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Preview3MF

Quick Look previews and Finder thumbnails for 3MF print files, rendered in 3D without opening a slicer.

MIT · Downloads from github.com

License
MIT
Open source
Category
Utilities
Source
GitHub
cavoco
Verified
2026

About Preview3MF

Preview3MF adds Quick Look and thumbnail extensions for .3mf files, so pressing Space in Finder shows a rotating, zoomable 3D view of the model. An overlay lists triangle and object counts and dimensions, and for Bambu Studio or OrcaSlicer projects it shows the build plate, print profile and, after slicing, estimated time and filament.

The host app only needs to be launched once to register the extensions, which are then enabled under Quick Look in the Extensions section of System Settings. Builds are published on GitHub releases.

Information

Source code
cavoco/Preview3MF
License
MIT
Website
cavoco.github.io
Download
github.com
Category
Utilities
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