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    How to convert STL to 3MF?

    Scheduled Pinned Locked Moved SketchUp for 3D Printing
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    • pilouP Offline
      pilou
      last edited by

      Yes it has both stl - 3FM as Import / export! 😉
      And some other ones of course! 😄

      Frenchy Pilou
      Is beautiful that please without concept!
      My Little site :)

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      • BoxB Offline
        Box
        last edited by

        You could just adjust the stl export settings to work with your printer.

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        • I Offline
          Involute
          last edited by

          @box said:

          You could just adjust the stl export settings to work with your printer.

          How would I do that within SU? Especially since the STL format doesn't include dimension units.

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          • BoxB Offline
            Box
            last edited by

            The export dialog has a button 'Options' which allows you to change the output.
            This even lets you model in meters and export in mm, thus avoiding any tiny face issues.

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            • I Offline
              Involute
              last edited by

              @box said:

              The export dialog has a button 'Options' which allows you to change the output.
              This even lets you model in meters and export in mm, thus avoiding any tiny face issues.

              I had been exporting in Model Units. I switched it to Inches but, unfortunately, it didn't solve the problem. Thanks for the pointer, though.

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              • Dave RD Offline
                Dave R
                last edited by Dave R

                @involute said:

                I had been exporting in Model Units. I switched it to Inches but, unfortunately, it didn't solve the problem. Thanks for the pointer, though.

                What are you modeling? What units did you use for modeling?

                When I model for 3D printing I always set the modeling units to meters and enter inches or millimeters as meters. As Box wrote, that avoids the tiny face issue. Some slicers will allow you to set import units in inches. The one I have for my printer only uses millimeters for the import units. If I need to model in inches I do so and then scale accordingly. The part shown in the screen shot is designed to snap onto a 3/4 in. dia. tube.
                Screenshot - 4_23_2023 , 8_13_54 AM.png
                The export is done with units set as Model Units or Meters. Import into the slicer as millimeters and no need to adjust the scale in the slicer.

                https://live.staticflickr.com/65535/52680585437_7f1532e232_b.jpg

                Please update your profile. It says you're still using SU2018.

                Etaoin Shrdlu

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                • I Offline
                  Involute
                  last edited by

                  I model in inches and export in model units. I tried exporting in inches but doing so didn’t solve the problem. As far as I can tell, my slicer assumes all imports are in mm (I’ve sent a question about this to tech support but haven’t heard back).

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                  • Dave RD Offline
                    Dave R
                    last edited by

                    @involute said:

                    I model in inches and export in model units. I tried exporting in inches but doing so didn’t solve the problem. As far as I can tell, my slicer assumes all imports are in mm (I’ve sent a question about this to tech support but haven’t heard back).

                    If you can find any place to change the units in the slicer's preferences or import settings, you probably can't change it.

                    If you aren't doing anything with curves or other rounded shapes modeling in inches should work well. Export with units set to millimeters. A lot of what I model for 3D printing has curves. Modeling at the larger size allows the use of more segments in the various curves.

                    Another example. Modeled using millimeters as meters. STL exported with units set to meters. Clips onto a 1 in. diameter tube.

                    https://live.staticflickr.com/65535/52657224976_afed3db84c_o.png


                    https://live.staticflickr.com/65535/52656735937_21200c31f4_b.jpg

                    Etaoin Shrdlu

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                    • I Offline
                      Involute
                      last edited by

                      Aah! That was it, Shrdlu. Model in inches, export STL in mm, import in mm, and the model in the slicer is perfectly sized. Thanks!

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                      • Dave RD Offline
                        Dave R
                        last edited by

                        @involute said:

                        Model in inches, export STL in mm

                        That's not what I was telling you to do but if it works for you, great.

                        Etaoin Shrdlu

                        %

                        (THERE'S NO PLACE LIKE)

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                        M30

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