Ultimaker Cura 4.10.0

4.10.0

For an overview of the new features in Cura 4.10, please watch our video.

Native CAD import plugin
Ultimaker Professional and Excellence subscribers can now directly import native CAD files into Ultimaker Cura.
Enable this feature by downloading the Native CAD import plugin from the Ultimaker marketplace.

Flow visualization
In preview mode you can now visualize the flow. Contributed by @khani3s.

Show loading plugins on startup
When starting Cura you will now see which plugins Cura is loading.

Add Z position parameter to FilamentChange
With the FilamentChange script you can now control all 3 coordinates.

Allow FilamentChange script to use Marlin M600 configuration
Contributed by @Sekisback.

Double click on file in Digital Factory
When double clicking on a file in the open project dialog in Digital Factory it will now open in Cura.

Bug Fixes

• Fixed temperature exceptions for UM2+C material profiles.
• Fixed a bug where pause at height stops all extrusion if relative extrusion is used.
• Fixed authentication issues when logging into UM account. Contributed by @fieldOfView.
• Fixed the pause-at-height retract with Repetier-flavour.
• Fixed erasing z-coordinate in the move tool to the value of 0.
• Fixed the limit range of layer view to only visible structures.
• Fixed a bug where Cura crashes when scaling a model on Linux.
• Fixed path minimum limit.
• Fixed a bug when using right to left language numbers were overlaying on text in the print settings.
• Fixed edge case with disabling bridging.
• Fixed a bug where some names with Unicode characters crashes Cura when trying to authorize.
• Fixed renaming groups. Contributed by @fieldOfView.
• Fixed a bug when the seam was not placed in sharpest corner.
• Fixed the gantry height for S-line printers.
• Fixed a bug where a model is partially below build plate if center selected model is used.
• Fixed a bug where a tootip arrow appeared when the "Manage printers" button is hovered.

Printer definitions, profiles and materials.

• Add CC0.4 core and materials for S3 and S5.
• Updated Axi machine start gcodes, contributed by @synsuiter.
• Volumic 3D printer definitions, contributed by @VOLUMIC.
• Anycubic Mega X and Anycubic Mega S, contributed by @NilsRo.
• Updated Deltacomb printer profiles, contributed by @kaleidoscopeit.
• eMotionTech Strateo3D materials and profiles, contributed by @ChronosTech.
• Sovol SV03, contributed by @balacij.
• Two Trees Bluer, Bluer Plus, Sapphire Pro and Sapphire Plus, contributed by @Lester3DGadgets.
• Update Skriware 2, contributed by @Lukkoz.
• Longer LK1, LK1 Pro, LK1 Plus, LK4, LK4 Pro, LK5, LK5 Plus and Cube 2, contributed by @lowkeyjoe.
• Mingda D3, D4 and Rock3, contributed by @cataclism.
• JGAurora A6, contributed by @CrissR.

Ultimaker Cura 4.10.0-BETA

4.10.0-BETA

Native CAD import plugin
Ultimaker Professional and Excellence subscribers can now directly import native CAD files into Ultimaker Cura.
Enable this feature by downloading the Native CAD import plugin from the Ultimaker marketplace.

Flow visualization
In preview mode you can now visualize the flow. Contributed by @khani3s.

Show loading plugins on startup
When starting Cura you will now see which plugins Cura is loading.

Add Z position parameter to FilamentChange
With the FilamentChange script you can now control all 3 coordinates.

Allow FilamentChange script to use Marlin M600 configuration
Contributed by @Sekisback.

Double click on file in Digital Factory
When double clicking on a file in the open project dialog in Digital Factory it will now open in Cura.

Bug Fixes

• Fixed temperature exceptions for UM2+C material profiles.
• Fixed a bug where pause at height stops all extrusion if relative extrusion is used.
• Fixed authentication issues when logging into UM account. Contributed by @fieldOfView.
• Fixed the pause-at-height retract with Repetier-flavour.
• Fixed erasing z-coordinate in the move tool to the value of 0.
• Fixed the limit range of layer view to only visible structures.
• Fixed a bug where Cura crashes when scaling a model on Linux.
• Fixed path minimum limit.
• Fixed a bug when using right to left language numbers were overlaying on text in the print settings.
• Fixed edge case with disabling bridging.
• Fixed a bug where some names with Unicode characters crashes Cura when trying to authorize.
• Fixed renaming groups. Contributed by @fieldOfView.
• Fixed a bug when the seam was not placed in sharpest corner.
• Fixed the gantry height for S-line printers.
• Fixed a bug where a model is partially below build plate if center selected model is used.

