Modular Filament spool holder

Modular 3D Printer Filament Spool Holder with Humidity Gauge Mount

This is a fully 3D-printed, modular filament spool holder designed to keep your materials organized, accessible, and stored in optimal conditions. The holder supports multiple spool types and includes labeled sections for PLA, PETG, or any filament you choose to store. Its sturdy frame and honeycomb base ensure excellent strength while keeping the print lightweight and material-efficient.

Features

• Modular construction – Each bay snaps together using simple connectors, allowing you to expand or rearrange the holder as needed.
• Integrated humidity gauge mount – A dedicated circular slot holds a compact hygrometer so you can monitor moisture levels around your filament.
• Category labels – Raised text labels (PLA, PETG, etc.) make it easy to keep different materials separated and organized.
• Honeycomb ventilation and strength – The perforated structure reduces material usage while keeping the holder rigid and stable.
• Print-friendly design – All parts are optimized for A1 printing ( supports needed) and can be printed in PLA, PETG, or other sturdy materials.

Use Case

Ideal for makers who want a clean, organized filament station. Perfect for display shelves, dry boxes, or benchtop storage. The hygrometer mount helps maintain proper filament conditions, especially for moisture-sensitive materials.

Print Recommendations

• Material: PLA
• Layer height: 0.2 mm
• Infill: 15% (honeycomb parts already designed for strength)
• Supports: Needed supports
• Bed size: Standard beds (220×220 mm) can print most modules individually

Design by Barto Cube on MakerWorld (license: CC0).