Rodrigo FaselliandIan Bassi
303d7a1a07
* Option: Show/ Hide inactive plates * Hide inactive plate volumes by bounds Switch inactive-plate volume hiding to use geometric overlap with the current plate bounding box instead of object and wipe tower ID mapping. This also guards against a missing current plate and keeps any active volume visible when its transformed bounds overlap the current plate footprint. * Hide inactive plates per instance and keep them unpickable Decide what is shown per object instance, from its footprint over the current plate, so the parts of an object are never split; a selected instance stays visible. Keep the hidden state between frames instead of restoring it after each one. GLVolume::on_hidden_plate records what this update hid, so it only shows that again and leaves the volumes gizmos hide alone, and the raycasts made while handling the mouse see the same scene as the frame. Nothing runs while the inactive plates are shown. Deactivate the raycasters of the other plates, whose icons still took clicks where nothing was drawn, move the axes to the current plate, and limit the option to Prepare, as Preview already shows the current plate alone. * Follow the selected plate with the camera while the others are hidden Selecting a plate in Prepare while the inactive plates are hidden moves the camera target over it and keeps the angle, distance and height, so the plate comes into view where the previous one was. A zoom to all plates, as after loading a project or adding a plate, frames the current plate instead. * Add a compact plate switcher while inactive plates are hidden The hidden plates can no longer be clicked, and the object list gets crowded on large projects. While they are hidden in Prepare, a column of numbered buttons in the top left corner, a compact counterpart of the Preview plate toolbar, selects the plate to show. It highlights the current plate, dims the empty ones and gives the plate name in the tooltip. * Simplify the inactive plates update and the plate switcher layout Decide and apply each volume's state in one pass instead of filling a per-volume vector first, and hoist the switcher's loop-invariant colors. Keep the height the bottom-left corner takes next to the constants it is made of, with the canvas toolbar's button spacing named, rather than repeating that layout in the switcher. * Rename the option to Focus mode The canvas menu entry reads Focus mode, lit while the other plates are hidden, and is off by default, so nothing changes until it is turned on. The app config key is focus_mode. Turning it on zooms to the current plate, so the plate fills the view. * Show plate thumbnails in the plate switcher The switcher shows the thumbnails of the Preview plate toolbar instead of numbered buttons, with rounded corners concentric with the window's. Plater::plate_toolbar_image_version() lets it refresh them without clearing the Preview toolbar's dirty flag. * Don't draw the sinking contours of inactive volumes GLVolume::render() skips an inactive volume, but its sinking contour was still drawn, so an object on a hidden plate left its outline behind. * Show the plate switcher's scrollbar only on hover, as in Preview The plate switcher now shares the Preview plate toolbar's scrollbar: the same width and colors, shown only while the mouse is over the column or drags the bar, with the mouse wheel scrolling it either way, and tighter window corners while it shows. Both toolbars draw it through the same helpers, so they cannot drift apart; the Preview toolbar behaves as before. Drop the frame style the switcher no longer uses since it draws thumbnails instead of buttons. * Make the plate switcher's thumbnails cheaper and match the Preview toolbar The thumbnail version moves after almost every edit, and the switcher redrew both thumbnails of every plate each time. It now redraws only the current plate's, the only one edited while the others are hidden, and the other plates' once their thumbnails are invalidated, through the new Plater::update_plate_thumbnails(). IMToolbarItem::set_thumbnail() uploads a plate thumbnail without keeping a copy of its pixels, a megabyte per plate, and replaces the item setup the Preview toolbar and the switcher each repeated. The switcher's hover border takes the Preview toolbar's color. --------- Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
OrcaSlicer: an open source Next-Gen Slicing Software for Precision 3D Prints.
Optimize your prints with ultra-fast slicing, intelligent support generation, and seamless printer compatibility—engineered for perfection.
Official links and community
Official Website:
Github Repository:
Follow us:
Join our Discord community:
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Main features
- Advanced Calibration Tools
Comprehensive suite: temperature towers, flow rate, retraction & more for optimal performance. - Precise Wall and Seam Control
Adjust outer wall spacing and apply scarf seams to enhance print accuracy. - Sandwich Mode and Polyholes Support
Use varied infill patterns and accurate hole shapes for improved clarity. - Overhang and Support Optimization
Modify geometry for printable overhangs with precise support placement. - Granular Controls and Customization
Fine-tune print speed, layer height, pressure, and temperature with precision. - Network Printer Support
Seamless integration with Klipper, PrusaLink, and OctoPrint for remote control. - Mouse Ear Brims & Adaptive Bed Mesh
Automatic brims and adaptive mesh calibration ensure consistent adhesion. - User-Friendly Interface
Intuitive drag-and-drop design with pre-made profiles for popular printers. - Open-Source & Community Driven
Regular updates fueled by continuous community contributions. - Wide Printer Compatibility
Supports a broad range of printers: Bambu Lab, Prusa, Creality, Voron, and more. - Belt Printer Support
Slice for belt / conveyor (infinite-Z) printers, with belt-aware supports and a tilted-bed preview. Contributed by Joseph Robertson (@HarrierPigeon). - IDEX/IQEX Parallel Printing Support
Print copies or mirror images of a part on every carriage of an IDEX or IQEX printer at once, with the mode chosen per plate and nozzle clearance zones shown on the bed. Contributed by Clifford (@cgarwood82). - Additional features can be found in the change notes.
