Jump to content
Ultimaker Community of 3D Printing Experts

Curious: Model changes from solid (undesired) to hollow (correct) if rotated


Recommended Posts

Posted · Curious: Model changes from solid (undesired) to hollow (correct) if rotated

In Sketchup I drew a spacer 100mm square shape with edges approx 10mm wide and extruded it to make it about 8mm thick. Solid inspector says "everything is shiny!"


If I bring the .stl file into Cura 3.2.1 it lies flat on the build plate and looks right in solid view but showed the print time as 5.5 hours which was unexpectedly high on my Prusa i3.


Looking at it with layer view shows that it will print as a completely solid shape.


If I rotate the model (even a few degrees) it shows that it will print correctly as a hollow shape and at 90 degrees it will take 2.5 hours (which I would expect). Unfortunately if I try to print it like this it will fall over.


I changed various setting on Cura for a previous print (which worked fine) and (as far as I could remember) I have changed them back but would be pleased to hear how to fix this curious problem. 


I have done a search on other forum posts but not sure what key words to use so if this problem has been addressed I would be pleased to get a link. 


Grateful thanks!


flat shape layer view.JPG

flat shape solid view.JPG

rotated shape.JPG

drawing in sketchup.JPG

4x4-spacer5.curaproject.3mf 4x4-spacer5.stl

  • 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

      • Ultimaker showcase | April 2022 | 4pm CEST | 10am EDT
        I'm excited because I've personally produced this showcase event, so if you are curious what else I'm up to nowadays, come check it out and say hi in the chat! It would mean a lot! 
          • Thanks
          • Like
        • 4 replies
      • New here? Get ahead with a free onboarding course
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 11 replies
    • Create New...