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Model scale discrepancy

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c4d cinema 4d scale bounding box stl
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  • MFVis
    MFVis last edited by Dr. Sassi Feb 11, 2023, 6:49 AM Jan 22, 2023, 3:22 PM

    I created an object (attached) to fit a very specific assembly. I exported it to STL for printing. When the printer opens the file (or I import the STL in C4D), it comes in with different dimensions. It's not a big difference, but as the fit requirements are very exact, a little is too much. Both are set to inch scale going out and coming in. Can't figure out what setting I'm missing. Any suggestions?

    login-to-view

    Project files here:
    https://shared-assets.adobe.com/link/70ca2865-2771-4ceb-5edd-1a5bf5aba363

    MFVis 1 Reply Last reply Jan 23, 2023, 3:15 AM Reply Quote
    • Dr. Sassi
      Dr. Sassi last edited by Jan 22, 2023, 7:56 PM

      Hi MFVis,

      Thanks for using Adobe-Cloud, and for the file.

      The answer is quite simple, the model you have in the scene has some rotation in it.
      The moment you export it, the new file has an Object Axis based on the World Coordinates (no rotation). Now import it via Merge into the scene, and that "changes" the result. But effectively, is is congruent.

      Example:
      Take a new scene, call up a cube, then rotate that cube.
      Export it as STL, then import it. Compare the size.

      Please check your model.
      Select a few polygons, then use Select Connected, then U~I to invert the selection. For a single-body STL, there should be nothing selected. But there is something selected.

      Then check as well via Attribute Manager> Mode> Modeling> mesh Check.

      My best wishes for your project.

      Dr. Sassi Sassmannshausen Ph.D.
      Senior Trainer, Maxon Master Trainer, L&D - Strategist
      Cinema 4D mentor since 2004, Member of VES, DCS.

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      • MFVis
        MFVis @MFVis last edited by Jan 23, 2023, 3:15 AM

        @MFVis - Ah! Of course. I thought it might be a simple oversight - usually is. Thank you!

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        • MFVis
          MFVis last edited by Jan 23, 2023, 3:17 AM

          Will our CIneversity stats convey over from the previous site eventually. i.e. number of postings, etc.

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          • Dr. Sassi
            Dr. Sassi last edited by Jan 23, 2023, 4:40 AM

            You're very welcome, MFVis,

            I'm glad I was able to clear that. I'm sure the next stop at the pipeline will check it again.

            The stats from the old and the even older forum are not transferred. Sorry. I certainly had asked for it, even 12 years ago when we moved the first time. It would be ~20K of posts for me alone in Cineversity. I hope that sounds not like bragging, but for me, that number stands for a large group of artists I had the pleasure to connect with; Truly an honor.

            Anyway, thanks to everyone visiting the previous forum so frequently, it stays readable for now.

            My best wishes

            Dr. Sassi Sassmannshausen Ph.D.
            Senior Trainer, Maxon Master Trainer, L&D - Strategist
            Cinema 4D mentor since 2004, Member of VES, DCS.

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            • MFVis
              MFVis last edited by Jan 23, 2023, 11:29 AM

              Zero reputation is discouraging...
              login-to-view

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              • Dr. Sassi
                Dr. Sassi last edited by Dr. Sassi Jan 23, 2023, 6:35 PM Jan 23, 2023, 6:28 PM

                Hi MFVIis,

                I had asked to take all that rating nonsense out. Sorry about this.

                My take on it, I care for everyone in the same way, studio bosses or freelance artists who are just starting out. Please ignore this rating stuff.

                So, please accept my apology. I hope this stuff vanishes TODAY.

                Cheers

                Dr. Sassi Sassmannshausen Ph.D.
                Senior Trainer, Maxon Master Trainer, L&D - Strategist
                Cinema 4D mentor since 2004, Member of VES, DCS.

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                • Dr. Sassi
                  Dr. Sassi last edited by Dr. Sassi Jan 23, 2023, 7:00 PM Jan 23, 2023, 7:00 PM

                  P.S.: Our fantastic IT team has already switched it off.
                  If you see anything of this stuff, please clear your cache. At least, that is what they tell me when I can't see any change.

                  Thank you for your perspective on that. I hope that helps other artists to feel more comfortable as well.

                  Dr. Sassi Sassmannshausen Ph.D.
                  Senior Trainer, Maxon Master Trainer, L&D - Strategist
                  Cinema 4D mentor since 2004, Member of VES, DCS.

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