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Cura 4.8 overhang difference to Cura 4.7


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Posted · Cura 4.8 overhang difference to Cura 4.7

Hi all,

 

just asking if someone stumbled over the same issue as me this morning while updating to Cura 4.8? As you can see in the attached image the same object shown in 4.7.1 does not display any overhang promblem zones. I printed the object already twice without support so it works fine in 4.7.1. Did something change in the 45° display rule? When I change degree values in the "build support" settings it has influence on where it generates them but is not changing the red warning display.

 

cura4_8_overhang.jpg

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    Posted · Cura 4.8 overhang difference to Cura 4.7

    So I did a few tests and it looks like both versions are more or less having the same "problem". I designed this model pushing the 45° borders to the limit. Meaning I jumped forwards and back from Blender to Cura to stay beneath the 45° angle and it looks like I created a model that gets newly interpreted with every import (without changing the model) whether it is within the 45° rule or not. Sometimes it is and sometimes it's not. I did some analyses with Blender (it has a neat plugin for checking data for 3d print) and indeed there are around 70 faces above 45°. So now I am a little unsure concerning what I actually see in Cura regarding the warning display of print models.

     

    Has anyone in the community made long term experiences with that part of Cura?

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    Posted · Cura 4.8 overhang difference to Cura 4.7

    What is Cura telling you when you open the stl file? This looks like you have a problem with your model.

     

    Anyway, I like to add a thought I had as this happens in 95% of user requests for help here:

    It is good practice to attach a project file so that one who want to help can have a close look to your model and your slicer setup. Without this it is often not possible to give you an good answer, as most of people havn't a magic crystal ball. I too still try to find one. 🙂

     

     

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    • 1 month later...
    Posted · Cura 4.8 overhang difference to Cura 4.7

    My best guess so far is that the model subdivisions slightly differ with every export as stl from blender and import into cura... have not encountered the problem again until now but thanks for the help offering.

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