Printer definitions, profiles and materials.

• Add CC0.4 core and materials for S3 and S5.
• Updated Axi machine start gcodes, contributed by @synsuiter.
• Volumic 3D printer definitions, contributed by @VOLUMIC.
• Anycubic Mega X and Anycubic Mega S, contributed by @NilsRo.
• Updated Deltacomb printer profiles, contributed by @kaleidoscopeit.
• eMotionTech Strateo3D materials and profiles, contributed by @ChronosTech.
• Sovol SV03, contributed by @balacij.
• Two Trees Bluer, Bluer Plus, Sapphire Pro and Sapphire Plus, contributed by @Lester3DGadgets.
• Update Skriware 2, contributed by @Lukkoz.
• Longer LK1, LK1 Pro, LK1 Plus, LK4, LK4 Pro, LK5, LK5 Plus and Cube 2, contributed by @lowkeyjoe.
• Mingda D3, D4 and Rock3, contributed by @cataclism.
• JGAurora A6, contributed by CrissR.

Ultimaker Cura 4.9.1

This is a patch release fixing some important bugs and adding new profiles.

PETG Profile update.
Ultimaker PETG profiles have been added. The Generic PETG profile for 2.85mm filaments has been updated as well.

Bug Fixes

• The second extruder should now prime properly again when using a prime blob.
• Reduced the flood of QML errors in the log file. Contributed by fieldOfView.
• Fixed a crash when entering layer view on MacOS 10.13.6. Contributed by jwrw.
• Fixed a crash when there was an inaccessible X: drive in Windows. Cura should no longer try to access the X: drive now.

4.9

Ultimaker Cura 4.9.0

Want more information for Ultimaker Cura 4.9?
Read the blog post or watch the video. And don't forget to give us your feedback!

Highlights

Digital factory integration.
Now you can open files directly from Digital Library projects. Then, after preparation, quickly and easily export them back. This feature is available for all users with an Ultimaker Essentials, Professional, or Excellence subscription. Learn more

"Line type" is now the default color scheme.
When entering the Preview mode, you don't have to switch manually to line type.

Z-seam is now clearly shown in preview mode.
This ensures that you will know whether the seam will be sufficiently hidden in the end product. This will also indicate the starting point of the print.
Thanks to @BasF0 for contributing to this feature

Other Features

New 'line width' color-scheme available in preview mode.
Line-width can now be selected as a color-scheme in preview mode.
Thanks to @Ghostkeeper for contributing to this feature

Weight estimation in decimals.
This provides a more detailed idea of the amount of material used - which is especially useful for smaller prints.

Split Shell category into Walls and Top/Bottom.
The shell category was a mix of settings about walls and settings about top/bottom, splitting them into two categories makes more sense.

Post-processing script to embed screenshot in gcode.
The ability to have thumbnails embedded.
Contributed by @Gravedigger7789.

Add checkbox for Extruder Offsets.
Ability to enable or disable the extruder offsets to gcode. This will be enabled by default unless it is in the printer's def.json file.
Contributed by @RFBomb.

Cura should work properly on MacOS 'Big Sur' now, afforded by upgrades to Python (to 3.8) and Qt (to 5.15).
If you had (UX, visual, graphics card) problems, specifically on (newer) MacOS versions, like Big Sur, you should be able to use this new version.

