Silica Box for Bambu Lab / Sunlu (v3) Spools - v2

Silica Box for Bambu Lab and Sunlu (v3) Spools - v2

This silica box system is the perfect solution to keep your filament dry right in the heart of the spool. It was specially developed for use with Bambu Lab and Sunlu  (V3) spools. The system is modular and offers three different variants to meet every need – whether you just want to store desiccant, monitor humidity, or optimize air circulation

✨ Features

• Perfect Fit: Optimized for Bambu Lab and Sunlu (V3) spools
• Three Specialized Variants:
  1. Standard: Maximum capacity for desiccant
  2. Hygrometer: Lid with holder for continuous humidity control
  3. Air Duct: Optimized design for improved air circulation
• Dual Lid System: Each variant includes two lids (Closure & Spool Insert)
• Extra Fine Grid: The ventilation slots allow for maximum air circulation, but are designed so finely that even small silica beads remain securely in the box and do not contaminate your AMS or printer housing
• Secure Closure: A precise thread ensures a flush finish and secure hold
• 30° Outlet Chamfer: A 30-degree chamfer has been integrated into the upper edge of the box. This acts as a funnel effect, allowing the box to be emptied faster and completely when changing the silica gel. No more annoying shaking

📏 Dimensions

• Height: 67 mm
• Diameter: 54 mm

🔧 Assembly

Handling is very simple:

1. Choose the desired box variant and the appropriate lid (Closure or Spool Insert)
2. Unscrew the lid and fill the box with silica gel beads
3. Screw the lid back on hand-tight. The clean thread guarantees a firm fit
4. Simply insert the box into the central opening of your filament spool
   Done!

ℹ️ Information

If you need the silica boxes in a different size, just let me know
Then I can see what's possible
 

Ensure perfect print results with optimally dried filament – happy printing!

🔄 Update History

• 08.06.2026
  • Diameter reduced from 55mm to 54mm for more compatibility
  • Air duct diameter reduced from 14.8mm to 7.2mm to better fill silica beads
  • Design improvement
• 12.06.2026
  • Box with air duct added
  • Corresponding print profiles for PLA and PETG added
  • Standard lid slightly enlarged for better handling
• 02.03.2026
  • Redesign of the box and the closure lid
  • Creation of a spool insert lid to place the box in the filament spool
  • Removal of the version from the name
  • Update of print profiles
• 28.02.2026 
  • Box with hygrometer integration added
  • Corresponding print profiles for PLA and PETG added
• 08.02.2026 
  • Print profile for PLA added
• 10.01.2026 
  • Initial Release

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📸 Show us your results! 😀

I look forward to your 💬feedback, a ⭐star rating, a ❤️like and 📷pictures of your 🖨️prints!

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Link: https://makerworld.com/de/@exo2dus

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Thank you and happy printing!