6 hours ago, assafp said:
I've looked at every forum thread I could and made all the recommended changes and still the problem persists. Thanks in advance for the help, I'm 1 week into 3d printing.
This are only faces with zero volume.
The crux is: a non-manifold geometry can not be printed. Most slicers try it anyways, but the result is usually not what you expect. Some hints:
Designing for "real world things" is very different from the "just for visualization" - approach.
If you design functional parts a good CAD program would be the better choice (as @geert_2 said).
For this simple example you can either:
- in Blender: close the top and the bottom with faces and in Cura: set top and bottom thickness to zero and choose a reasonable wall thickness
- use the "Solidify" modifier in Blender and define the thickness of the outer wall this way
There's a builtin add-on in Blender called "3D Print Toolbox". It can check models for several error types.
Tiny holes (e.g. <1mm) tend to get filled up because the molten filament is pulled inwards into the curve, like when you try to pull a rubber band into a circle.
But most likely your model is defective, and has unwanted surfaces on top and bottom? So you might need to correct that in Blender, or run the STL through a repair-program. But I have no experience with this, so I can't give recommendations. When designing in DesignSpark Mechanical, I never had such problems, it always produced good STL files.
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