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Thumbnails

Mainsail can display thumbnails in the file browser and as previews in the print status. These thumbnails are generated by your slicer and embedded in the G-code file.

Print Start Dialog
Thumbnail in print start dialog
G-code Files
Thumbnails in G-code files list

Slicer Configuration

To display thumbnails in Mainsail, your slicer must be configured to generate and embed them in the G-code file.

For detailed setup instructions, see the Slicer Configuration section.

Recommended Thumbnail Sizes

For best results, configure your slicer to generate thumbnails at 32x32 and 400x300 pixels. The small size is used in the file list, while the large size is displayed in the print start dialog.