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Posted (edited) · Never been able to open .3mf files in cura

just what the title says i have not been able to open any .3mf file in cura have always update straight from ultimaker website when prompted. i try file>open ive tried dragging and dropping and directly clicking the file most of the time i get no error but sometimes it gives the attached error "no models in file" several differant files 

Screenshot 2023-12-02 211507.png

Edited by rpattonny
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    Posted · Never been able to open .3mf files in cura

    Could you please go to your Cura configuration directory (in Cura, go to File > Show Configuration Folder) and upload the cura.log file?

     

    Also if you could provide a sample or two of 3mf files which don't work that would help.

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    Posted · Never been able to open .3mf files in cura

    I can't really see anything wrong in the log file - unfortunately when there's no visible culprit the first resort is the software version of "turn it off then on again" -  a clean reinstall. There's instructions for it in this support article. Just make sure you download a fresh copy instead of running the installer you have because the download may have been corrupted.

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    Posted · Never been able to open .3mf files in cura
    3 hours ago, Breuer-IT said:

    it is also a file from makerworld.

    It's possible their 3mf files are somehow incorrectly formatted - 3MF is an open source standard and Cura shouldn't have any trouble reading valid files (the format supports features Cura doesn't have, but Cura just ignores them).

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    Posted (edited) · Never been able to open .3mf files in cura

    Hi Everyone.


    I too am having some problems opening a .3mf file - but this one is from makerworld. Here is a link to it: https://makerworld.com/en/models/71322#profileId-75511

     

    Here's the error I get

     

    image.png.082fb90fbe0e23d28e3dcccd1d5e2d5e.png

     

    I even tried downloading Prusa slicer (v2.7.2 is the latest at the time of this post), that couldn't open it either (says the 3mf file is corrupt). I then went to SwiftConverter (https://www.swiftconverter.com/converter.html?threed) which then converted the .3mf to a STL for me, but I only got the top part and no rear lid. I googled some more and found this 

    where OP claims he can't open the 3mf in 5.3.0 but can do in older versions. So I downloaded & installed v 5.2.0, and that couldn't open it either.

     

    Edit, oops, ended up posting this before I finished my reply.

     

    In the end what I had to do is download and install Bambu Studio, then open the .3mf there (worked successfully) and then went to file -> export -> all models as STL

     

    Now I can and open & print in Cura.

     

    Edit 2: You can actually go to file -> export -> generic 3mf, and that will now open in Cura (and presumably other slicers too). Looks like in typical fashion Bambu 3mfs don't open in other slicers.

    Edited by SamPilgrimsTooth
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    Posted · Never been able to open .3mf files in cura

    @SamPilgrimsTooth Awesome investigation work there.

     

    2 hours ago, SamPilgrimsTooth said:

    Edit 2: You can actually go to file -> export -> generic 3mf, and that will now open in Cura (and presumably other slicers too). Looks like in typical fashion Bambu 3mfs don't open in other slicers.

    Fun fact that explains a lot: Bambu was started by a group of engineers who worked at Apple.

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    Posted · Never been able to open .3mf files in cura

    Actually most of them worked for DJI

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    Posted · Never been able to open .3mf files in cura
    16 hours ago, Dustin said:

    Actually most of them worked for DJI

    It only takes one bad Apple to spoil the bunch.

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    Posted · Never been able to open .3mf files in cura

    Same problem here, No models in file when trying to open a 3mf from Makerworld

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    Posted · Never been able to open .3mf files in cura
    5 hours ago, X-Type said:

    Same problem here, No models in file when trying to open a 3mf from Makerworld

    Please post the file or a link to it, but as discussed above it may be a problem with the file itself rather than Cura.

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    Posted · Never been able to open .3mf files in cura

    Cura's 3MF support is quite limited and buggy. Whoever implemented it has not read the specification very carefully. For example, Cura tries to read the file "3D/3dmodel.model" inside the Zip archive, hard-coded! The actual model file name is listed in the relationship file, but Cura doesn't even read the relationships. 🤷‍♂️

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    Posted · Never been able to open .3mf files in cura
    2 hours ago, tomasf said:

    For example, Cura tries to read the file "3D/3dmodel.model" inside the Zip archive, hard-coded!

    The 3MF specifications say that that should be the filename of the file that contains the model. Any well-behaving program that outputs 3MF files should follow that convention.

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    Posted · Never been able to open .3mf files in cura

    To me that spec reads like "/3D/3dModel.model" is just an example of a valid name.

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    Posted · Never been able to open .3mf files in cura
    33 minutes ago, ahoeben said:

    To me that spec reads like "/3D/3dModel.model" is just an example of a valid name.

    It's an example in the "Part Naming Recommendations" section, and the example of a relationships file directly above that uses the filename "/3D/3Dmodel.model" (and those are the only examples of use of a .model filename anywhere in the specs).

    I will concede that it is technically just a recommendation, not a requirement, but based on the 3MF files I've seen output by several different programs, it's a de facto standard.

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    Posted · Never been able to open .3mf files in cura

    I'm using Creality Ender 3, V2. I can open the 3mf in Creality Print and export to STL. I'm a complete newb and have been using Cura. Once converted, Cura can load the STL file.

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    Posted · Never been able to open .3mf files in cura
    1 hour ago, tweedledee said:

    I'm using Creality Ender 3, V2. I can open the 3mf in Creality Print and export to STL. I'm a complete newb and have been using Cura. Once converted, Cura can load the STL file.

    The latest versions of Creality Print are based on OrcaSlicer, which is based on Bambu Studio which would explain why it can open that. STL is a basic format where as far as I know you couldn't insert vendor-specific extensions even if you wanted to.

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