Jump to content
Ultimaker Community of 3D Printing Experts

Remove shell between merged parts?


Recommended Posts

Posted · Remove shell between merged parts?

Hi All


I have a part I wish to print in two colours.




It was modelled as one part, then sliced in CAD to create two parts: one for the white and one for the blue.  (The white is "part" is actually two discrete bodies, because the blue runs right through.)


When I preview the sliced model, each "body" within the model---i.e. the two whites and one blue---is sliced as a self-contained model.  This means that each has top and bottom layers.  Since I'm printing in the same material, just with a different colour, I can think of no reason why this shouldn't be built as though it were a single model, which would mean that the blue section would have only walls and infill (i.e. no top or bottom layers) and the upper and lower white sections would, respectively, have no bottom and top layers.


Is there a setting to remove these intermediate top and bottom layers on a merged model?  In other words, to slice merged models as one model?


I have the following workaround, but it's a bit cumbersome:

  1. Load each section as model (i.e. 3 models one for each "body", rather than one for each colour).
  2. Merge the models and adjust orientation.
  3. Disable "Automatically drop models to the build plate".
  4. Ungroup the models.
  5. Use "Per model settings" to manage the top and bottom layers as required.


Thanks in advance for any help you can offer.



Best regards



  • Like 1
Link to post
Share on other sites

Posted · Remove shell between merged parts?

I think you already found the best workaround. But please feel free to make such a feature request and please let us know here so people can support it.

  • 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

    • 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
      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
      • 8 replies
  • Create New...