Whatever layer width you chose, that would be the width of every line, throughout your whole print. It was also possible to increase or decrease the flow rate of your nozzle, meaning that more, or less, material would be pushed through the nozzle, affecting the layer width. Want less noticeable layer lines? Use a smaller nozzle. If you wanted faster print times, you could change to a nozzle with a larger diameter with the tradeoff that your print would be less detailed and would have more noticeable layer lines. In the past, when slicing a file, the width of a line depended on the width of your nozzle and your settings. However, until now, all the most widely used slicers have had one unfortunate weakness. Decreasing print times and improving the quality of the final printed parts. Modern slicers (Ultimaker Cura included) have gotten better and better at making these toolpaths more efficient and effective. Simple tweaks to common settings like the number of outer walls, infill pattern and density, and whether supports are used, can fundamentally change the toolpath of any given layer. How it does this depends on the settings chosen and the slicing algorithm used. Each of those layers is then interpreted by the slicing software and turned into a toolpath. It breaks a digital 3D model into a stack of flat layers, each a fraction of a millimeter thick. Most slicing software, including Ultimaker Cura, work in fundamentally the same way. Those instructions tell your printer where to move the toolhead, how much material to extrude, and what temperature to do it at, amongst many other things. ![]() ![]() It’s what allows it to turn a digital 3D model into a simplified set of instructions that your FFF printer can read and understand (G-code). ![]() The slicing engine is the heart of our software. The secret weapon of Ultimaker Cura 5.0 is our new slicing engine and its one biggest trick, variable line width.
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