Bug Fixes

• Fixed a security vulnerability on windows permitting the openssl library used to launch other programs. Thanks to Xavier Danest for raising this bug.
• Fixed Connect Top/Bottom Polygons.
• Fixed closing Marketplace after quitting Cura.
• Fixed clicking on Marketplace button to go to web Marketplace.
• Fixed Pause at Height when using Repetier flavour. Contributed by @EGOiST1991.
• Fixed correct density for current PETG filaments. Contributed by @kad.
• Fixed Pause at height post-processing script that returns to the right position.
• Fixed layer view being grayed out after reslicing. Contributed by @Ghostkeeper.
• Fixed fan speed issue due to reuse of empty extruder plan.
• Fixed loading OBJ files with no texture references, but does have normal references.
• Fixed retraction/priming while extruder switches. Contributed by @sisu70.
• Fixed loading script from all registered resource paths. Contributed by @fieldOfView.
• Fixed typeError: define_round_method. Contributed by @Sophist-UK.
• Fixed missing layer with Hole Horizontal Expansion.
• Fixed Tree Support Floor layers. Contributed by @ThomasRahm.
• Fixed Top Surface Skin Layers if Top layers = 0.
• Fixed recent files on opening as project.
• Fixed opening project file from command-line.
• Fixed thumbnail in UFP files.
• Fixed validator for floats in Machine Settings dialog. Contributed by @fieldOfView.
• Fixed recessed areas at the bottom of a model while using Make Overhangs Printable. Contributed by @OpusMcN.
• Fixed slicing grouped models if one of the group parts is below Z=0.
• Fixed material temperatures and fan speed for Anycubic i3 Mega. Contributed by @trunneml.
• Fixed drop model down to buildplate when always drop to buildplate is disabled.
• Fixed drop objects to buildplate after scaling.
• Fixed disallowed areas while using Brim Line Widths.
• Fixed message for non manifold models.
• Fixed setting category arrows. Contributed by @fieldOfView.
• Fixed metadata tags for 3MF files.
• Fixed engine crash when using low-density Cross Infill.
• Improved performance of loading .def.json files.

Printer definitions, profiles and materials

• 3DFuel Pro PLA and SnapSupport materials, contributed by @grk3010.
• Cubincon Style NeoA31, contributed by HUNIBESTHyVISION.
• Eryone thinker series and Eryone ER20, contributed by @Eryone.
• Flashforge DreamerNX, contributed by @KeltE.
• Fused Form FF300, contributed by @FusedForm.
• Geeetech A10 improved start and end gcode, contributed by @TheTRCG.
• ideagen3D Sapphire and ideagen3D Sapphire Plus, contributed by @Firedrops.
• INAT Proton X printers, contributed by @MarkINAT.
• Koonovo, contributed by @KOONOVO3DPrinter.
• Liquid, contributed by @alexgrigoras.
• Lulzbot TAZ Pro and Lulzbot Mini 2, contributed by @spotrh.
• Maker Made 300x printer, contributed by @skilescm.
• MINGDA D2, contributed by @cataclism.
• Snapmaker 2.0, contributed by @maihde.
• Sri Vignan Technologies, contributed by @venkatkamesh.
• Syndaver AXI Machine, contributed by @synsuiter.
• Tinyboy Fabricator Mini 1.5, contributed by @reibuehl.
• Trimaker printers, contributed by @tomasbaldi.
• TwoTrees Bluer, contributed by @WashingtonJunior.
• Update Hellbot Magna 1 and Hellbot Magna dual, contributed by @DevelopmentHellbot.
• Update Rigid3D and added Rigid3D Mucit2, contributed by @mehmetsutas.
• Update TPU profiles for 0.6mm nozzle of UM2+C
• ZAV series, contributed by @kimer2002.

4.9 beta

Ultimaker Cura 4.9.0 Beta

Highlights

"Line type" is now the default color scheme.
When entering the Preview mode, you don't have to switch manually to line type.

Z-seam is now clearly shown in preview mode.
This ensures that you will know whether the seam will be sufficiently hidden in the end product. This will also indicate the starting point of the print.
Thanks to @BasF0 for contributing to this feature

Other Features

New 'line width' color-scheme available in preview mode.
Line-width can now be selected as a color-scheme in preview mode.

Weight estimation in decimals.
This provides a more detailed idea of the amount of material used - which is especially useful for smaller prints.

Split Shell category into Walls and Top/Bottom.
The shell category was a mix of settings about walls and settings about top/bottom, splitting them into two categories makes more sense.

Post-processing script to embed screenshot in g-code.
The ability to have thumbnails embedded.
Contributed by @Gravedigger7789.

Add checkbox for Extruder Offsets.
Ability to enable or disable the extruder offsets to gcode. This will be enabled by default unless it is in the printer's def.json file.
Contributed by @RFBomb.

