prusa3d/PrusaSlicer

Features

• 3D Printer Slicers - G-code generator that converts 3D models into machine instructions for FFF and mSLA printers with full slicing, infill, and support generation.
• 3D Printing Slicing Workflows - Converts digital 3D models into machine-specific instructions for FFF or mSLA printers.
• Layer-Based Filament Change Scheduling - Schedules filament swaps at specific layers when using a multi-material unit.
• Multi-Material Color Painting - Colors different regions of a model to assign them to different extruders or materials.
• Multi-Material Painters - Lets users paint colors or materials directly on the model surface for multi-material printing.
• Multi-Material Print Managers - Manages prints that use multiple filaments or colors by assigning materials to model regions and scheduling filament changes.
• 3D Slicing Command-Line Interfaces - Provides a terminal-based interface to invoke the full slicing pipeline without a GUI.
• Command-Line Slicers - Processes 3D models and profiles via terminal commands to produce printable G-code without a graphical user interface.
• Multi-Format 3D Model Importers - PrusaSlicer loads 3D models in formats including 3MF, STL, STEP, and OBJ for slicing.
• Support Structure Generators - Creates temporary scaffolding under overhanging parts of a model to prevent collapse during printing.
• Organic Support Generators - Generates branching, tree-like support structures that are easier to remove than traditional grid supports.
• Variable-Width Extrusion Perimeters - Implements the Arachne engine that dynamically adjusts extrusion widths for stronger, smoother walls.
• Multi-Material Print Managers - Coordinates manual or automatic filament swaps for multi-color prints using a multi-material unit.
• 3MF Package Management - PrusaSlicer stores all objects, settings, and modifiers in a single 3MF file for later reuse.
• Complete Project Serializations - PrusaSlicer stores all objects, settings, modifiers, and parameters in a single 3MF file for full project recall.
• Custom G-Code Macros - Evaluates variables, conditionals, and math expressions in custom G-code fields at slice time.
• Custom G-code Outputs - PrusaSlicer inserts user-defined macros, variable placeholders, and post-processing scripts into the generated G-code for tailored machine control.
• G-code Customization Engines - PrusaSlicer modifies generated G-code with custom macros, variables, find-and-replace operations, and external scripts for tailored machine control.
• Resin Printing Preparations - Prepares models for resin printers by hollowing, orienting, and generating supports.
• 3D Text Embedding Tools - Embeds or extrudes text labels directly onto any surface of a 3D model for identification or decoration.
• G-code Viewers - Displays a visual simulation of the toolpath from a G-code file to inspect the print before starting.
• Print Host Uploads - PrusaSlicer uploads sliced G-code to an Octoprint or Duet print host from within the slicer.
• Purging Volume Configurations - Sets the amount of filament to purge during multi-material tool changes to ensure clean transitions.
• Multi-Material STL Merging - Combines multiple STL files into a single multi-material model for MMU printers.
• Fuzzy Skin Textures - Creates a rough, fiber-like texture on vertical surfaces by oscillating the nozzle during perimeter extrusion.
• Per-Object Print Settings - Adjusts infill, layer height, or other parameters for individual objects on the same build plate.
• Variable Layer Heights - Adjusts layer thickness in different areas of a model to balance detail and speed where needed.
• Infill Density Configurations - PrusaSlicer sets the amount of internal fill material to control part strength and print time.
• Infill Pattern Selections - PrusaSlicer deposits a configurable internal lattice structure to support top layers and control part strength.
• Move Speed Configurators - Configures separate speed limits for perimeters, infill, bridges, and other print move types.
• 3D Print Setting Modifiers - PrusaSlicer overrides print settings like infill or perimeters for a specific volume within a model.
• 3D Model Part Splitting - PrusaSlicer splits a multi-part STL into individual objects or parts for independent manipulation.
• 3D Mesh Splitting - PrusaSlicer separates a single file containing multiple meshes into individual printable objects or parts.
• Per-Object Settings Stacks - Each model on the build plate carries its own settings stack that inherits from global profiles.
• Post-Processing Hooks - External scripts run automatically on generated G-code after slicing without modifying the slicer.
• Online Model Importers - PrusaSlicer downloads and imports 3D models from supported online repositories with a single click.
• 3D Printing Slicing Pipelines - Decomposes the slicing process into configurable stages for granular control over each step.
• Boolean Mesh Subtraction Tools - PrusaSlicer removes the volume of one mesh from another to create holes or cavities directly in the slicer.
• 3D Object Transform Tools - Ships interactive widgets and numeric inputs for moving, rotating, and scaling 3D models on the build plate.
• Extrusion Pressure Equalization - Smooths pressure variations in the nozzle to reduce blobs and gaps during speed changes.
