Orca Slicer is an open source slicer for FDM printers.
You can download Orca Slicer here: github releases page.
Join community: OrcaSlicer Official Discord Server

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

OrcaSlicer is fork of Bambu Studio
It was previously known as BambuStudio-SoftFever
Bambu Studio is forked from 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 Orca Slicer's logo is designed by community member Justin Levine(@freejstnalxndr)

Windows:

1. Install and run
   • If you have troubles to run the build, you might need to install following runtimes:
     • MicrosoftEdgeWebView2RuntimeInstallerX64
     • vcredist2019_x64

Mac:

1. Download the DMG for your computer: arm64 version for Apple Silicon and x86_64 for Intel CPU.

2. Drag OrcaSlicer.app to Application folder.

3. If you want to run a build from a PR, you also need following instructions bellow

   - Option 1 (You only need to do this once. After that the app can be oppened 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_

   • Option 2:
     Execute this command in terminal: xattr -dr com.apple.quarantine /Applications/OrcaSlicer.app

         softfever@mac:~$ 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, 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 'sudo ./BuildLinux.sh -u'
  • run './BuildLinux.sh -dsir'

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 an open-source project, and I'm deeply grateful to all my sponsors and backers.
Their generous support enables me to purchase filaments and other essential 3D printing materials for the project.
Thank you! :)

todo: extract ko-fi backers list

Support me

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.

Orca Slicer 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 Orca Slicer and provides extended functionalities for Bambulab printer users.