Various Mac OSX (and other) fixes afforded by upgrades to Python (to 3.8) and Qt (to 5.15).
If you had (UX, visual, graphics card) problems, specifically on (newer) Mac OSX versions, please try this new version.

Known UX issues that will be fixed before final in our current plan

• Custom menu Materials and Nozzle menu now open at cursor position instead of under the menu button.
• Visuals of Preference screen are large.
• Drop downs in Preference screen don't react to mouse-scroll.
• Default language not selected in Preference screen.
• Changelog takes long too load.
• Setting Visibility submenu items in the Preference screen are greyed-out and can't be selected on Mac OSX.

Bug Fixes

• Fixed a security vulnerability on windows permitting the openssl library used to launch other programs. Thanks to Xavier Danest for raising this bug.
• Fixed Connect Top/Bottom Polygons.
• Fixed closing Marketplace after quitting Cura.
• Fixed clicking on Marketplace button to go to web Marketplace.
• Fixed Pause at Height when using Repetier flavour. Contributed by @EGOiST1991.
• Fixed correct density for current PETG filaments. Contributed by @kad.
• Fixed Pause at height post-processing script that returns to the right position.
• Fixed layer view being grayed out after reslicing. Contributed by @Ghostkeeper.
• Fixed fan speed issue due to reuse of empty extruder plan.
• Fixed loading OBJ files with no texture references, but does have normal references.
• Fixed retraction/priming while extruder switches. Contributed by @sisu70.
• Fixed loading script from all registered resource paths. Contributed by @fieldOfView.
• Fixed typeError: define_round_method. Contributed by @Sophist-UK.
• Fixed missing layer with Hole Horizontal Expansion.
• Fixed Tree Support Floor layers. Contributed by @ThomasRahm.
• Fixed Top Surface Skin Layers if Top layers = 0.
• Fixed recent files on opening as project.
• Fixed opening project file from command-line.
• Fixed thumbnail in UFP files.
• Fixed validator for floats in Machine Settings dialog. Contributed by @fieldOfView.
• Fixed recessed areas at the bottom of a model while using Make Overhangs Printable. Contributed by @OpusMcN.
• Fixed slicing grouped models if one of the group parts is below Z=0.
• Fixed material temperatures and fan speed for Anycubic i3 Mega. Contributed by @trunneml.
• Fixed drop model down to buildplate when always drop to buildplate is disabled.
• Fixed drop objects to buildplate after scaling.
• Fixed disallowed areas while using Brim Line Widths.
• Fixed message for non manifold models.
• Fixed setting category arrows. Contributed by @fieldOfView.
• Fixed metadata tags for 3MF files.
• Fixed engine crash when using low-density Cross Infill

Printer definitions, profiles and materials

• 3DFuel Pro PLA and SnapSupport materials, contributed by @grk3010.
• Cubincon Style NeoA31, contributed by HUNIBESTHyVISION.
• Eryone thinker series and Eryone ER20, contributed by @Eryone.
• Flashforge DreamerNX, contributed by @KeltE.
• Fused Form FF300, contributed by @FusedForm.
• Geeetech A10 improved start and end gcode, contributed by @TheTRCG.
• ideagen3D Sapphire and ideagen3D Sapphire Plus, contributed by @Firedrops.
• INAT Proton X printers, contributed by @MarkINAT.
• Koonovo, contributed by @KOONOVO3DPrinter.
• Liquid, contributed by @alexgrigoras.
• Lulzbot TAZ Pro and Lulzbot Mini 2, contributed by @spotrh.
• Maker Made 300x printer, contributed by @skilescm.
• MINGDA D2, contributed by @cataclism.
• Snapmaker 2.0, contributed by @maihde.
• Sri Vignan Technologies, contributed by @venkatkamesh.
• Syndaver AXI Machine, contributed by @synsuiter.
• Tinyboy Fabricator Mini 1.5, contributed by @reibuehl.
• Trimaker printers, contributed by @tomasbaldi.
• TwoTrees Bluer, contributed by @WashingtonJunior.
• Update Hellbot Magna 1 and Hellbot Magna dual, contributed by @DevelopmentHellbot.
• Update Rigid3D and added Rigid3D Mucit2, contributed by @mehmetsutas.
• ZAV series, contributed by @kimer2002.

