Spool Holder - Nut & Bolt

A filament spool holder for use on the Anet A8 cradle with the 8mm spindle. The design has been re-mixed from the spool holder by Alexrosa, published Feb 17, 2017 (https://www.thingiverse.com/thing:2112075).

This design can now work with filament spools with the larger internal hole, such as filament supplied by Sunlu and others. These spools have the larger hole (70mm aprox) and hence the need to design this holder.