Filament holder with friction control

This is the updated design of the filament holder
https://www.thingiverse.com/thing:2568123
with added friction - now the spool will not unwind randomly which may cause problem during the printing.

I used 0.1mm thin metal sheet (from stencils) glued with double adhesive to one of the bearing holders. Four pieces of felt were attached with double adhesive to the arms of the friction plate (friction wheel). The arms holding the felt have spring properties (they are like leafs) and by using t