thumbhost3mf ☆
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Description:
Finder thumbnail provider for some .gcode, .bgcode and .3mf files
Type: Cask  |  Latest Version: 1.7.1@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Productivity
Tags: finder 3d-printing thumbnails macos 3mf gcode
Install: brew install --cask thumbhost3mf
About:
ThumbHost3mf is a macOS Finder extension that generates and displays thumbnails for 3MF, G-code, and BG-code files in Finder views. It enables quick visual identification of 3D printing models and toolpaths without opening dedicated applications. This utility streamlines workflow for users managing large libraries of 3D printing assets.
Key Features:
  • Finder integration for seamless thumbnail generation
  • Support for .3mf, .gcode, and .bgcode file formats
  • Lightweight system extension with minimal performance impact
  • Native macOS UI for consistent user experience
Use Cases:
  • 3D printing enthusiasts organizing model libraries
  • Makerspace staff managing shared G-code repositories
  • CAD designers reviewing multiple 3MF export variants
Alternatives:
  • QuickLook plugins – General-purpose preview generators that may lack specialized 3D file format support
  • Dedicated 3D viewer apps – Full-featured applications that provide more functionality but require separate launching
Version History
Detected Version Rev Change Commit
Sep 15, 2025 1:06pm 1.7.1 0 VERSION_BUMP e668e8b9
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