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Strange multimaterial slicing  

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Cédric Doutriaux
(@cedric-doutriaux)
Member
Strange multimaterial slicing

Hello

I'm trying to print a multimaterial project.
I draw it with openscad all the colors inserts have the same deep in the big white part.
screeshot project

the 3MF project is here : https://uncloud.univ-nantes.fr/index.php/s/2eoetgGxZe66APM

But when I slice, only the blus is deep in the white part. others colors have desapears.
sliced

What is the problem ?

 

Posted : 17/02/2026 3:12 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Strange multimaterial slicing

this is probably a matter of extruder order and the way that you arrange the colours. 
If you cut the coloured elements out of the base white section, and then insert the coloured elements, I suspect that your colours would print as expected, however if the colour elements are overlaid on the white area as mesh modifiers, then the order of the colours will define whether they are displayed. 
If you can save your project as a project file (.3mf file) THEN ZIP COMPRESS the project file, 
You should be able to attach the ZIP file, to the next post. and someone will help you

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 17/02/2026 3:49 pm
Cédric Doutriaux
(@cedric-doutriaux)
Member
Topic starter answered:
RE: Strange multimaterial slicing

thaks for your response.
I'm not sure to understand : I need to remove the space of colored elements from the white part.
So why the blue is correctement printed ?
You can see the file here
medailleFScience_scad

 

Posted : 17/02/2026 3:53 pm
Showy07
(@showy07)
Member
RISPONDI: Strange multimaterial slicing

Bonjour,

j'ai téléchargé le 3mf et j'ai importé en tant que projet dans Prusa Slicer. Après le découpage, j'ai juste un souci de couleur vert et rouge sur le cgenial et le rouge face plateau.

J'ai repris le pinceau en coloriage intelligent sur les couleurs qui manque et tout est ok après le découpage.

Posted : 17/02/2026 4:09 pm
FoxRun3D
(@foxrun3d)
Illustrious Member
RE: Strange multimaterial slicing

Drag the blanc part to the top of the list.

 

Formerly known on this forum as @fuchsr -- https://foxrun3d.com/

Posted : 17/02/2026 4:59 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Strange multimaterial slicing

or change the red, Blue and Green parts to 'Modifiers'
medailleFScience_scad jt

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 17/02/2026 5:28 pm
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