Biqu B1: filament spool holder, internal spool size adaptable
thingiverse
Replacement for filament spool holder with adaptable internal spool size, from 25mm to 75mm diameter. All necessary parts are printed in around 7 hours at 60mm/s speed. Minitool included :) You need: 1 x M8 threaded rod (between 150mm and ... your choice) 2 x 608zz bearing 4 x M8 nuts 1 x M8 washer Issues: The external size of the M8 nuts is variable, so they may not fit or be loose.
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