Orca Slicer is a fork of Bambu Studio. It was previously known as BambuStudio-SoftFever.
Bambu Studio is based on PrusaSlicer by Prusa Research, which is from Slic3r by Alessandro Ranellucci and the RepRap community. Orca Slicer incorporates a lot of features from SuperSlicer by @supermerill

Prebuilt binaries are available through the github releases page.

• Auto calibrations for all printers
• Sandwich(inner-outer-inner) mode - an improved version of the External perimeters first mode
• Precise wall
• Klipper support
• More granular controls
• More features can be found in change notes

Windows:

1. Unzip the binaries to any folder you prefer, then execute orca-slicer.exe to start the application.
   • If you have troubles to run the build, you might need to install following runtimes:
     • MicrosoftEdgeWebView2RuntimeInstallerX64
     • vcredist2019_x64

Mac:

1. Download the right binaries for your computer: arm64 version for Apple Silicon and x86_64 for Intel CPU.
2. Double click to unzip the package, move OrcaSlicer.app to Application folder.
3. The app is signed but not notarized at the moment due to the proptiery network plugin.
   We have two options to make it run on our machines

• Option 1:
  Execute this command in terminal: xattr -dr com.apple.quarantine /Applications/OrcaSlicer.app

     softfever@mac:~$ xattr -dr com.apple.quarantine /Applications/OrcaSlicer.app

• Option 2:
  • Step 1: open the app, a warning window will pop up
    
  • Step 2: in System Settings -> Privacy & Security, click Open Anyway:
    

Linux(Ubuntu):

1. If you run into trouble to execute it, try this command in terminal:
   chmod +x /path_to_appimage/OrcaSlicer_ubu64.AppImage

• Windows 64-bit

  • Tools needed: Visual Studio 2019, Cmake, git, Strawberry Perl.
  • Run build_release.bat in x64 Native Tools Command Prompt for VS 2019

• Mac 64-bit

  • Tools needed: Xcode, Cmake, git, gettext
  • run build_release_macos.sh

• Ubuntu

  • run BuildLinux.sh -udisr

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

Orca Slicer is licensed under the GNU Affero General Public License, version 3. Orca Slicer is based on Bambu Studio by BambuLab.

Bambu Studio is licensed under the GNU Affero General Public License, version 3. Bambu Studio is based on PrusaSlicer by PrusaResearch.

PrusaSlicer is licensed under the GNU Affero General Public License, version 3. PrusaSlicer is owned by Prusa Research. PrusaSlicer is originally based on Slic3r by Alessandro Ranellucci.

Slic3r is licensed under the GNU Affero General Public License, version 3. Slic3r was created by Alessandro Ranellucci with the help of many other contributors.

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.

The bambu networking plugin is based on non-free libraries. It is optional to the Orca Slicer and provides extended functionalities for users.