OrcaSlicer
OrcaSlicer is a macOS desktop slicer for preparing 3D models, printer settings, and toolpaths before sending jobs to compatible 3D printers.
What is OrcaSlicer?
OrcaSlicer is a desktop 3D printing slicer for macOS and other major platforms that helps users turn 3D models into printer-ready toolpaths and machine settings. It is designed for hobbyists, makers, and advanced users who want detailed control over print preparation, calibration, and output quality. Common workflows include importing models, arranging parts on the build plate, choosing material and printer profiles, generating supports, and exporting or sending print jobs. OrcaSlicer also includes tuning and calibration tools that help users dial in extrusion, temperature, retraction, and other print parameters for better results. It supports a wide range of printer ecosystems and is commonly used in workflows built around FDM 3D printing. Publisher information shown publicly for the project includes SoftFever across its official project materials.
Key features
- Import 3D models and prepare them for FDM printing
- Arrange parts on the build plate and adjust print orientation
- Tune print settings with calibration tools for flow, temperature, and retraction
- Generate supports and optimize overhang handling for difficult models
- Customize wall, seam, infill, and hole behavior for print quality control
- Use printer and material profiles to match different hardware setups
- Export printer-ready files or send jobs through supported network workflows
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
OrcaSlicer is legitimate 3D printing software, and the file access it uses is normal for importing models, saving projects, and exporting print files. Users may also connect it to networked printers or related services as part of normal printing workflows. The main practical caution is to download updates only from the official OrcaSlicer site or its official project release sources, because lookalike download pages have circulated online. If you no longer use the app, removing it is generally low risk aside from losing its local settings, profiles, and cached data.
Recommendation: Keep OrcaSlicer if you prepare files for 3D printers or manage printer profiles on your Mac. If you stopped using it, you can remove the app and later clean up its support files to recover space, but expect to lose saved preferences, presets, and local configuration unless you back them up first.
Common paths
/Applications/OrcaSlicer.app
Cache paths
~/Library/Caches/OrcaSlicer~/Library/Caches/com.orcaslicer.OrcaSlicer
Support paths
~/Library/Application Support/OrcaSlicer
Preference paths
~/Library/Preferences/com.orcaslicer.OrcaSlicer.plist
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