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    What CAD software you use?

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    • arhiundefined
      arhi @bot
      last edited by

      @bot yeah well between freecad, arcwelder and slic3r I think something interesting open source can be born... the major issue is an investment of time... just look how much kicad progressed after cern added a single paid developer to work on it full time.. prusaslicer has prusa research behind them, cura has ultimaker, idemaker has raise3d.. dunno who's backing superslicer but if it's just someone free time thats always scary 😞

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        https://www.luban3d.com/

        It's not quite CAD. More like... post processor? Pre processor?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • Stu3Dentundefined
          Stu3Dent
          last edited by

          Solidworks, Artec Studio and Blender for some of my projects sometimes. Still learning Solidworks, even though I've been working with it for a couple of years. Blender is for animations mostly.

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          • LidaDidaundefined
            LidaDida
            last edited by

            Inventor

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            • theruttmeisterundefined
              theruttmeister @arhi
              last edited by

              @arhi said in What CAD software you use?:

              @bot said in What CAD software you use?:

              I just tried to look, I do not know if AMF/3MF support "solid" geometry. I'd love to find out.

              When you export a solid from FreeCAD to .AMF it triangulates it so I would assume AMF is triangles only (so basically STL's + meta data) as FreeCAD works normally with solids and if it could save solid into .amf it would. I'm not sure but it makes sense.

              As others have said, .3MF is just a container file, it in theory supports any anything inside. DXF (yes, for laser cutters), STL, STEP... (I was there at /b when microsoft launched .3MF, and after reading the spec I couldn't have told you what problem it actually solved.)

              STEP/IGES works for decades for the engineering industry as an interchangeable file format for solids but not many slicers know how to deal with them. Machining CAM tools normally handle them ok, and I believe they would be totally ok for 3d print format as well. The only problem is that you can't handle solid formats on "cpu challenged" devices, and slicing a solid requires complex rendering of the solid that's rather "expensive" compared to a mesh that can be rendered on your watch. I'm not sure if STEP/IGES are protected by some patents, it would not surprise me if they are :(.

              Anyhow if we see how few open source tools know how to properly deal with STEP/IGES that might be the explanation..

              IGES and STEP are quite different. (IGES is only still supported by anyone because the US DoD requires it iirc).
              The important differences being that IGES can describe non-manifold solids. STEP can't.
              And STEP is still being updated. IGES hasn't had an update in over 20 years.

              There is 1 patent I'm aware of that describes how to slice a STEP for printing... It's more complex, but if we want to do things like actually use arc g-code we need a slicer that can actually accept arcs.

              If you asked me 10 years ago what the biggest software issue in 3D printing was, I would have said STL.
              Sad that we haven't moved past that point.

              Oh, and I use Fusion.

              Does anyone use Fusions internal slicer? I don't know if its converting to STL internally...

              Isolate, substitute, verify.

              Phaedruxundefined botundefined 2 Replies Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator @theruttmeister
                last edited by

                @theruttmeister https://forum.duet3d.com/topic/14872/fusion-360-fdm-fff-slicing?_=1598474627031

                Check that out for the Fusion Slicer.

                Z-Bot CoreXY Build | Thingiverse Profile

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                • botundefined
                  bot @theruttmeister
                  last edited by

                  @theruttmeister said in [What CAD software you use?]

                  [...]
                  Does anyone use Fusions internal slicer? I don't know if its converting to STL internally...

                  Judging by the Fusion 360 API, I doubt they go fully to STL. They likely just triangulate a mesh internally and use that. Unfortunately, there is no ability to set at what resolution the mesh is made so it's kind of not great. I have long-term plans to cram prusaslicer (libslic3r) into Fusion as an add-in. Step to slicing with no middle format. It will be even easier now that they have their own slicing -- I can use the additive/manufacturing environment to set up the print just as they would, but then take over the process before the slicing is done or settings are chosen.

                  *not actually a robot

                  theruttmeisterundefined 1 Reply Last reply Reply Quote 0
                  • theruttmeisterundefined
                    theruttmeister @bot
                    last edited by

                    @Phaedrux

                    Thanks, interesting link.

                    I would assume its the same slicer code that dates all the way back to Topolabs...

                    @bot said in What CAD software you use?:

                    @theruttmeister said in [What CAD software you use?]

                    [...]
                    Does anyone use Fusions internal slicer? I don't know if its converting to STL internally...

                    Judging by the Fusion 360 API, I doubt they go fully to STL. They likely just triangulate a mesh internally and use that.

                    Those two things are the same... its not like STL is anything more than a mesh.

                    Unfortunately, there is no ability to set at what resolution the mesh is made so it's kind of not great. I have long-term plans to cram prusaslicer (libslic3r) into Fusion as an add-in. Step to slicing with no middle format.

                    Given that whatever math Fusion is using to describe its solids (eg, brep or nurbs) is nothing like an STL, you might need to do some work on getting an input that prusaslicer can actually accept.

                    Isolate, substitute, verify.

                    botundefined 1 Reply Last reply Reply Quote 0
                    • botundefined
                      bot @theruttmeister
                      last edited by

                      An STL is a very specific format and not the format that Fusion uses internally. I guess I'l stop responding to you in any way because all you want to do is argue without any understanding of what you're talking about. The Fusion API is documented, you can read it yourself.

                      *not actually a robot

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                      • NiklasPundefined
                        NiklasP
                        last edited by NiklasP

                        I mostly use Inventor and Nastran in-CAD.

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