Covid mask: How to use 3MF files in Prusa Slicer with and Ender 3

How to print a Coronavirus mask from a 3MF file using Prusa Slicer to export an STL file or GCODE for a Creality Ender 3. This video is for those just getting started that want to learn how to manipulate a 3MF file in slicer, reduce the number of masks to fit the print bed or adjust settings for optimal print times.

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