It's a little frustrating because when I asked what model you printed you gave us 3 links. 3. And the first link had 2 different models. Am I supposed to check 6 models? I checked the first model and it wasn't the model you printed but it sliced fine for me. Next time please post a photo of the model you printed, post the SAME SETTINGS of that model and post a link to the stl and if there are multiple STLs then say which one.
I also specifically told you that spiralize was likely a problem. I even showed you a photo of the spiralize setting and circled it in blue yet you still checked it seemingly ignoring my advice. Then you post photos of cura slicing a model just fine. It's all quite confusing and inconsistent.
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gr5 2,157
This is not recommended for the STL model I downloaded. However it *is* recommended for others. I guess you have to understand how that works.
This only works for very simple shapes. Lets start with a cylinder. The cylinder should be modeled solid with a top a bottom and sides. It should not have inner surfaces in the STL. Sprialize then automatically prints the part hollow. It's kind of like setting "no infill, no top", but it's more than that. It prints only one pass on the outer edge. If you set the shell thickness to .8mm and your nozzle diameter is .4mm it will overextrude by 2X to get it on a single pass. It also adds extra material where the wall and the bottom of the part meet to keep it watertight. It also increases the Z gradually instead of in steps so that you don't get a Z seam. If you print 2 cylinders at once it will not work correctly. If you have "holes" in your cylinder it will mess up really badly. It will not work with the "bud vase" that I downloaded. This is because that is not a simple solid shape - it has internal walls and no top. It defines the thickness of the walls of the vase in the STL. It defines the thickness of the bottom also.
So "spiralize" is very very specific. It is meant for cups and vases only and it only works for certain models that are designed to work with the Spiralize feature.
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