like to be able to design and set up my own STL files and build it.

                    Is there a fairly simple CAD (and free may be) CAD download that might be a good choice for an OLDER BRAIN? It is so complicated and maybe I am asking for too much! I would love to build the CB 20 Class submarine, but do it with files that I designed...

                    Thanks for the input.

                    Rob
                    "Firemen can stand the heat."

                    Comment

                    • Ken_NJ
                      Captain

                      • Sep 2014
                      • 832

                      Rob, with the things I see in the background in the DT meetings you print with a 3D printer, right? I have a X1C and intend to design and print things on it, no plans for a hull at this time of any kind. I installed Fusion 360 and will be using it to design model and other parts using it, then import it into the Bambu software to print it. In my opinion, and what I will do, is watch Youtube 101 videos on using Fusion 360 and Bambu Studio. If you have two monitors, one with the YT video and the other monitor do what they do, follow along, on the other monitor. To me that seems the quickest way to 'learn' the software. My two cents.

                      I can't say anything about Tinkercad, others may.

                      Comment

                      • Albacore 569
                        Commander

                        • Sep 2020
                        • 453

                        Originally posted by rwtdiver

                        WOW!

                        That boat sure would make a great 3D printed project!

                        I am looking!

                        Rob
                        "Firemen can stand the heat".
                        Hell, someone else finally noticed...lol. Hell yes. So many cool sub subjects, everyone is 'stuck in' still to just another type VIIBs.. lol

                        Cutting the flat 1/2-inch blanks for the hull. Also cutting out paper templates of the sections....30 of them to glue to semi-soft maple1/2" thick blanks for the scroll saw.
                        Last edited by Albacore 569; 01-26-2025, 07:36 PM.

                        Comment

                        • Albacore 569
                          Commander

                          • Sep 2020
                          • 453

                          Originally posted by redboat219
                          Can you generate an STL file from a 3D render?
                          https://sketchfab.com/3d-models/cb-c...f59bb891517eb3
                          I know researched all this for a possible project months/ even years ago. Using the useful rotating model as a guide if the cross sections cause a question. Really a wealth of information at my deposal gratefully.

                          David, if you read this, acid etched deck with all the limper holes be possible?

                          Comment

                          • He Who Shall Not Be Named
                            Moderator

                            • Aug 2008
                            • 12964

                            Originally posted by Albacore 569

                            I know researched all this for a possible project months/ even years ago. Using the useful rotating model as a guide if the cross sections cause a question. Really a wealth of information at my deposal gratefully.

                            David, if you read this, acid etched deck with all the limper holes be possible?
                            Yes, attach and fair in all the acid-etched detail parts to the hull and sail. Detail the **** out of your masters -- the tooling will capture and transfer all to the GRP parts.

                            About the acid-etched deck: No problem, no matter the depth or geometry of the holes -- the rubber glove will capture all. The bonus of doing the tool over a fully detailed master is that there is little 'detail' work on the eventual parts -- they already possess the detailing; the GRP hull parts will be entirely homogenesis; all one type of material with no breaks or cracking at seams between dissimilar materials as a consequence of different expansion rates do to temperature changes.

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                            Pile on the details, Steve... you detail nut, you!

                            David
                            Fellow Detail Nut
                            Who is John Galt?

                            Comment

                            • He Who Shall Not Be Named
                              Moderator

                              • Aug 2008
                              • 12964



































                              Who is John Galt?

                              Comment

                              • Albacore 569
                                Commander

                                • Sep 2020
                                • 453

                                Originally posted by He Who Shall Not Be Named

                                Yes, attach and fair in all the acid-etched detail parts to the hull and sail. Detail the **** out of your masters -- the tooling will capture and transfer all to the GRP parts.

                                About the acid-etched deck: No problem, no matter the depth or geometry of the holes -- the rubber glove will capture all. The bonus of doing the tool over a fully detailed master is that there is little 'detail' work on the eventual parts -- they already possess the detailing; the GRP hull parts will be entirely homogenesis; all one type of material with no breaks or cracking at seams between dissimilar materials as a consequence of different expansion rates do to temperature changes.
                                [
                                Pile on the details, Steve... you detail nut, you!

                                David
                                Fellow Detail Nut
                                I was thinking primarily of 'after mold' acid etched deck and the limper holes. Any thoughts?

                                Comment

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