Arachne engine beta

Arachne engine beta

This is the beta release of Ultimaker Cura's "Arachne" engine. The objective is to fill the available space better with walls, reduce variability in flow rate, preventing gaps and overextrusion and improving path planning by implementing variable line widths. This allows for a more consistent print and better fit to the specifications of the original 3D model.

This is an outdated beta. Please refer to the Arachne engine beta 2

If you've tried this beta and want to give some feedback, please see the discussion here.

This is a second preview, bringing the engine to a more stable state than the alpha that was released in December. This release should be more appropriate to tune profiles within preparation for the stable release. The stable release will still have its own beta in the same fashion as the ordinary release cycle.

While the bugs and features that greatly influence print quality have been resolved and implemented, there are still some things left to do (see known issues). The profiles have hardly been tuned, even for Ultimaker's own printers. Please don't expect perfection. In fact, the default settings as they are now likely result in a worse print quality than the stable release.

Note: This is not based on a specific stable version of the front-end of Cura (like '4.8.0' or similar), so there may be issues that have been solved or introduced since then that have little or nothing to do with the variable line width feature-set!

New features in Arachne engine beta:

Line Width Color Scheme
A new color scheme has been added that shows the line width of individual lines in layer view.

Static Outer Wall
The outer wall will no longer adjust its width or position if there are any inner walls adjacent to it with the (inward) distributed line width strategy. This reduces ringing effects in thin shapes.

Bug fixes

• The Randomize Infill Start setting is now working on Arachne.
• The Infill Travel Optimization setting is now working on Arachne.
• The Infill Layer Thickness and Support Layer Thickness is now working on Arachne.
• Fix crash on MacOS when printing parts with a single wall.
• Fix crash when the model contains very small holes (~0.1mm).
• Fix crash when using Support Infill.
• Fix crash when the model contains faces that are almost exactly parallel.
• Fix crash when simplifying due to Maximum Resolution causes self-intersections to appear in the layer outline.
• Fix crash when multiple transitions come together in the same point.
• Fix crash when transitions between different numbers of walls connect the wrong two perimeters together.
• Infill and support layer thickness should no longer overlap with itself if gradual infill or gradual support is used.
• Only generate connecting wall segments for the sparsest density when using gradual infill or gradual support.
• Sharp corners in the infill volume will no longer be filled with a useless tiny infill line.
• Initial Layer Line Width now only applies to the initial layer again.
• When using Outer Wall Inset, there will no longer be a ridge when transitioning from 2 to 1 wall.
• Outer Wall Wipe Distance will no longer cause unnecessary travel moves.
• Concentric support interface patterns are no longer omitted.
• When Wall Line Count is 0, the rest of the model will no longer be omitted.
• When using different extruders for inner and outer walls, the extruders no longer alternate per layer.
• Small gaps between inner wall and skin are properly filled with infill again.
• Seam position when using Sharpest Corner set to "hide seam" now properly chooses the sharpest inner corner.
• Transitions are no longer omitted in very sharp corners, which sometimes led to too small line widths.
• The outline of the print is no longer shifted towards the bottom left by the Maximum Deviation setting.
• When using Alternate Extra Wall, the extra wall no longer overlaps with skin or infill.

Known issues

• Some models might still crash the engine, although it is less frequent than before.
• Infill support can crash the engine.
• The seam isn't positioned correctly when using the Hide or Expose or Smart Hiding placement options.
• User specified seam is not aligned.
• Paths for concentric ironing aren't generated.
• Concentric support pattern can intersects with model.
• Lines are not always symmetrical in width at the transitioning point to a lower wall count.
• Centerline is not generated for center deviation strategy.
• Missing infill/support walls in certain areas when using Extra Infill/Support Wall Count.
• Brim lines ordered wrongly.
• Raft interface layers and raft layers don't align.
• Connected infill and gradual infill results in overextrusion.
• Bottom Skin Expand Distance at zero causes skin to expand beyond walls.
• Spiralize could generate both inner and outer surfaces.
• Bottom layers of a spiralized model with surface mode enabled, looks like inner walls.
• Last bottom layer might disappear for a spiralized model.
• Stringing when spiralized is enabled.
• Fuzzy skin isn't implemented.
• Connect Top/Bottom polygons isn't implemented.

