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An open-source, feature-rich, frequently updated tool that contains everything you need to export the perfect print files for your 3D printer.
Free and open-source
PrusaSlicer is based on Slic3r by Alessandro Ranellucci. Thanks to the strong community and a team of developers in Prusa Research we can continually add new features. Follow the development on our GitHub.
Clear & simple UI
We've reworked the UI and exposed all the power features while making the UI clear and simple to use at the same time. It looks great on a small laptop screen as well as on a HiDPI multi-monitor setup.
Custom supports
Paint custom supports directly on the model, it's quick and easy. You can also use custom meshes as support blockers and enforcers. Everything is neatly saved in the project file, always customizable.
Fine-tuned material profiles
Testers and developers at Prusa Research are constantly working on presets for 250+ filaments and resins by the most popular manufacturers. You will get new profiles automatically through the auto-update function.
Color painting
Coloring an object for multi-material printing requires just a handful of clicks with the smart fill and brushstroke tools! During slicing, the painted regions are cleverly extended inwards for the best material adhesion.
STEP file import
Import STEP files directly and skip converting CAD models into an STL. STEP is interoperable among most CAD programs including Fusion 360, FreeCAD, SolidWorks, Inventor, AutoCAD, CATIA, and many more.
Color change
You can prepare prints with color changes directly in PrusaSlicer. Just click on the slider in the print preview screen. A preview is displayed instantly so you’ll see exactly how your model will look with color-change.
Built-in profiles for most printers
Thanks to the help of our wonderful community, we're growing the collection of fine-tuned 3rd party printer profiles, including Creality, Voron, or Anycubic printers.
Print time/feature analysis
The legend in the preview shows a breakdown of the print time by feature. Change any of the settings and watch how the print time changes.
Send G-code over network
Send G-code directly to your printer with a single click of a button. We support Octoprint, Repetier Host, FlashAir SD cards and more! PrusaSlicer also works with advanced features of Octoprint like upload queue or Cancelobject plugin.
Smooth variable layer height
You can select the layer height for each part of the object separately. Our software takes care of smoothing so the final print looks best as it can and the printing time remains acceptable.
MSLA & MMU support
With the release of our Original Prusa SL1 resin 3D printer, we’ve added MSLA mode into PrusaSlicer. As far as we know, PrusaSlicer is the first high-quality open-source MSLA slicer available. PrusaSlicer also supports multi-material FFF printing with the Original Prusa MMU2S.
For more info visit https://www.prusa3d.com/
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