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It's just the nature of FDM printing. What is likely happening is that the points are coming to "knife edges" and once the width of the knife edge falls below the "minimum line width", Cura knows the nozzle can't extrude it and so it is ignored. The problem with knife edges is that the necessary line width approaches 0.0000 and the smaller the included angle the more model gets excluded.
You could make an adjustment to the model to ensure that the "point" is at least a nozzle width across.
Just for a test, make your line width 0.10 and you should see the points get closer together. Make the line width 1.0 and you should see the gap get bigger.
None of the triangles actually complete. The narrow one is only 0.8 at the base so a lot of it just won't slice because it gets too narrow. This is with a 0.40 line width.
This is with a 1.0 line width and nozzle. The narrow triangle disappears.
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Here comes Cura 5.9 and in this stable release we have lots of material and printer profiles for UltiMaker printers, including the newly released Sketch Sprint. Additionally, scarf seams have been introduced alongside even more print settings and improvements. Check out the rest of this article to find out the details on all of that and more
We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
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GregValiant 1,455
It's just the nature of FDM printing. What is likely happening is that the points are coming to "knife edges" and once the width of the knife edge falls below the "minimum line width", Cura knows the nozzle can't extrude it and so it is ignored. The problem with knife edges is that the necessary line width approaches 0.0000 and the smaller the included angle the more model gets excluded.
You could make an adjustment to the model to ensure that the "point" is at least a nozzle width across.
Just for a test, make your line width 0.10 and you should see the points get closer together. Make the line width 1.0 and you should see the gap get bigger.
None of the triangles actually complete. The narrow one is only 0.8 at the base so a lot of it just won't slice because it gets too narrow. This is with a 0.40 line width.
This is with a 1.0 line width and nozzle. The narrow triangle disappears.
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