Arachne engine alpha

Arachne engine alpha

Cura Team, as part of and with help from Ultimaker R&D in a more general sense, have been working on a large project that changes the core of how our slicing engine works. The goal is to have variable line widths (instead of static) for each extrusion, and better path-planning, in order to better fit the eventual printed part to the specifications.

If after you've used this alpha you want to give some feedback (please do, it's the main reason we're doing this), please see the discussion here.

This effort is still ongoing, but we're at the point where we would very much like to have the feedback and input of the wider community.

In order to get this done, we've decided to release an 'Alpha' build, or an early preview.

Not everything has been implemented, and there are even an amount of known bugs (see below), as well as very probably a comparable amount of unknown issues. On top of that, we added some parameters (and removed a few others). These have hardly been tuned, even for our own printers, let alone 3rd party ones. In other words, don't expect perfection. In fact, the default settings as they are now are likely to be worse as what's there in a lot of cases.

Note: This is not otherwise build on a specific version (like '4.8.0' or similar), so there may be issues that have been solved or introduced since then that have little or nothing to do with the Variable Line Width feature-set!

New Settings

Variable Line Strategy: How the walls are spread over the available space.

• Central Deviation: Will print all walls at the nominal line width except the central one(s), causing big variations in the center but very consistent outsides.
• Distributed: Distributes the width variations equally over all walls.
• Inward Distributed: Is a balance between the other two, distributing the changes in width over all walls but keeping the walls on the outside slightly more consistent.

Minimum Variable Line Width: The smallest line width, as a factor of the normal line width, beyond which it will choose to use fewer, but wider lines to fill the available space. Reduce this threshold to use more, thinner lines. Increase to use fewer, wider lines.

Wall Transition Length: When transitioning between different numbers of walls as the part becomes thinner, a certain amount of space is allotted to split or join the wall lines.

Wall Transition Angle: When transitioning between different numbers of walls as the part becomes thinner, two adjacent walls will join together at this angle. This can make the walls come together faster than what the Wall Transition Length indicates, filling the space better.

Wall Transition Filter Distance: If it would be transitioning back and forth between different numbers of walls in quick succession, don't transition at all. Remove transitions if they are closer together than this distance.

Maximum Extrusion Area Deviation: Influences extrusion line simplification. The maximum extrusion area deviation allowed when removing intermediate points from a straight line. Keeping it low may cause (too) little simplification to occur (with all the problems that causes), but ff you increase this you may notice slight under- (or over-) extrusion in between straight parallel walls.

Removed/Renamed/Altered Settings

Print Thin Walls: Behaviour altered.

Optimize Wall Printing Order is renamed to Order Inner Walls By Inset. Behaviour altered.

To Implement

Not all initially planned sub-features, such as Fuzzy Skin, are in yet, any subsequent non-patch releases will probably contain more.

Known Issues

SkeletalTrapezoidation not robust to unsimplified input. For very intricate and or small models, crashes may occur. Please attach any crashing model to the discussion/feedback link above.

Different extruders for inner and outer walls. The used extruder alternate each layer but the inner and outer wall are printed with the same extruder (used at that layer)

Spiralise bugs:

• Bottom layers issue in spiralize mode.
• Stringing when in spiralized mode.
• Last bottom layer missing for some models.

Support not being correctly generated. It might start mid-air or not providing enough support for some parts of the model.

Gradual infill support not being correctly generated. Support walls don't seem to be printed well when gradual infill support is enabled. Ultimaker printers enable this by default for PVA.

Combing in the wrong part when printing dual extrusion. Visible, for example, when printing with dual extrusion with two different colors. E.g.: 'Bleeding' of red into white parts.

Stringing. It seems that the Outer Wall Wipe Distance is causing unwanted travel moves without retraction.

Gaps between inner wall and skin.

Z-Seam Sharpest Corner broken. The seam is not placed in the sharpest corner

Small line width and overlap. When using the Center Deviation setting on a thin model some wall lines may overlap or leave a gap.

Wall positioning is imprecise. On some models, the walls are not centered properly within the outline nor have the correct width.

Connected and gradual infill results in overextrusion. When gradual infill and connect infill lines is enabled, it'll connect different pieces of infill on top of each other, causing overextrusion.

