Simple Spool Holder

This spool holder accommodates common 1kg filament spool sizes on the market When placed in a sealed bag, it will not tear the bag, and with a maximum width of 100mm, it can also be placed in a rice bin You can choose whether to install two 608zz bearings (even without bearings, the spool still rolls smoothly) If you don't use bearings, you can reverse the screws to prevent washers from getting stuck in the bearing slots