What are the benefits of the new Cura 5 slice engine?

The biggest and most exciting improvement in Ultimaker Cura 5.0 is a revolutionary new slicing engine. This slicing engine allows for variable line width, what does that mean in practice? Below you will find a summary of these benefits.

Tip: If you wish to make changes to the printing strategy of walls, please follow these Cura 5 specific setting guides, before visiting the wall settings article.

More efficient prints

  • Gaps between walls are filled in an efficient way
  • Reduces print head vibrations in certain cases
  • Reduces travel and printing time
  • Reduced print time from 0% to 20%, heavily depending on 3D printed part


Left: Cura 4.13, showing holes between the walls and sporadic fills in the cylindrical part.
Right: Cura 5.0, closed walls and no holes.

Print finer features

  • Line widths can be decreased, without changing the nozzle
  • Line widths can be varied, improving the printer flow throughout the print

This 3DBenchy has been sliced in a 20%, 15% and 10% scale, with a 0.4mm nozzle.

Ultimaker-cura-4-13-benchy.png Ultimaker-cura-5-0-benchy.png
Benchy sliced in Cura 4.13 Benchy sliced in Cura 5.0

Stronger 3D prints

  • Gaps are always filled, no matter the tolerance on the printed part
  • Strength gained only in printed walls, heavily depending on 3D printed part

Left: Cura 4.13, showing filled walls with lots of small lines, causing holes and vibrations.

Right: Cura 5.0, long lines flowing and closing the holes nicely.


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