• Mesh Simplification - PrusaSlicer reduces the triangle count of a 3D model to speed up slicing and handling of complex scans.
• Boolean Mesh Subtraction - PrusaSlicer subtracts a mesh shape from the model to produce holes or cutouts that resize with the object.
• Filament - PrusaSlicer applies pre-defined material profiles for common filament brands and types across any printer.
• Numeric Object Manipulation Panels - Provides a side panel for entering exact position, rotation, scale, or size values for selected 3D objects.
• Surface Text Painting - Places labels, notes, or serial numbers directly onto any surface of a 3D model for identification or decoration.
• Maximum Volumetric Flow Rate Limiters - Caps the volume of plastic extruded per second to prevent underextrusion at high speeds.
• STL Mesh Repair Tools - Detects and automatically fixes common mesh errors such as holes and non-manifold edges to make broken STL models printable.
• Model Manipulation Tools - Fixing broken STL files, cutting models into pieces, adding text, and performing boolean operations directly in the slicer.
• Per-Volume Print Setting Overrides - Allows changing infill, perimeters, and other parameters within a defined volume of a model.
• Perimeter Seam Placements - Places the start/end point of each perimeter loop at a chosen location to hide or align the seam.
• Project File Serialization - Saves complete project state including objects, settings, and modifiers into a single 3MF file.
• Seam Painting Tools - Manually marks where the seam should start and end on the model surface.
• SLA Output Exporters - PrusaSlicer generates SLA-format output files from a 3D model using command-line slicing parameters.
• Support Painting Tools - Manually marks regions on a model where supports must be added or prevented.
• Fuzzy Skin Textures - Creates a fiber-like rough texture on vertical surfaces by oscillating the nozzle during perimeters.
• 3D Geometry Measurements - PrusaSlicer measures lengths, angles, and radii directly on the loaded model using a geometry detection tool.
• Vertical Seam Placements - Positions the start/end point of perimeter loops to hide or minimize visible seams on the model.
• Volumetric Flow Rate Limiters - Caps the volumetric flow of plastic to prevent under-extrusion and ensure consistent output.
• 3D Model Cutting Tools - PrusaSlicer splits a 3D model into separate printable parts so each piece fits the build volume or can be printed individually.
• Print Job Previews - Visualizes toolpaths layer by layer, arranges models on the build plate, and sends G-code directly to printers or print hosts.
• Layer Previews - Renders a 3D visualization of the sliced model so users can inspect each layer, toolpath, and material before printing.
• Print Preview and Simulation Tools - Rendering a layer-by-layer 3D visualization of sliced toolpaths so users can inspect geometry, supports, and material assignments before printing.
• Bed Adhesion Aids - Prints skirts and brims around or under models to improve bed adhesion and prime the nozzle.
• Rafts - PrusaSlicer raises a model off the build plate to print it with a raft or to avoid a damaged bed surface.
• First Layer Adjustments - Adjusts first layer dimensions to counteract widening caused by nozzle pressure on the build plate.
• Layer-Based Pauses - Halts the print at a chosen layer to perform manual actions or inject custom machine commands.
• G-Code Find-and-Replace - PrusaSlicer performs search-and-replace operations on the generated G-code using plain text or regex.
• G-Code Placeholder Variables - PrusaSlicer references dynamic values like temperatures and speeds in custom G-code using predefined placeholders.
• Printer Network Transfers - PrusaSlicer transfers sliced G-code directly to printers via Prusa Connect, PrusaLink, or Octoprint.
• Toolpath Previews - Visualizes the printed toolpath layer by layer to inspect and verify the slicing result.
• Print Feature Extruder Mapping - Maps specific print features like perimeters or infill to different tool heads or extruders.
• Part Cooling Controls - Adjusts fan speed and minimum layer time to ensure proper cooling of small or overhanging features.
• Model Hollowing - Removes interior volume from a resin model to reduce material use and print time.
• Model Orientation Optimizations - Rotates the model to optimize print quality and reduce support requirements for SLA.
• Print Host Transfers - PrusaSlicer transfers sliced files directly to OctoPrint or Duet over the network.
• Top Surface Ironing - Runs a heated nozzle over flat top layers to melt and smooth the surface finish.
• Automatic Model Arrangers - PrusaSlicer automatically positions and rotates multiple models on the build plate to maximize packing efficiency.
• Custom G-Code Variables - PrusaSlicer defines local or global variables within custom G-code blocks to store and reuse values across the slicing process.
• Variable Layer Heights - Defines regions with different layer heights and smooths transitions to balance speed and detail.
• Design And Modeling - Native 3D printing and slicing software.
• 3D Printing - Feature-rich slicer based on community-driven development.

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