Connect Top/Bottom polygon not working currently. The issue occurs when concentric is the infill pattern.

Small travel line segments in infill/support. This is causing unnecessary traveling and stringing.

Wrong Infill Layer Thickness. In combination with a higher Extra Infill Line Count, some parts are not generating infill lines.

Inward/Distributed overextrusion. Seen on models with multiplied infill walls.

Overlapping skin and alternating wall. The extra wall at each alternating step will overlap with the skin

Assertion failure in SkeletalTrapezoidation. Can cause the engine to crash on certain models.

4.8.0

Ultimaker Cura 4.8

For an overview of the new features in Cura 4.8, please see this video: Change log overview.

Highlights

New arrange algorithm!
Shout-out to Prusa Research, since they made the libnest2d library for this, and allowed a licence change.

When opening a project file, pick any matching printer in addition to just exact match and new definition.
Previously, when someone sent you a project, you either had to have the exact same printer under the exact same name, or create an entirely new instance. Now, in the open project dialog, you can specify any printer that has a(n exactly) matching printer-type.

Other Features

Show warning message on profiles that where successfully imported, but not supported by the currently active configuration.
People where a bit confused when adding profiles, which then didn't show up. With this new version, when you add a profile that isn't supported by the current instance (but otherwise correctly imported), you get a warning-message.

Show parts of the model below the build-plate in a different color.
When viewing the build-plate from below, there's now shadow visible anymore. As this helped the user determine what part of the model was below the buildplate, we decided to color that part differently instead.

Show the familiar striped pattern for objects outside of the build-volume in Preview mode as well.
Models outside of the build-volume can of course not be sliced. In the Prepare mode, this was already visible with solid objects indicated in the familiar grey-yellow striped pattern. Now you can also see the objects that are still in the scene just outside if the build-volume in Preview mode.

Iron the top-most bottom layer when spiralizing a solid model, contributed by smartavionics
Ironing was only used for top-layers, or every layer. But what is the biggest flat surface in a vase? This helpful pull request made it so that, in this case, the top-most bottom layer is used to iron on.

Allow scrolling through setting-tooltips, useful for some plugins.
Certain plugins, such as the very useful Settings Guide, occasionally have very large tooltips. This update allows you to scroll through those.

Bug Fixes

• Fixed under-simplification (blobs, zits) on some printer models. An oversight in 4.6.x resulted in an oversimplification (smoothing) of models. The attempted fix in 4.7.x overcompensated, which gave difficulty (zits, blobs) for some printer models when the resulting gcode became too intricate. This is now fixed, though some profiles might need to be updated, since they where made against 4.6.x, and therefore may rely on the over-simplification.
• Fix percentage text-fields when scaling non-uniformly.
• Fix cloud printer stuck in connect/disconnect loop.
• Fix rare crash when processing stair stepping in support.
• Fix sudden increase in tree support branch diameter.
• Fix cases of tree-support resting against vertical wall.
• Fix conical support missing on printers with 'origin at center' set.
• Fix infill multiplier and connected lines settings not cooperating with each other.
• Fixed an issue with skin-edge support, contributed by smartavionics
• Fix printer renaming didn't always stick after restart.
• Fix move after retraction not changing speed if it's a factor 60 greater.
• Fix Windows file alteration detection (reload file popup message appears again).
• OBJ-file reader now doesn't get confused by legal negative indices.
• Fix off-by-one error that could cause horizontal faces to shift one layer upwards.
• Fix out of bounds array and lost checks for segments ended with mesh vertices, contributed bt skarasov
• Remove redundant 'successful responses' variable, contributed by aerotog
• In rare cases, brim and prime-tower-bim would overlap.
• Fix support for some models when bottom distance and stair step height where both 0 (like with PVA).
• An issue with infill only overlap modifier when the wall line count was overridden in the global settings.
• Filling gaps between walls would also fill between skin and infill.

