Side spool holder for Rook 180, replaces one of top-frame connectors. Insert PTFE tube into slots to reduce friction during spool rotation.
Filament guide allows to mount PTFE tube (you'll need M3x8 screw) to guide filament away from frame corner. Short (~3 inch) piece of tube works well, mounting reverse-bowden is also an option. Clamp your tube with M3x8 screw and M3 hexnut.
The author marked this model as their own original creation.