Until now, PrusaSlicer produced G-code for the legacy Marlin firmware only. We newly split the Marlin firmware flavor to 'Marlin legacy ' and 'Marlin 2' to be able to support new Marlin 2 features, above all the more fine grained acceleration control, separating the acceleration while traveling from acceleration while extruding With the 'Marlin legacy ' firmware flavor active, M Pa Rb Ta is emitted at the G-code preamble, where a, b are the values from machine limits, while M S With the 'Marlin 2' firmware flavor active, M Pa Rb Tc is emitted at the G-code preamble, where a, b, c are the values from machine limits, while M P Due to technical limits of internal architecture inherited from original Slic3r, PrusaSlicer did not have any concept of opened project.
That is, it did not track whether current plater contents was modified since it was loaded etc. This led to desperate moments when a user closed the application and instead of being asked about unsaved changes, they would all be discarded without a warning.
This release introduces this concept of edited project. When a 3MF is loaded and the objects are modified, an asterisk is shown in the title bar as an indication of unchanged changes in the project. This disappears after the changes are saved. Attempting to close the application, to open another project etc will open a dialog about whether the changes should be saved first.
A confirmation dialog is shown when there are unsaved changes in current project. While the plater content is still recoverable by Undo after opening a new project, the link to the previously opened project will not be recovered and the objects will be considered as parts of the new unsaved project.
Also, creating New Project does not affect modified profiles. Modifying configuration parameters in selected profiles is also considered as a change in the currently active project. When attempting to close the application with such an unsaved change, the user would again be asked whether to save the project. In case they select 'Yes', the modified profile will be saved into the 3MF and the application will close. However, answering 'No' will close the unsaved project and the "Unsaved changes dialog" introduced in PrusaSlicer 2.
We are newly allowing an object to be moved below the print bed to print just the part of the object above the print bed. Arguably this was already doable with the "Cut" tool, but the new way is much simpler to use and very handy for example if one just needs to flatten the bottom of an uneven object to be printable without a raft. We do not allow the object to be lifted above the print bed: Elevated objects are not printable without a raft and supports.
If an object is not flat, raft shall be enabled for the object by the user. An object is either on the print bed or below the print bed. If an object is on the print bed, the software behaves as before: After rotating and scaling, the object Z position is adjusted to touch the print bed. On the other hand, if an object is partially below the print bed, scaling and rotation does not change object's Z position as long as the object is not elevated above the print bed.
If an object is elevated above the print bed, it is again lowered to touch the print bed. There is also a new button "Drop to bed" at the object manipulation panel to move the object back to the print bed, however the same action may be done just by elevating the object above the print bed with the move gizmo and letting it drop back to the print bed.
If the object is partially below the print bed, a white contour is drawn along the object - print bed intersection to indicate where the object will be trimmed. When in painting gizmo, the part below the print bed is being clipped and painting on the print bed clipping plane is not allowed. Moving objects below print bed is not allowed in SLA mode for now as it would make the placement of SLA supports confusing.
Thus when switching from an FDM printer to a SLA printer, all objects below the print bed are being lifted to touch the print bed. After slicing a sign object, a notification is newly shown in the G-Code preview informing that the object looks like a sign and that one may want to use the Color Print feature to manually switch the filament.
If one agrees with the suggestion by clicking on the notification hyperlink, the color change events are inserted into the vertical scroll bar. This feature was proposed by richrap , thanks for the suggestion. We have implemented a Shape Gallery offering both system shapes distributed with PrusaSlicer installation and user shapes installed into user's configuration directory. The Shape Gallery could be used to insert a shape on the plater, as an additional part of an object or as a modifier similarly to how a built in shape cube, cylinder, sphere has been inserted by earlier PrusaSlicers.
The Shape Gallery could be used for example to emboss a recycling code to the bottom of an object , for loading Mickeymouse brims to augment brims etc. Based on the popular request, we have implemented Dark Mode for Windows and we have also fixed the High Contrast mode PrusaSlicer's user interface is implemented using a wxWidgets multi-platform library, which wraps around the native controls the platform provides. On Windows, wxWidgets wrap around the aging Win32 controls, for which there is no official Dark Mode support provided by Microsoft since the introduction of the Dark Mode into Windows 10 in fall If a Win32 control is not used by Windows Explorer main window, it is not Dark Moded and it never will be, and the API for those controls that are supported is not official, thus it may be changed without notice.
Still some of the controls are not skinned properly, for example the scroll bars, status bar or the spin control buttons, thus PrusaSlicer may not look quite polished in Dark Mode. Therefore for now we decided to not switch PrusaSlicer into Dark Mode following the Windows system settings, but we are letting the user to select dark mode from Preferences using the "Use Dark color mode experimental " checkbox. PrusaSlicer grows more powerful every day offering many unique features not found in other slicers.
