Bearing spool holder with adjustable brake
thingiverse
Spool holder with adjustable brake (to avoid uncontrolled unroll) for 51mm spool. For making it you will need also: two bearings 6905 (25x42x9mm), any compression spring with dimensions more/less similar to standard extruder spring, but with thinner wire, original is too hard. My spring has a wire 0,5mm , I found it somewhere in my workshop, between a lot of "things that can be useful" slice of felt (thickness 1-2mm), which has to be glued at the end of brake. After assembling brake has to be set to provide not so big friction, just to avoid free rotation, not higher.
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