Jump to content

Missing Parts When Sliced


christhetech131

Recommended Posts

Posted · Missing Parts When Sliced

Hello!  I'm new to 3d printing in general and I was attempting to build a Jane Foster Helmet (STL Attached).  When I slice it I lose sections of the build.  Can anyone advise me how to fix it?  I've tried adding custom supports to the build in different configurations and have been unsuccessful getting this to print.  I've been doing tiny models to test with before building a full scale model.  Thank you in advance for your help!

Jane Foster Hollow.stl

  • Link to post
    Share on other sites

    Posted · Missing Parts When Sliced

    There are a couple of things happening.

    When you open a model and the "Model is not Watertight" warning comes up it means there are errors in the model.  Simple errors can be fixed in Cura using the Mesh Tools plugin.  More extensive repairs may require an on-line service.  A lot of errors likely means going back to the CAD software.

    I thought maybe the walls were too thin, but it looks like there were 20 places where adjacent surfaces weren't joined together.

    This is from the on-line service I used for repair:

    -> Analysed your file:
    --> 20 Naked edges (?)
    --> 0 Planar holes (?)
    --> 1 Non-planar holes (?)
    --> 0 Non-manifold edges (?)
    --> 0 Inverted faces (?)
    --> 0 Degenerate faces (?)
    --> 0 Duplicate faces (?)
    --> 0 Disjoint shells (?)
    -> Repairing: 100.00%
    ----- Repair completed in 209ms ------
    -> Vertex count changed from 821 to 822 (+1)
    -> Triangle count changed from 1620 to 1640 (+20)

     

    This one seemed to slice alright...

    1438609238_JaneFosterHollow_fixed.stl

    • Thanks 1
    Link to post
    Share on other sites

    Posted · Missing Parts When Sliced
    33 minutes ago, GregValiant said:

    There are a couple of things happening.

    When you open a model and the "Model is not Watertight" warning comes up it means there are errors in the model.  Simple errors can be fixed in Cura using the Mesh Tools plugin.  More extensive repairs may require an on-line service.  A lot of errors likely means going back to the CAD software.

    I thought maybe the walls were too thin, but it looks like there were 20 places where adjacent surfaces weren't joined together.

    This is from the on-line service I used for repair:

    -> Analysed your file:
    --> 20 Naked edges (?)
    --> 0 Planar holes (?)
    --> 1 Non-planar holes (?)
    --> 0 Non-manifold edges (?)
    --> 0 Inverted faces (?)
    --> 0 Degenerate faces (?)
    --> 0 Duplicate faces (?)
    --> 0 Disjoint shells (?)
    -> Repairing: 100.00%
    ----- Repair completed in 209ms ------
    -> Vertex count changed from 821 to 822 (+1)
    -> Triangle count changed from 1620 to 1640 (+20)

     

    This one seemed to slice alright...

    1438609238_JaneFosterHollow_fixed.stl 80.16 kB · 0 downloads

    This sliced perfectly!  I seem to be running into trouble getting it to be hollow to make it wearable.  I tried to remove the excess faces in the model and but that causes the watertight error again.  Any ideas how to remove the bottom face so it could be printed in a wearable size?  I appreciate all your help!

    image0.jpeg

    image2.jpeg

  • Link to post
    Share on other sites

    Posted · Missing Parts When Sliced

    It would have to go back into a CAD program for that.  You could design an insert the shape of your head and export it as an STL file.  Then open the helmet and the insert in something like Blender or MS 3D Builder and subtract the insert from the helmet.  You'd really want to get it right the first time.

     

    A second option is to go the other way.  Take a trip to Africa and visit a head shrinker and have him/her fit your head to the helmet.

    It worked out OK for this guy.

    Untitled.thumb.png.ac505045bfc05ffee8fb3e58324f17a6.png

     

    • Like 1
    Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
    • Our picks

      • S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
        (Sorry, was out of office when this released)

        This update is for...
        All UltiMaker S series  
        New features
         
        Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
          • Like
        • 0 replies
      • Ultimaker Cura 5.6 stable released
        Cura now supports Method series printers!
         
        A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
        • 48 replies
    ×
    ×
    • Create New...