New Cura 2.4 release notes

What’s new in Cura 2.4?

After considerable development, we’re excited to announce that the latest, improved version of Cura is now available. Read on to find out what to expect from Cura 2.4.

Major improvements

The latest version of Cura has been updated, and now performs even better than ever. Here are the key improvements you need to know about.

Project saving / opening. Cura 2.4 now lets you save your build plate configuration, which includes all your active machine’s meshes and settings too. Even more conveniently, when you reopen your project file, you’ll see that all build plate configurations and settings are exactly as you left them when you last saved the project.

Search Settings. Need to tweak a setting in a hurry? It’s now easy to search custom settings via the side panel.

Editing start / end g-code. If you need to alter the start and end g-code settings for your single-extrusion machines, the new Cura 2.4 lets you do just that.

Multiply object function. We know that duplicating an object multiple times can be a hassle, so we’ve made life easier for you. Simply right-click an object, and you can multiply it by a variable amount.

Single-extrusion prints. Your Ultimaker 3 dual-extrusion printer now lets you do single-extrusion prints within a larger printable area.

Streaming printer monitor view. Selected camera snapshots don’t really tell you much about how your print project is progressing. Now, you’ll be able to follow every second of your 3D print (if you want to), using the live streaming function. It’s an effective way to minimize errors while printing.

Slicing disabled? Now you’ll know why. It’s a bit frustrating when your slicing is blocked by settings with error values, but you don’t know which settings to change to make things right again. Now, a message will appear, clearly outlining what needs to be done to get your print back on track.

Ultimaker 3 printing profiles. The initial and final printing temperatures reduce oozing during PLA/PLA, PLA/PVA and Nylon/PVA prints. This means printing a prime tower is now optional (except for CPE and ABS, which we’re working on). The new Ultimaker 3 printing profiles boost reliability and reduce print time.

Initial layer printing temperature. We’ve fine-tuned the initial and final printing temperatures, to achieve a higher quality end-result.

Material printing temperature. The material printing temperature (in the material profiles) is now the same as the printing temperature for the Normal Quality profile.

Improved PLA/PVA layer adhesion. It’s important to get good layer adhesion between the PVA and PLA. That’s why we’ve now optimized the PVA jerk and acceleration.

Nylon – default build plate adhesion type. We’ve now changed the default build plate adhesion type for Nylon prints – from raft to brim.

Support Interface Thickness. To reduce printing time, we’ve changed the Support Roof Thickness to 0.8mm, and slightly decreased the PVA support infill.

Ultimaker 2+ PC prints. The raft settings for the 0.25mm and 0.4mm nozzles have been adjusted in the polycarbonate profiles – which means less warping and better print results.

Open project in Cura 2.4
Search custom settings in Cura 2.4

Slicing features

Additionally, the new Cura 2.4 has a host of exciting new slicing features. Here are some more details:

Hollow prime tower. If you print the prime tower hollow, this minimizes material use and boosts stability. Wiping oozing material on the prime tower is now done from the inside, which means the excess material is contained within.

Precooling / Prewarming. Printing now starts at a lower temperature, then increases swiftly to normal printing temperature. We’ve also adjusted the system to make sure that cooling commences before then the last extrusion (for the print core in question). This minimizes the material’s heat absorption, which in turn, reduces PVA degradation. It also means less risk of clogged nozzles, which makes life a lot easier!

Remove Mesh Intersection. If required, you can now switch off resolving of overlapping meshes. Models can now overlap, which means you can mix colors on the build plate by placing meshes over one another and lowering their flow.

Alternate Mesh Removal. For areas where two models overlap, you can now let each layer of the overlapping volume alternate (depending on which object the overlapping area of that layer belongs to). This boosts bonding between dual-color models, and results in better control of build plate color mixing.

Hollow Object. If you want to, you can remove the infill from a mesh and treat internal cavities as overhangs, which creates better support in the model’s interior. This also reduces the amount of material required on the inside of your print.

Fill Gaps Between Walls. Fill small gaps between consecutive walls to make thin areas dense rather than hollow – adding strength to your model.

Cubic subdivision infill. This experimental new infill pattern works on a similar basis to cubic infill – but generates larger cubes further inside the mesh. It’s a great way to reduce material use and cut your print time, whilst maintaining structural integrity.

Concentric 3D infill. We’ve added a new infill pattern, which is similar to concentric infill, but touches the shell every X layers, creating better support for the top layers.

