Filament Buffer box - No need to rewind

10-Channel Circular Filament Buffer (Air-Tight & Laser-Ready)

This is a high-capacity, space-saving circular filament buffer designed for multi-material setups (like 10-spool Dry-boxes). It ensures your filament stays organized and retracted neatly without tangling. The design focuses on being 99% Air-Tight, allowing you to maintain low humidity even inside the buffer system.

Key Features

• 10-Channel Support: Perfect for large-scale projects using multiple AMS or Drybox units.
• Air-Tight Tested: Designed with specialized seats for O-rings and screws to prevent moisture ingress.
• Compact Circular Geometry: 100mm diameter provides the ideal bending radius for PLA/PETG, preventing filament brittle-breaking.
• Acrylic Window: Designed to be used with a 100mm Acrylic/Mica sheet for visual monitoring of filament status.
• Laser-Cut Ready: Includes precise .DXF file for a 2mm Acrylic (Mica) front cover, offering a crystal-clear view and a superior seal. https://makerworld.com/en/models/2486066-filament-buffer-box-lid

Bill of Materials (BOM)

To complete this build, you will need:

• Screws: 3x M3*10 Phillips Pan Head (for the Mica cover). (M3*4 to M3*12 will work too)
• Sealing: 6x O-rings (CS3.5mm - OD22mm) and B-7000 Glue (essential for sealing the PTFE entry points).

Print Settings (Optimized for Bambu Lab A1)

• Material: PETG or PLA (PETG recommended for better seal).
• Wall Loops: 4 layers (Crucial for air-tightness).
• Infill: 25% Gyroid.
• Ironing: Enabled for the top surface to ensure a flat contact with the Mica sheet.
• Supports: Not required for most parts.

Assembly Tip

• Laser Cut the Lid: Use the provided file to cut your 2mm Acrylic cover.
• For a perfect seal, apply a small bead of B-7000 glue or Silicone Gasket Maker around the Mica contact rim before attach to the box and fasten screws down. Let it cure for 24 hours before performing an air-leak test.
• Put o-rings to input holes
• You can try with x1 profile to see if it works for you