We newly present "Did you know" hints inside a notification, often providing a hyper link to highlight a user interface element toolbar button, configuration parameter or to open a help page in web browser. The tips may be disabled in preferences, however we believe you will find them useful. Many of our users run a small or not so small print farm, thus they may use a single PrusaSlicer session to slice and upload G-codes to multiple 3D printers in succession. To better support this workflow, we implemented the following improvements:.
We newly provide a model simplification tool based on Quadric Edge Collapse algorithm, thus our implementation produces similar results to Microsoft 3D Builder model simplification or to MeshLab Quadric Edge Collapse simplification tool.
The simplification rate is controlled either by required level of detail which internally uses estimates of maximum geometric error with respect to the original model or by the fraction of triangles to be removed. PrusaSlicer 2. This is a final release of PrusaSlicer 2. For the new features in the 2. The final release is functionally equal to the release candidate, with a single additional improvement:.
Before installing profile updates, a configuration snapshot is taken. In rare circumstances when the current configuration is not consistent, taking a configuration snapshot fails.
This is a release candidate of PrusaSlicer 2. Unlike the beta, the release candidate saves its profiles into PrusaSlicer directory, which is the same directory where the previous releases of PrusaSlicer and the rcs keep their profiles.
If you were testing the PrusaSlicer 2. This is a beta release of PrusaSlicer 2. This a final release of PrusaSlicer 2. For full changelog on PrusaSlicer 2. This a release candidate of PrusaSlicer 2. The new Universal builds contain binaries of both x and ARM platforms, thus the distributed package is somehow larger than the previous PrusaSlicer. We were lucky to fix that issue through a trial and error process due to a lack of OpenGL API documentation and debugging tools from Apple.
We thank xarbit and obelisk for their initial work on PrusaSlicer M1 port Chromebooks are getting increasingly popular due to their low price, good usability and stability. This makes the Chromebooks the number 1 pick for the US educational institutions. Luckily Google now offers a containerized Linux on modern Chromebooks out of the box and PrusaSlicer runs in the virtualized Linux environment nicely.
We encountered the following issues when testing PrusaSlicer on Chrome OS, and we solved some of them:. We fixed these two potential security issues with this release of PrusaSlicer. Skip to content. Star 3. Releases Tags. Send system info In order to focus our future effort, we decided to optionally collect some general information about the systems PrusaSlicer is commonly executed on.
FDM support improvements with respect to PrusaSlicer 2. Disabled enhancement of thin long overhangs to be supported. The enhancement produced supports at object corners, which were difficult to explain Such filtering made sense to reduce excessive supports before introduction of support blockers and paint-on supports, however the filtering step was the reason of PrusaSlicer support generator seemingly not respecting the support overhang threshold and support enforcers This change together with the previous topic significantly improves When calculating snug support interfaces below support contacts, the projected support contact areas are expanded to produce wider, printable and more stable interfaces.
This fixes some missing snug support interfaces. For grid supports, supports supporting steep overhangs are not covered with dense support interfaces, because steep overhangs are mostly self supporting.
However this strategy did not work well for the snug supports with narrow towers, thus overhangs with all angles are newly covered with support interfaces For snug supports the interface layers are newly angled at 45 degrees from the base supports and they alternate their direction by 90 degrees, making the interfaces cohesive. Fixed planning of support interface layers with rafts and larger Z gap for supports than for the raft. Regression to PrusaSlicer 2.
Improvements of painting gizmos 'Smart fill' and 'Pointer' brush types introduced recently into multi material painting gizmo are now available at FDM support and Seam painting gizmos as well. The FDM paint-on supports gizmo newly allows limiting the brush strokes to triangles highlighted by "Highlight by angle" slider.
One may let PrusaSlicer highlight the overhangs and one can quickly mark only those highlighted areas that are essential to the success of the print while masking out the non-overhang areas. With clipping plane enabled, the areas clipped by the clipping plane are no more painted. Seam improvements When possible, PrusaSlicer newly places seams on internal perimeters close to external seams, reducing travel moves and retractions.
Other improvements with respect to PrusaSlicer 2. Convex print beds are partially supported: The part of an object outside of the print bed volume is not yet highlighted with blue color. No collision detection is performed for non-convex print beds Notifications about new PrusaSlicer versions available for download are newly available for prerelease versions alphas and betas as well.
