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Why are my 3MF exports faulty?

sebastian_glanznersebastian_glanzner Member, Developers Posts: 222 PRO
Hello everyone, 

I just tried to export a part as 3MF and my slicer software for my 3D-Printer (Flashprint 5) said it has to repair the geometry.
Also the 3D-Builder Software from Windows 10 said it has to repair my geometry. But after the repair the geometry looks wrong.

Is there anyone who has experience with the 3MF Format and can help me?

I just tried a simple geometry in 3D-Builder.
Before repair:


After repair:


It looks like the surfaces of the fillets and the hole are not connected.
What do you think?
Tagged:

Best Answer

  • SauerSauer Member Posts: 7
    Answer ✓
    Glad to see I'm not going crazy. I am getting the same behavior in Prusaslicer, Superslicer (An experimental Prusaslicer fork), and Cura.

    For example, the cup-holder in this document:

    When exported as 3MF ends up looking like this in Prusa & Superslicer:
    A disjointed collection of shells.

    In Cura the model initially looks correct:

    But on slicing its still just a disjointed collection of shells and Cura extruded in the few closed solids it could find.


    Neither slicer has a problem with an STL version of this model.

Answers

  • SauerSauer Member Posts: 7
    Answer ✓
    Glad to see I'm not going crazy. I am getting the same behavior in Prusaslicer, Superslicer (An experimental Prusaslicer fork), and Cura.

    For example, the cup-holder in this document:

    When exported as 3MF ends up looking like this in Prusa & Superslicer:
    A disjointed collection of shells.

    In Cura the model initially looks correct:

    But on slicing its still just a disjointed collection of shells and Cura extruded in the few closed solids it could find.


    Neither slicer has a problem with an STL version of this model.
  • DodaschDodasch Member Posts: 5 ✭✭
    I got the same Problem, Simplify3D and PrusaSlicer can't use the faulty 3mf files. I think it's an export Problem, hopefully the Onshape Team will fix this Problem soon! :wink:
  • nick_papageorge073nick_papageorge073 Member Posts: 178 PRO
    I have the same issue. I'm using the print software that comes with Qidi printers, and made sure it was the latest version. I was excited to try 3MF for the first time a few days ago, and it gave some errors. I gave up and went back to stl.
  • WernightWernight Member Posts: 6
    I'm happy that 3MF support is being added. Hope the issues are going to be ironed out. It seems that boolean operations aren't properly exported.
  • Matt_LoMatt_Lo Member, Moderator, Onshape Employees Posts: 12
    We are pushing a fix for this soon. Please submit support tickets so that we can track the problem
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