Following the one for 8″ flopies, for 3,5″ (three-and-a-half-inch) floppies too we
have made a cleaning mechanism in cooperation with Birdbrain. Compared to previous solutions, it provides capability for cleaning floppy disks
from both sides. You can print the mechanism on your own 3D printer.
For any questions regarding printing and the model, please ask in the comment
section on Printables.