Several more improvements regarding notifications new icons, adjusted timeouts, minimal time notification stays on screen, no focus on hover. Windows specific: After a model is repaired by Netfabb successfully, a notification is shown instead of a modal dialog Modifiers, support blockers and support enforcers are newly rendered transparent The mesh simplification tool newly initiates calculation of the preview of the simplified model automatically, the "calculate preview" button is gone.
The calculation can be stopped by pressing Esc key. PrusaSlicer highlights toolbar items and print preset options with red blinking arrows after they are selected by the search dialog or when clicking on a hyperlink of a "Tip of the day" notification. The red blinking arrow is newly newly supported by the Preferences dialog as well. Models with zero volume for example an STL with one polygon are no more loaded. Previous versions of PrusaSlicer loaded such files, but these objects did not show on Plater, which was confusing.
PrusaSlicer newly distinguishes between three states: 1 Model is fine, 2 model was broken, but it is now fixed, 3 model is still broken. The three states are reflected by the "warning" icon at the side panel: If the model is still broken, red "exclamation" icon is shown. If a mesh was broken but repaired successfully, white "warning" icon is shown.
If a mesh was repaired during import into PrusaSlicer, the number of errors fixed is newly saved into 3MF, so that the status of an imported model is not lost. New default shapes were added into the Shape Gallery. Context menu is newly available for custom shapes of the Shape Gallery, which allows to delete a custom shape or to modify its thumbnail.
The dialog also newly accepts the Del key. Windows 11 specific: Fixed implicit setting of the dark mode. Travel paths planned by the "avoid crossing perimeters" algorithm no more follow the outermost perimeter, but the 2nd outermost perimeter if possible. This should improve the print surface quality and reduce re-heating of overhangs.
Hollowing gizmo newly allows drilling larger holes for inserting magnets , thanks h Bugs fixed Fixed dimples sometimes appearing on multi-material painted objects, often happening on cylindrical objects Improved detection of seams and their visualization by the G-code viewer.
Some of the seam points were missed Fixed incorrect default context menu if the right mouse button was clicked on empty space in 3D scene when several objects were selected. Fixed some issues due to the recent admesh eradication in PrusaSlicer 2. Implemented processing of M G-code set hot end temperature and wait by the G-code viewer Fix by Netfabb is again available for all models, even those reported as manifold Numeric inputs in 3D scene newly accept localized decimal separator.
For example, one may enter decimal comma into the Cut by plane clipping plane height Multipart objects are not supported in SLA mode, thus when a new SLA printer is added through the Configuration Wizard, it is only activated if there are no multipart objects on the Plater.
Mesh simplification tool did not work correctly when applied on a model volume or a modifier mesh. Object transformation values at the side panel were barely readable with both dark mode and colored background of the coordinate text boxes enabled Modifier context menu at the side panel was made consistent with the modifier context menu in the 3D scene.
Windows specific: Tooltips on "Slice now" and "Send to OctoPrint" buttons were getting in the way when clicking the buttons. Fixed crash when turning on shells visibility in preview with background processing active. Fixed non-uniform scaling of a volume using the part manipulation panel Windows specific: Dark mode config option is now available in standalone G-Code Viewer. Modifiers added to an object from the Shape Gallery are newly centered first before calculating their initial position relative to the object.
Fixed regression wrt. Fixed another regression due to G-code export parallelization: M fan speed was exported on every layer Fixed crashes with some models on SLA hole drilling. Fixed "out of print bed" indication for objects partly below the print bed. Improved fuzzy skin options wording "walls" instead of "perimeters" , , thanks nsheridan. Fixed confusing cooling hint when min and max fan speed are equal Fixed variable layer editing disabled with raft enabled, this was a regression wrt.
Fixed paint on supports showing through model in certain orientations We use cookies. If you continue to use this site we will assume that you agree with it. You can delete our cookies. How this works, is explained in our privacy policy. OK Reject. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website.
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You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience. Necessary Necessary. General discussion, announcements and releases. Clear all. Slic3r Prusa Edition 1. Last Post. Jakub Dolezal. Log in to be able to post.
Reputable Member. Re: Slic3r Prusa Edition 1. Great work Slic3r dev Team! Been using alpha and now beta version. Such a great step forward. Great job and thanks! Trusted Member. Topic starter answered:. Active Member. Thanks for the great software Thomas Log in to be able to post.
If you want to get back the old behaviour, set the two values to AppImage Custom variables edition. Please update to the 2. Travelling edition Pre-release. No more feature on this branch, will become the new stable, hopefully. Search: display tooltip in tooltip, search full sentence in tooltip low score.
Can now be changed in the UI file. When removing too thin bridge, fill with solid infill instead of sparse. No more unwanted infill, but fan kickstart Pre-release.
The 2.
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