Cubic subdivision infill feature in Cura 2.4

Extra features

Here are some other great features designed to improve your printing experience:

  • Printing Temperature Initial Layer – You can now determine the nozzle temperature during the first layer.
  • Build Plate Temperature Initial Layer – You can also determine the bed temperature during the first layer.
  • Initial Fan speed – Select the fan speed for the first layer, for better print results.
  • Retract at Layer Change – You can choose to retract each time the printer moves to the next layer.
  • Outer Wall Wipe Distance – Wipes the nozzle after printing an outer wall.
  • Set X-Y coordinate of Z seam – You can select where to place the Z seam.
  • Start Layers with the Same Part – Start each layer with the part closest to a selected location.
  • Turn off nozzle after last use – Switch off the nozzle after its last use, while the other nozzles are still in action.
  • No build plate adhesion – If required, you can select not to print any build plate adhesion helper parts.
  • Anti-overhang and support meshes – Use a mesh to specify a volume within which to classify nothing as overhang for support, or to specify a volume within which to print support.
  • Delta printer support – This supports printers with elliptical build plates. Please note, we haven’t extensively tested this yet, and any feedback would be greatly appreciated.
  • Applmage for Linux – The Linux distribution is now in Applmage format, which makes Cura easier to install.

Prime tower option in Cura 2.4

Bug fixes

  • New Cura notification – You’ll now be notified when a new version of Cura becomes available.
  • Category visibility – When searching in the setting visibility preferences, the setting category is always displayed.
  • 3MF files – 3MF files are now saved and loaded correctly.
  • Drag and load – Dragging a profile onto Cura now loads it automatically.
  • View print core / materials – It’s easy to view which print cores and materials are currently in your Ultimaker 3, via the machine manager.
  • Add heated bed upgrade – You can add the heated bed upgrade (and other things) from the machine manager.
  • Print core / material under extruder tabs -These are now arranged under the extruder tabs.
  • Saved printers / profiles – Cura automatically remembers all printers and profiles when you open it (just after closing it).
  • Duplicate profiles – You can now duplicate all standard profiles.
  • Layer view changes – Layer view uses less RAM.
  • Quicker Support Enable setting changes – It’s far quicker to change the Support Enable setting values.
  • Dependent setting changes – Changing one setting now updates all dependent settings more quickly.
  • Slicing block -  If there are any errors in your setting values, slicing is automatically blocked.
  • Active tools, no more re-slice – Selecting a model with any active tool no longer causes a re-slice.
  • Prime poop changes – The prime poop now features a separate area (which cannot be printed in).
  • Adjusted Support Extruder setting – We’ve moved the Support Extruder setting near the support settings.
  • Adjusted Build Plate Adhesion Extruder setting – The Build Plate Adhesion Extruder setting is now near the build plate adhesion settings.
  • Z Hop setting location – Z hop settings have been moved to the Travel category.
  • Inactive nozzle wiping – Inactive nozzle wiping on the prime tower has now been re-enabled.
  • Support retraction removal – There are now no longer any unnecessary retractions in support.
  • Reduced extruder switches – Each layer now has less extruder switches than the machine has extruders.
  • No concentric infill for first infill perimeter – Concentric infill doesn’t generate the first infill perimeter next to the walls.
  • Extruder priming for the first layer – Extruder priming now always happens on the first layer.
  • Ultimaker 2 build plate speed – Ultimaker 2’s build plate raise is now the proper speed again.
  • Ultimaker 2 material change – Ultimaker 2 can once again change material while printing is paused.

Note: When upgrading Cura, the configuration settings might be irreversibly changed. We are working on the solution. Meanwhile, to ensure you don’t lose any customized settings, we recommend to back up your configuration folder before installing the latest version of Cura. The configuration folder can be found here: 

  • Windows: C:\Users\{USER}\AppData\Local\cura
  • MacOS: ~/Library/Application Support/cura
  • Linux: ~/.config/cura

Learn more!

To find out more, you can read the quick start guides, or browse our troubleshooting pages here.

The latest version of Cura has an incredible range of new features, designed to empower your 3D printing and make life even simpler than before. Go ahead and download Cura 2.4 now!

1 reply

R
Ramarosa Anonymous User
Posted by
R
Ramarosa

Posted Feb 23, 2017 - 6:05 AM

Did you forget to mention metric to inch conversion ?

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