Filament Spool Shelf for UTZ RAKO Box

Filament Spool Shelf for UTZ RAKO Box (400×300×271)

Dry storage meets perfect organisation! This 3D-printed spool holder insert turns a standard UTZ RAKO storage box into a neat, airtight filament storage solution – keeping your spools dry, organised, and always ready to print.

The Concept

The insert sits inside the UTZ RAKO 400×300×271 container and holds multiple filament spools upright on aluminum rods. A central compartment holds a silica gel container to keep moisture out. Close the lid and your filament is perfectly protected.

Features

• Perfectly fitted for the UTZ RAKO 400×300×271 storage box
• Holds 5–6 standard 1kg spools side by side on aluminum rods
• Integrated silica gel compartment in the center – keep your filament dry
• Hexagonal rod brackets – same proven design as the wall-mounted filament shelf
• Modular frame construction – lightweight yet rigid
• No glue or screws – press-fit assembly with aluminum tubes
• Works as a dry box when combined with a sealed RAKO lid

Specifications

• Compatible box: UTZ RAKO 400×300×271 mm
• Rod diameter: 15.5 mm OD / 12.5 mm ID aluminum tube (standard hardware store stock)
• Cut the rods to the required length to fit the box height

Print Settings

• Material: PETG recommended (dimensional stability, slight flexibility)
• Layer height: 0.2 mm
• Walls: 3 perimeters
• Infill: 25% Gyroid
• Supports: Not required

Assembly

1. Print all bracket and frame parts
2. Cut aluminum tubes to length
3. Assemble the frame by pressing the parts together
4. Place the insert into the UTZ RAKO box
5. Add silica gel to the center compartment
6. Load your spools and close the lid

The perfect solution for anyone who wants to keep their filament collection dry, dust-free, and beautifully organised in a stackable container!