Jump to content
Ultimaker Community of 3D Printing Experts

Ignoring support in cura


shaihem
 Share

Recommended Posts

Posted · Ignoring support in cura

Hello everyone,

 

Is there anyway that I can tell cura to ignore printing any part of a model that needs support?

 

Let say I have hollow cube, the roof will need support, so by doing what I said, the cube will be printed except the roof.

 

Any ideas?

 

Best

  • Link to post
    Share on other sites

    Posted · Ignoring support in cura
    4 minutes ago, shaihem said:

    Let say I have hollow cube, the roof will need support, so by doing what I said, the cube will be printed except the roof.

     

    This can be achieved by setting the number of Top Layers to 0, but that is not a generic way of "not printing" anything that overhangs more than the overhang angle.

  • Link to post
    Share on other sites

    Posted · Ignoring support in cura
    10 minutes ago, ahoeben said:

     

    This can be achieved by setting the number of Top Layers to 0, but that is not a generic way of "not printing" anything that overhangs more than the overhang angle.

     

    Very well, but I need something generic if possible

  • Link to post
    Share on other sites

    Posted · Ignoring support in cura

    It is not something Cura supports in a generic way. Cura is based on the assumption that models are "watertight". Even a cup or your cube without a top is watertight in the real world because it has an inner and outer wall.

     

    With any physical object, if you make a cross-section, and draw a straight line over that cross-section, you will always cross an even number of "transitions between the object and the space around it" (ie: walls). A single "wall" would be infinitely thin and that can not exist in reality (though it is easy to create digitally).

     

    Just not printing specific faces makes the object not watertight, which is not something Cura "wants to" do.

  • 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
     Share

    • Our picks

      • The Ultimaker Showcase — October 14. What's new?
        Your dear friends at Ultimaker have some exciting news and insights for you!
         
        • 0 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        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
        • 10 replies
    ×
    ×
    • Create New...