Discover Ultimaker Cura 3.2

Discover Ultimaker Cura 3.2

  • Written by Matt Jani
    Feb 14, 2018
  • Category:
    / News

The beta testing period is over, and we are proud to present the stable release of Ultimaker Cura 3.2.

In this version of Ultimaker Cura, we have optimized the UI so that there is less strain on your GPU with backface culling, added new UI elements that allow the creation of meshes inside the per model settings, and reduced startup time even further by only loading necessary profiles.


Ultimaker Cura 3.2.1 is now available. This minor update fixes several bugs from version 3.2, including:

  • Font rendering issues in MacOS
  • Minor translation improvements
  • Startup issues

Enhanced slicing features

Adaptive layers. Until now, slicing has been limited to a fixed layer size. Adaptive layers offers an alternative, where layers are printed a variable thickness which adapts to the angle of the model’s surfaces. The slicing algorithm assigns a narrower layer height to sloped surfaces, and a wider layer height to vertical surfaces. The result is a high-quality surface finish, at the cost of a marginally increased print duration. This setting can be found under the experimental category.

Adaptive layers
The 'Layer thickness' color scheme, which can be found in 'Layer view' mode, enables you to preview the layer thickness of the printing strategy. A color map ranging from yellow (thickest) to blue (narrowest) represents the relative thickness of each layer.

Tree support. Tree support is an experimental support method which uses ‘branches’ that ‘grow’ and multiply towards areas that need support, with fewer points of contact on the model, giving better surface finishes. This makes it ideal for organically-formed prints. It is possible to use tree support in tandem with other support methods.

Tree support
Tree support can be used on organically-formed objects.

UI elements

Multi-build plate. By enabling multi-build plate in the software preferences, a new panel is added to the workspace which lets you manage separate build plates with shared settings in a single session. Each separate build plate will be added to the print queue in Cura Connect. This eliminates the need to clear the build plate multiple times, for better scaling of operations, and maximized uptime.

Multi build plate
Slice for multiple build plates in a single session.

Faster startup. Printer definitions are now loaded when adding a printer, instead of loading all available printers on startup, reducing the startup time compared to previous versions.

Meshes in per model settings. Extra options have been added to the per model settings, providing simplified methods to assign models to print as meshes. When in Custom mode, this can be used to assign different slice settings to different sections of your print, e.g. a mesh as custom support when automatically generated support material is not placed where you might like.

A drop-down list allows you to specify what the mesh does:

Normal model - prints mesh as a normal model.

Print as support - mesh will be printed as support material.

Don't overlap support with other models - support material will not be generated in areas that mesh overlap.

Modify settings for overlap with other models - mesh will be printed in place of model in sections that mesh overlap.

Modify settings for infill of other models - mesh will be printed as infill in sections that mesh overlap.

Modify settings for infill of other models
Modify settings for infill of other models

This carabiner is sliced with a cuboid mesh with 'Modify settings for infill of other models' selected. The mesh has been assigned denser infill settings compared to the rest of the model, giving the overlapping sections greater durability.

Backface culling. Performance has been boosted in the layer view by only rendering visible surfaces of a model, instead of rendering the entire model. The result is a significantly improved frame rate, and reduced GPU strain.

Updated sidebar to QtQuick 2.0. The application framework has been updated to increase speed, achieve a better width and style fit, and gives users drop-down menus that are styled to fit the enabled Ultimaker Cura theme, instead of the operating system’s theme.

Hide the sidebar. The sidebar can now be hidden or shown by selecting View > Expand/Collapse Sidebar, or with the hotkey CMD + E (Mac) or CTRL + E (PC and Linux). This is to give greater visibility for wider build plates, or a build plate displayed on a small screen.

Hide sidebar
Hide the sidebar to get a better view

Disable ‘Send slice information’. A shortcut to disable ‘Send slice information’ has been added to the first launch to make it easier for privacy-conscious users to keep slice information private. Clicking the disable button will take the user to the preferences, where they can edit preferences accordingly.

Signed binaries (Windows). For security-conscious users, the Windows installer and Windows binaries have been digitally signed to prevent “Unknown application” warnings and virus scanner false-positives.

Start/end gcode script per extruder. Variables from both extruders in the start and end gcode snippets can now be accessed and edited, creating uniformity between profiles in different slicing environments.

View optimization. Quick camera controls that were introduced in version 3.1 have been revised to create more accurate isometric, front, top, left, and right views.

Quick camera controls
Quick camera controls

OctoPrint plugin added to plugin browser. This plugin has moved to the plugin browser. This plugin enables printers managed with OctoPrint to print via Ultimaker Cura interface (version 3.2 or later).

Bug fixes

With the help of our community, we have fixed incompatible Mirror tool and Center model settings, fixed a bug when configuration files were located on a remote drive, updated the packaged Arduino drivers to prevent issues updating the Ultimaker Original, and optimized the Auto-arrange all models option, for reliable positioning of multiple small models on the build plate.

Download now

We’d like to thank all of our beta testers for helping us to test this release, and a special thanks to fieldOfView for his contributions.

Download Ultimaker Cura 3.2 today to explore the benefits, and don’t forget to give us your feedback on the Ultimaker community!