Printer definitions and profiles

• Introducing the Ultimaker 2+ Connect
• Artillery Sidewinder X1, Artillery Sidewinder Genius, contributed by cataclism
• AnyCubic Kossel, contributed by FoxExe
• BIQU B1, contributed by looxonline
• BLV mgn Cube 300, contributed by wolfgangmauer
• Cocoon Create, Cocoon Create Touch, contributed by thushan
• Creality CR-6 SE, contributed by MatthieuMH
• Flying Bear Ghost 5, contributed by oducceu
• Fused Form 3D (FF300, FF600, FF600+, FFmini), contributed by FusedForm
• Add Acetate profiles for Strateo3D, contributed by KOUBeMT

4.8 Beta

Ultimaker Cura 4.8 beta

Highlights

New arrange algorithm!
Shoutout to Prusa, since they made the libnest2d library for this, and allowed a licence change.

When opening a project file, pick any matching printer in addition to just exact match and new definition.
Previously, when someone sent you a project, you either had to have the exact same printer under the exact same name, or create an entirely new instance. Now, in the open project dialog, you can specify any printer that has a(n exactly) matching printer-type.

Other Features

Show warning message on profiles that where successfully imported, but not supported by the currently active configuration.
People where a bit confused when adding profiles, which then didn't show up. With this new version, when you add a profile that isn't supported by the current instance (but otherwise correctly imported), you get a warning-message.

Show parts of the model below the buildplate in a different color.
When viewing the buildplate from below, there's now shadow visible anymore. As this helped the user determine what part of the model was below the buildplate, we decided to color that part differently instead.

Show the familiar striped pattern for objects outside of the build-volume in Preview mode as well.
Models outside of the build-volume can of course not be sliced. In the Prepare mode, this was already visible with solid objects indicated in the familiar grey-yellow striped pattern. Now you can also see the objects that are still in the scene just outside if the build-volume in Preview mode.

Iron the top-most bottom layer when spiralizing a solid model, contributed by smartavionics
Ironing was only used for top-layers, or every layer. But what is the biggest flat surface in a vase? This helpful pull request made it so that, in this case, the top-most bottom layer is used to iron on.

Allow scrolling through setting-tooltips, useful for some plugins.
Certain plugins, such as the very useful Settings Guide, occasionally have very large tooltips. This update allows you to scroll through those.

Bug Fixes

• Fix the simplify algorithm, which should now properly remove tiny line segments again.
• Fix percentage text-fields when scaling non-uniformly.
• Fix cloud printer stuck in connect/disconnect loop.
• Fix rare crash when processing stair stepping in support.
• Fix sudden increase in tree support branch diameter.
• Fix cases of tree-support resting against vertical wall.
• Fix conical support missing on printers with 'origin at center' set.
• Fix infill multiplier and connected lines settings not cooperating with each other.
• Fixed an issue with skin-edge support, contributed by smartavionics
• Fix printer renaming didn't always stick after restart.
• Fix move after retraction not changing speed if it's a factor 60 greater.
• Fix Windows file alteration detection (reload file popup message appears again).
• OBJ-file reader now doesn't get confused by legal negative indices.
• Fix off-by-one error that could cause horizontal faces to shift one layer upwards.
• Fix out of bounds array and lost checks for segments ended with mesh vertices, contributed bt skarasov
• Remove redundant 'successful responses' variable, contributed by aerotog

Printer definitions and profiles

• Artillery Sidewinder X1, Artillery Sidewinder Genius, contributed by cataclism
• AnyCubic Kossel, contributed by FoxExe
• BIQU B1, contributed by looxonline
• BLV mgn Cube 300, contributed by wolfgangmauer
• Cocoon Create, Cocoon Create Touch, contributed by thushan
• Creality CR-6 SE, contributed by MatthieuMH
• Flying Bear Ghost 5, contributed by oducceu
• Fused Form 3D (FF300, FF600, FF600+, FFmini), contributed by FusedForm
• Add Acetate profiles for Strateo3D, contributed by KOUBeMT

4.7.1

Ultimaker Cura 4.7.1

For an overview of the new features in Cura 4.7, please see this video: Change log overview

• Bug fixes:
  • Fixed a crash when duplicating a built-in profile.
  • Having an equals symbol in your start or end g-code would cause part of that g-code to disappear and could cause a crash when loading a model. This is fixed now.
  • The MacOS build is now notarized by Apple, to prevent a security warning from popping up when starting Cura for the first time.
  • Corrected the orientation of the build plate mesh for Tevo Tarantula Pro.