Spool Hub Adapter Biqu B1 42 x 73
thingiverse
Spool hub adapter to decrease the wobble from oversized center hubs of certain filament brands. This is for brands with a 73mm hub. Tecbears, Sunlu and many more. The spool hole is 42mm specifically to fit the spool of the Biqu B1 but I'm sure it would work with others as long as the size is appropriate. This is a remix from https://www.thingiverse.com/thing:735213
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