by fafaman, published
Have your 1kg or 1lb filament spools nicely fixed under you printer table.
Updated: BearingHolder inner hole made bigger to make sure bearing fits. use tape or paper if too loose.
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HolderLeft and HolderRight are fixed to the printer table (max 22mm width) using a 4mm screw and nut. The BearingHolder should be fit with a 608ZZ Bearing. Two BearingHolders are needed to maintain a single spool. a 8mm rod passes thru all beraings and is put in the table hoders using the dedicated hole.