Wiki
The wiki aims to provide a detailed explanation of the slicer settings, including how to maximize their use and how to calibrate and set up your printer.
Download
Stable Release
📥 Download the Latest Stable Release
Visit our GitHub Releases page for the latest stable version of OrcaSlicer, recommended for most users.
Nightly Builds
🌙 Download the Latest Nightly Build
Explore the latest developments in OrcaSlicer with our nightly builds. Feedback on these versions is highly appreciated.
How to install
Windows
Download the Windows Installer exe for your preferred version from the releases page. Both x64 and arm64 installers are published — pick the one matching your CPU.
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For convenience there is also a portable build available.
Troubleshooting
- If you have troubles to run the build, you might need to install following runtimes:
- MicrosoftEdgeWebView2RuntimeInstallerX64
- vcredist2019_x64
- Alternative Download Link Hosted by Microsoft
- This file may already be available on your computer if you've installed visual studio. Check the following location:
%VCINSTALLDIR%Redist\MSVC\v142
Microsoft Store
Install from the Microsoft Store when you prefer a Store-signed package (helps on Windows 11 Smart App Control).
Windows Package Manager
winget install --id=SoftFever.OrcaSlicer -e
Mac
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Download the universal DMG, which runs on both Apple Silicon and Intel Macs.
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Drag OrcaSlicer.app to Application folder.
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If you want to run a build from a PR, you also need to follow the instructions below:
Quarantine
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Option 1 (You only need to do this once. After that the app can be opened normally.):
- Step 1: Hold cmd and right click the app, from the context menu choose Open.
- Step 2: A warning window will pop up, click Open
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Option 2: Execute this command in terminal:
xattr -dr com.apple.quarantine /Applications/OrcaSlicer.app -
Option 3:
- Step 1: open the app, a warning window will pop up
- Step 2: in
System Settings->Privacy & Security, clickOpen Anyway:
- Step 1: open the app, a warning window will pop up
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Homebrew Cask
brew install --cask orcaslicer
The Homebrew cask installs the official macOS DMG from GitHub Releases.
Linux
Flathub (Recommended)
OrcaSlicer is available through FlatHub:
Install from the command line:
flatpak install flathub com.orcaslicer.OrcaSlicer
flatpak run com.orcaslicer.OrcaSlicer
It can also be installed through graphical software managers (KDE Discover, GNOME Software, etc.) when Flathub is enabled. Search for OrcaSlicer in your software center.
AppImage
AppImages are published for both x86_64 and aarch64 (ARM64). Pick the file matching your CPU — the ARM64 build has aarch64 in its name (e.g. OrcaSlicer_Linux_AppImage_Ubuntu2404_aarch64_*.AppImage).
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Download App image from the releases page.
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Double click the downloaded file to run it.
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If you run into trouble executing it, try this command in the terminal:
chmod +x /path_to_appimage/OrcaSlicer_Linux.AppImage
How to Compile
All updated build instructions for Windows, macOS, and Linux are now available on the official OrcaSlicer Wiki - How to build page.
Please refer to the wiki to ensure you're following the latest and most accurate steps for your platform.
Klipper Note
If you're running Klipper, it's recommended to add the following configuration to your printer.cfg file.
# Enable object exclusion
[exclude_object]
# Enable arcs support
[gcode_arcs]
resolution: 0.1
Supports
OrcaSlicer is an open-source project, and we're deeply grateful to all our sponsors and backers.
Their generous support helps fund filaments and other essential 3D printing materials for the project.
Thank you! :)
Sponsors
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Backers:
Ko-fi supporters ☕: Backers list
Support the project
Some Background
Open-source slicing has always been built on a tradition of collaboration and attribution. Slic3r, created by Alessandro Ranellucci and the RepRap community, laid the foundation. PrusaSlicer by Prusa Research built on Slic3r and acknowledged that heritage. Bambu Studio in turn forked from PrusaSlicer, and SuperSlicer by @supermerill extended PrusaSlicer with community-driven enhancements. Each project carried the work of its predecessors forward, crediting those who came before.
OrcaSlicer began in that same spirit, drawing from BambuStudio, PrusaSlicer, and ideas inspired by CuraSlicer and SuperSlicer. But it has since grown far beyond its origins. Through relentless innovation — introducing advanced calibration tools, precise wall and seam control, tree supports, adaptive slicing, and hundreds of other features — OrcaSlicer has become the most widely used and actively developed open-source slicer in the 3D printing community. Many of its innovations have been adopted by other slicers, making it a driving force for the entire industry.
The OrcaSlicer logo was designed by community member Justin Levine.
License
- OrcaSlicer is licensed under the GNU Affero General Public License, version 3.
- The GNU Affero General Public License, version 3 ensures that if you use any part of this software in any way (even behind a web server), your software must be released under the same license.
- OrcaSlicer includes a pressure advance calibration pattern test adapted from Andrew Ellis' generator, which is licensed under GNU General Public License, version 3. Ellis' generator is itself adapted from a generator developed by Sineos for Marlin, which is licensed under GNU General Public License, version 3.
- The Bambu networking plugin is based on non-free libraries from BambuLab. It is optional to the OrcaSlicer and provides extended functionalities for Bambulab printer users.