3D printed 1/144 Ohio class SSBN

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  • redboat219
    Member
    • Jan 2005
    • 519

    3D printed 1/144 Ohio class SSBN

    STL files included.
  • X Bubblehead
    Member
    • Sep 2017
    • 59

    #2
    First clue there were going to be issues: Modeled in Sketch-up. (There's a reason the most popular version is free, with two "upper tier" paid versions with a few more features. This model was constructed with the Pro version, and it still came out bad.) Notice how smooth the model looks on screen, but the final STL output is trashed? (see following)

    2nd: Excessive faceting requiring more post-printing repair than this is worth. (Model it properly and there's minimal follow-up work to do.)

    3rd: Even if he had a perfectly-constructed 3D model, the guy never had much of a chance at a decent print with his bargain-basement printer - note the under extrusion on every layer, and poor fitment.

    4th: There are too many inaccuracies in the model to justify wasting filament (and a lot of printer time) for. Square MBT vents? An out-of-scale sail? A backwards snorkel mast opening in the sail? There's no substitute for spending the time to research and use reference material.

    You get what you pay for; and in this case I award it a negative value. The video was painful to watch, and a detriment to promoting 3D modeling and printing for this hobby. Sorry man, but this one rates a three thumbs down. Referencing Crimson Tide in his build video only ratcheted the pain up a few notches. . . I haven't met a submariner yet who thought that movie wasn't a five-finger gagger.

    If someone wants a more accurate 3D printed 726 class boat model, this one costs a few bucks but would be well worth the time to print: https://hum3d.com/3d-models/ohio-class-submarine/ While slightly imperfect, (I've sent them a revised stern) it's pretty good and contains enough geometry to minimize unsightly faceting.
    Last edited by X Bubblehead; 05-14-2021, 08:58 AM.

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    • X Bubblehead
      Member
      • Sep 2017
      • 59

      #3
      Pictures may illustrate the point better than words. The first two pictures are of the original model in Wireframe Shade and Smooth Shade mode. The second two are the same shape only modeled with more polygons to smooth out the mesh. Which one would you rather touch up after printing?

      Click image for larger version

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      Click image for larger version

Name:	Original Smooth Shade.jpg
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      Click image for larger version

Name:	iBow Textured Wire.jpg
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      Click image for larger version

Name:	iBow Smooth Shade.jpg
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Size:	50.8 KB
ID:	135894

      The sail, Fairwater planes and rear control surfaces were not included in the download for evaluation.
      Last edited by X Bubblehead; 05-13-2021, 05:21 PM.

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      • redboat219
        Member
        • Jan 2005
        • 519

        #4
        Part 2 https://youtu.be/7lxUKE6yFS4

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        • redboat219
          Member
          • Jan 2005
          • 519

          #5
          The finished hull https://youtu.be/vdIg5qBrBU4

          Comment

          • tom dougherty
            Senior Member
            • Jul 2005
            • 1355

            #6
            At 11 minutes on the last video you can clearly see the prominent hull faceting that is mentioned above. Considering all the work that went into assembling, etc. and building a wood base, why would you not try to smooth out the hull?

            Comment

            • redboat219
              Member
              • Jan 2005
              • 519

              #7
              Looks more like the Hindenburg than an Ohio

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