Cura 2.3 Beta release

Cura 2.3 Beta is here!

  • Written by Lana Lozova
    Sep 1, 2016
  • Category:
    / News

We are always working with our customers and community contributors to bring you the best in 3D printing hardware and software. And today, we’re excited to present you the new Cura version. It’s still in the beta phase, but it provides more flexibility and handy features that our users demand.

Major improvements

Speed. The first thing you will notice with Cura 2.3 Beta is the speed. STL loading is now 10 to 20 times faster, layerview is significantly better, and slicing speed is also slightly improved.

Multi Extrusion Support. Machines with multiple extruders are now supported. If you have the Ultimaker Original with the dual extrusion upgrade kit, we’ve got you covered.  

Custom Machine Support. The new custom machine plug-in allows you to change machine settings with ease. That means it’s now much easier to use Cura with modified Ultimakers or custom machines.  

Improved Position Tool. Place objects precisely where you want them by manually entering the values for the position.

Improved Grouping. It's now possible to transform objects that are already grouped. Select an individual item in a group or merged object and edit as usual. Just Ctrl + Click and edit away.

Enhanced Profile Management. Profile management is improved. You can now easily see and track changes made to your profiles.

Improved Setting Visibility. Make multiple settings visible at once. The Visibility Overview setting indicates why a setting is not shown in the sidebar even if it is selected.

Improved Time Estimation. Time estimations are more accurate.

Optional G-code Machine Prefix. Disable the g-code prefix in Preferences. No more UM2_ on your printer display!

Print Weight Estimates. Cura now estimates print weight as well as length.  

Automatic Import Configuration. Configurations from older installations of Cura 2.1 are automatically imported into the newest installation.

What's new in Cura 2.3 Beta
New Cura 2.3 Beta cubic infill
New-New Cura 2.3 Beta bridging feature

New and improved slicing features

Infill Improvements. Cura 2.3 Beta introduces two infill types: Tetrahedral and Cubic. They change along with the Z-axis for more uniform strength in all directions. Also, you can change the density of the infill based on the distance from the top layers. Print faster, use less material, and maintain the same object strength.

Set Acceleration and Jerk by Feature. You can now set Jerk and Acceleration by feature, (infill, walls, top/bottom,) for more precision.

Outer Wall Offset. Apply an offset to where the outer wall is printed for better surface quality when the outer wall line width is smaller than the nozzle size.

Enhanced Combing. The “No Skin” option allows you to comb over infill only to avoid scars on top surfaces.

Z Hop. Can’t avoid previously printed parts by horizontal moves? The Z Hop Only Over Printed Parts gives you the ability to Z Hop to avoid collisions for better surface quality.  

Skin and Wall Overlap. The Skin Overlap setting allows you to overlap the skin lines with the walls for better adhesion between the walls.

Support Bottoms. This new feature duplicates the Support Roofs in the places where the support rests on the model.

Bug fixes and minor updates

Bug Fixes. Our users and community members were quick to identify bugs in the last release. Here are some of the key bug fixes we made:

  • Deleting grouped objects
  • Duplicating groups
  • Bridging
  • Unretraction speeds
  • Drag and drop on the first run on windows
  • Line distance is now the actual line distance
  • Undo and Redo with multiple operations
  • Post Processing plugin
  • Overlap Compensation

Minor Enhancements. The enhancements may be minor, but you will appreciate the results. You can now adjust the speed at which the bed is lowered by layer. We’ve also removed the string plume on top of one-at-a-time printed objects and combing is applied in more cases for better paths. Infill Thickness now supports Grid Infill for multiples of layer height and Compensate Overlapping Wall parts now works for inner walls.

Communication Improvements. Messages are now displayed for 30 seconds. You will get a new notification if you try to save to a locked SD card. Engine log can be viewed even when slicing is finished. There is a new warning icon near the Save G-Code button and the last folder used is now remembered (home folder is no longer the default one).

Brims, Skirts, and Rafts. Rafts print inside build area. Enabling raft doesn’t influence height at which the model is sliced. Brim now generated under the support. Shared settings between skirt and brim activate when brim is selected.

Supports. Support is no longer generated by thin parts in the model which are too small for Cura to slice. Support doesn't exceed overhang areas. Support roofs now only generate directly below the mesh.

Spiralize. The spiralize mode no longer spiralizes the bottom layer and each part is now spiralized in a layer.

Maintenance and Set-Up. Bed Level and Checkup procedures for the Ultimaker Original+ can now be done without re-adding machine and it’s possible to add multiple Per Model Settings at once.